Emerson A31A Instruction Manual
Contents
1. 37 6528 A3143 2 IL VIEW A A A Figure 6 Optional Shaft to Valve Body Bonding Strap Assembly 6 For more information refer to the Packing Maintenance section below Maintenance Valve parts are subject to normal wear and must be inspected and replaced as necessary The frequency of inspection and replacement depends upon the severity of service conditions Key numbers in this procedure are shown in figure 9 unless otherwise indicated NYSE Avoid personal injury from sudden release of process pressure Before performing any maintenance operations e Always wear protective gloves clothing and eyewear when performing any maintenance operations to avoid personal injury e Disconnect any operating lines providing air pressure electric power or a control signal to the actuator Be sure the actuator cannot suddenly open or close the valve e Use bypass valves or completely shut off the process to isolate the valve from process pressure Relieve process pressure on both sides of the valve Drain the process media from both sides of the valve e Vent the power actuator loading pressure Use lock out procedures to be sure that the above measures stay in effect while you work on the equipment e The valve packing box may contain process fluids that are pressurized even when the valve has been removed from the pipeline Process fluids may spray out under pressure when re2. SEAL RING RETAINING ta RING CRYOGENIC AT SHUTOFF CT SEAL RING HIGH PRESSURE VALVE DISC AT SHUTOFF 1 SOFT SEAL WITH BACK UP O RING CRYOGENIC SEAL GRAPHITE GRAPHITE GASKET GASKET BACK UP RING RETAINING a TIME RING RETAINING RING Novex RING SEAL RING RESILIENT INSERT HIGH PRESSURE AT SHUTOFF lt 1 VALVE DISC HIGH PRESSURE AT SHUTOFF lt 1 PHOENIX III NOVEX SEAL FIRE TESTED SEAL NOTE 15 FOR OPTIMUM SEAL PERFORMANCE THE PREFERRED VALVE ORIENTATION AT SHUTOFF IS WITH THE RETAINING RING DOWNSTREAM FROM THE HIGH PRESSURE SIDE OF THE VALVE B2334 1 IL Figure 3 Available Seal Configurations Instruction Manual Form 5291 March 2008 A31A Valve Table 4 Valve Body Data Wafer Style Valves CL300 SHAFT DIA AT FACE TO FACE MINIMUM APPROXIMATE WEIGHT VALVE SIZE NPS YOKE BEARING DIMENSION ID Wafer Single Flange mm kg 14 44 45 117 5 304 3 125 2 231 3 16 44 45 133 4 346 2 189 2 300 7 18 57 15 149 2 389 4 237 7 411 4 20 69 9 155 6 442 0 370 6 551 1 24 69 9 181 0 523 2 477 2 828 7 Inches Pounds 14 1 3 4 4 5 8 11 98 276 510 16 1 3 4 5 1 4 13 63 417 663 18 2 1 4 5 7 8 15 32 524 907 20 2 3 4 6 1 8 17 40 817 1215 24 2 3 4 7 1 8 20 59 1052 1827 1 Face to face dimensions are in compliance with MSS SP68 and 609 specifications 2 Minimum I D is the minimum pipe or flange I D required for disc swing clearance
3. and retaining ring gasket follow the appropriate instructions given below PTFE Seals A maintenance kit with installation tools is available through your Emerson Process Management sales office 1 Locate the replacement seal ring key 5 and note the shape of the ring The ring is wider across one edge diameter and narrower across the other edge diameter as shown in figure 8 Around the outside circumference is one wide groove Before installing the seal ring into the valve body place the O ring key 6 into the wide outer groove of the seal ring Refer to figure 8 2 Install the seal ring and O ring assembly in the valve body The wider outside diameter of the seal ring as marked in figure 8 goes into the T slot area of the body see figure 5 Start the edge with the wider diameter into the T slot of the valve body using a blunt end screwdriver If you have a maintenance kit use the seal installation tools 3 Carefully tuck the O ring downward into the body T slot until the seal ring is completely entrapped in the body T slot and it completely covers the backup O ring 4 Re install the retaining ring and the socket head cap screws Tighten the cap screws just enough to eliminate any movement of the retaining ring Do not over tighten the retaining ring screws Using a blunt end tool carefully tuck the lip of the seal ring under the retaining ring 5 When the seal is under the lip of the retaining ring contin
4. 20 and 21 to cover the lower shaft opening in the valve body The gasket is held in place by the gasket retainer and four hex head bolts and lockwashers keys 23 and 22 When reassembling the valve use a new gasket Be sure to center the gasket over the lower shaft bore before retightening bolts Tighten down bolts evenly in a crossover or star pattern Refer to table 6 for proper torque values Parts Ordering When replacement parts are required always use genuine Fisher parts Typical parts are shown in figure 9 When corresponding with your Emerson Process Management sales office about Type A314 valve please identify the valve as a Type A31A and provide the valve serial number For valve actuator combinations assembled at the factory the valve serial number is stamped on the nameplate attached to the actuator Use only genuine Fisher replacement parts Components that are not supplied by Emerson Process Management should not under any circumstances be used in any Fisher valve because they will void your warranty might adversely affect the performance of the valve and could cause personal injury and property damage Note Neither Emerson Emerson Process Management nor any of their affiliated entities assumes responsibility for the selection use and maintenance of any product Responsibility for the selection use and maintenance of any product remains with the purchaser and end user Retrofit Kit
5. CAUTION To avoid damage to the valve disc during installation the valve must be in the fully closed position If the Type A31A valve is equipped with a fail open actuator remove the actuator before installing the valve actuator assembly or cycle the valve into the fully closed position Then take appropriate steps to be sure that the actuator does not cause the valve to open during installation 1 See figure 5 for recommended valve orientation e For Wafer Style Valves Install the lower flange bolts first to form a cradle for the valve see figure 4 See table 5 for flange bolt specifications Instruction Manual Form 5291 March 2008 A31A Valve e For Single Flange Valves Position the valve between the flanges Be sure to leave enough room for the flange gaskets Install the lower flange bolts 2 For all Valves Select the appropriate gaskets for the application Flat sheet spiral wound or other gasket types made to the ASME B16 5 standard or user s standard can be used on Type A31A valves depending on the service conditions of the application 3 For Wafer Style Valves Properly orient the valve according to the specific application Place the valve in the line so the flow properly enters the valve as indicated by the flow tag Then install the valve and the gaskets between the flanges into the cradle formed by the flange bolts 4 Install the remaining flange bolts 5 For Wafer Style Valves Make sure th
6. FA Ne EPR Key 24 Thrust Bearing VALVE SIZE NPS QUANTITY NEEDED PEEK 316 NITRIDE BRONZE MICROSEAL PTFE COMPOSITE 150 14 2 V159686X012 V169332X022 V169332X042 V169332X052 16 2 V159687X012 V168511X022 V168511X032 V168511X042 18 2 V159688X012 V131701X022 V131701X042 V131701X012 20 2 V159689X012 V111417X022 V111417X012 V111417X042 24 2 V159690X012 V127739X032 V127739X052 V127739X012 CL300 14 2 V168180X012 V168530X022 V168530X042 V168530X052 16 2 V168181X012 V131681X022 V131681X042 V131681X012 18 2 V168182X012 V131702X022 V131702X042 V131702X012 20 2 V168183X012 V128345X022 V128345X042 V128345X012 24 2 V168184X012 V152839X012 V152839X042 V152839X052 Recommended spare parts ENVIRO SEAL and Fisher are marks owned by Fisher Controls International LLC a member of the Emerson Process Management business division of Emerson Electric Co Bettis is a mark owned by the Emerson Process Management business division of Emerson Electric Co Emerson Process Management Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co All other marks are the property of their respective owners The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicability We reserve the r
7. extending actuator rod closes valve and lll push down to open extending actuator rod opens valve Valve Body Classification Face to face dimensions are in compliance with MSS SP68 and 609 standards Valve bodies are designed for installation between ASME B16 5 CL150 and 300 raised face flanges Disc Rotation Clockwise to close when viewing from the drive shaft end through 90 degrees rotation Shaft Diameter and Approximate Weight See tables 3 and 4 ENVIRO SEAL Packing This optional packing system provides improved sealing guiding and transmission of loading force to control liquid and gas emissions Contact your Emerson Process Management sales office for availability of ENVIRO SEAL packing 1 The pressure temperature limits in this manual and any applicable code or standard limitation should not be exceeded 2 Ratio of maximum flow coefficient to minimum usable flow coefficient may also be called rangeability Instruction Manual Form 5291 March 2008 A31A Valve 0 100 200 300 20 g ui 2 rd 15 2 200 8 E ji 2 4 m amp 100 5 100 4006 100 200 200 400 450 OPERATING TEMPERATURE F CL150 SOFT SEAL 0 100 9 400 tc 2 4 300 tr a 200 Z 100 a 100 200 20 100 0 100 200 800 700 ue n uj 600 ec 2 500 ul t 2 400 E E 300 m 200 gt 100 0 200 0 200 400 NOTE OPERATING TEMPER
8. four bearings in the upper and four in the lower shaft will be required 4 Hold the lower shaft thrust bearing key 24 in the valve body bore against the counterbore of the lower shaft bearing bore Push the lower shaft into the bearing bore just enough to hold the thrust bearing 5 When installing the upper bearing key 7 insert one or more bearings into the upper shaft from the body bore into the bearing bore below the packing box Use caution to prevent damage to the bearing CAUTION Use caution to prevent damage to the bearing when installing the upper bearing in the previous step 6 Hold the upper shaft thrust bearing key 24 in the valve body bore against the counterbore of the upper shaft bearing bore Push the upper shaft through the packing box side into the bearing bore just enough to hold the thrust bearing 7 When installing the lower bearing key 4 insert one or more bearings into the lower shaft bearing bore so it is flush with the body bore 8 Insert the lower shaft through the bore in the valve body uncovered by removal of the gasket retainer Hold the lower shaft thrust bearing key 24 in the valve body bore against the counterbore of the lower shaft bearing bore Push the lower shaft into the bearing bore just enough to hold the thrust bearing CAUTION To avoid damage to the disc seal and T slot area do not force the disc past the seal or T slot area Install the disc from the opposite side o
9. 2 RRTYX000172 CL300 50 8 2 RRTYXRT0602 RRTYX000182 ie CL150 38 1 1 1 2 RRTYXRT0612 RRTYX000192 CL300 57 2 2 1 4 RRTYXRT0622 RRTYX000202 CL150 44 5 1 3 4 RRTYXRT0632 RRTYX000212 CL300 63 5 2 1 2 RRTYXRT0642 RRTYX000222 20 CL150 50 8 2 RRTYXRT0652 RRTYX000182 24 CL150 63 5 2 1 2 RRTYXRT0662 RRTYX000222 1 Shaft diameter Diameter through the packing box 2 For larger shaft sizes consult your Emerson Process Management sales office e escription art Number arts List Key Descrip Pari Numi 13 Packing Set Graphite CL150 continued NPS 18 V111028X012 Note NPS 20 V111438X012 NPS 24 V111442X012 Part numbers are shown for recommended spares CL300 only For part numbers not shown contact your NPS 14 V111438X012 Emerson Process Management sales office NPS 16 V111696X012 NPS 18 V111442X012 Key Description Part Number NPS 20 V111705X012 1 Valve Body NPS 24 V111709X012 14 Stud 2 req d If you need a valve body as a replacement part order the 15 Hax nut 2 req d valve size ASME rating and desired material Contact your 17 H x ds Mese Emerson Process Management sales office Eam E 2 req d 2 Disc 18 Retaining Ring 3 Drive Shaft 19 Retaining Ring Screw 4 Follower Shaft 20 Gasket Retainer 5 Seal Ring See following table 21 Gasket See following table 6 Backup Ring See following table 22 Lockwasher 4 req d 7 Bearing See following table 23 Screw 4 req d 8 Bearing Stop 24 Thrust Bearing See followi
10. 2 V142384X022 V142384X032 V159146X022 300 14 V111626X012 V111626X022 V142584X012 V142584X022 V142584X032 V164731X022 16 V111629X012 V111629X022 V140837X012 V140837X022 V140837X032 V168015X032 18 V111632X012 V111632X022 V114459X012 V114459X022 V114459X032 V167979X022 20 V111635X012 V149634X012 V114462X012 V114462X022 V114462X032 V167658X022 24 V111638X012 V111638X012 V142372X012 V142372X022 V142372X032 V164730X022 1 Includes FKM fluorocarbon Nitrile EPR Chloroprene and PTFE 2 Includes FKM Nitrile EPR and Chloroprene 20 Recommended spare parts Instruction Manual Form 5291 March 2008 Valve NPS 14 THROUGH 24 CL150 AND 300 NPS 14 CL150 NPS 14 THROUGH 24 CL300 B2388 1 IL NPS 16 THROUGH 24 CL150 Figure 9 Type A31A Wafer Style Valve Assembly 21 Instruction Manual Form 5291 A31A Valve March 2008 Key 6 Backup Ring VALVE SIZE NPS FKM NITRILE EPR CHLOROPRENE PTFE 1 Soft Seal PTFE UHMWPE CL150 14 V111360X012 V111360X022 V111360X032 V111360X042 V111358X012 16 V111365X012 V111365X022 V111365X032 V111365X042 V111363X012 18 V111370X012 V111370X022 V111370X032 V111370X042 V111368X012 20 V111375X012 V111375X022 V111375X032 V111375X042 V111373X012 24 V111385X012 V111385
11. 2 to 204 80 to 400 Fluorocarbon Backup O Ring 40 to 232 40 to 450 NOVEX 531600 Seal 3 Ring 150 46 to 538 50 to 1000 Seal Ring NOVEX 531600 Seal 3 Ring CL300 46 to 816 5010 1500 NOVEX 21800 Seal Ring CL300 46 to 816 50 to 1500 1 NACE trim constructions are available consult your Emerson Process Management sales office 2 PEEK stands for poly ether ether ketone 3 For a complete material description contact your Emerson Process Management sales office 4 UHMWPE stands for ultra high molecular weight polyethylene 5 Cast or wrought plate grades used interchangeably depending upon availability unless specified by customer Installation The valve is normally shipped as of a control valve assembly with the power actuator mounted on the valve If the valve or actuator have been purchased separately or if the actuator has been removed for maintenance mount the actuator on the valve and adjust actuator travel before installing the valve into the line This is necessary due to the measurements that must be made during the actuator calibration adjustment process Refer to the Actuator Mounting section of this manual and to the Separate actuator instruction manual for mounting and adjusting instructions before proceeding To avoid personal injury or property damage resulting from the sudden release of pressure e Always wear protective gloves clothing and eyewear when performing any mainte
12. 541X042 30 Drive Screw 2 req d not shown CL300 31 Key NPS 14 14B3541X082 33 Flow Direction Arrow not shown NPS 16 14B3541X052 34 Packing Box Ring NPS 18 14B3541X042 35 Disc Shaft Pin Assembly not shown NPS 20 14B3541X062 NPS 24 14B3541X072 2 106 Anti Extrusion Ring Composition graphite ENVIRO SEAL Packing System filled PEEK 2 req d Single PTFE packing w std packing box See figure 10 CL150 10 Anti Blow Flange NPS 14 14B3489X012 17 Hex Jam Nut 4 req d NPS 16 14B3494X012 100 Packing Flange Stud 4 req d NPS 18 13B9159X012 101 Packing Flange Nut 4 req d NPS 20 13B9168X012 102 Packing Flange SST NPS 24 12B7783X012 103 Spring Pack Assembly CL300 105 Packing Set NPS 14 13B9168X012 Use with PTFE packing NPS 16 14B3642X012 CL150 NPS 18 12B7783X012 NPS 14 14B3490X012 NPS 20 13B9168X012 NPS 16 14B3495X012 NPS 24 14B5734X012 NPS 18 13B9155X012 107 Packing Box Ring NPS 20 13B9164X012 111 Tag not shown NPS 24 12B7782X012 112 Cable Tie not shown CL300 113 Lubricant Key 5 Seal Ring VALVE SIZE NPS SOFT SEAL PHOENIX Ill SEAL METAL SEAL PTFE UHWMPE PTFE ETFE PAPE for oxygen NOVEX service CL150 14 V168932X012 V168932X022 V140831X012 V140831X022 V140831X032 V159013X012 16 V111337X012 V111337X022 V140857X012 V140857X022 V140857X032 V159014X022 18 V111340X012 V111340X022 V114458X012 V114458X022 V114458X032 V159026X022 20 V111343X012 V111343X022 V142359X012 V142359X022 V142359X022 V159044X022 24 V111349X012 V111349X022 V142384X01
13. ATURE C DIFFERENTIAL PRESSURE BAR OPERATING TEMPERATURE C 0 100 200 300 800 700 600 2 500 Ul 300 DIFFERENTIAL PRESSURE PSI 100 100 0 OPERATING TEMPERATURE F CL300 SOFT SEAL OPERATING TEMPERATURE C 200 300 400 500 DIFFERENTIAL PRESSURE BAR 400 55 50 45 40 35 30 25 20 35 10 5 DIFFERENTIAL PRESSURE BAR 100 200 300 400 500 600 700 800850 300 400 500 600 700 1 BECAUSE OF POTENTIAL EROSIVE EFFECTS AND OPERATING TEMPERATURE F CL150 NOVEX SEAL OPERATING TEMPERATURE C 300 400 500 21800 316 STAINLESS STEEL 600 800 1000 OPERATING TEMPERATURE F CL300 NOVEX SEAL 800 600 900 1000 700 1200 1400 800 modo mU DIFFERENTIAL PRESSURE BAR 1600 25 TEMPERATURE LIMITATIONS DO NOT ACCOUNT FOR THE PREMATURE SEAL FAILURE THAT CAN OCCUR THROTTLING ADDITIONAL LIMITATIONS IMPOSED BY THE BACKUP RING PTFE SEALS AT DIFFERENTIAL PRESSURES GREATER THAN USED WITH THIS SEAL TO DETERMINE THE EFFECTIVE 20 7 BAR 300 PSID AT DISC ANGLES LESS THAN 20 OPEN IS TEMPERATURE LIMITATION OF THE APPROPRIATE SEAL BACKUP RING COMBINATION REFER TO TABLE 2 NOT RECOMMENDED B2335 2 IL Figure 2 Maximum Pressure Temperature Ratings Instruction Manual Form 5291 A31A Valve March 2008 Table 2 Material Temperature Ratings TEMPERATU
14. Instruction Manual Form 5291 March 2008 Valve Type A31A High Performance Butterfly Valve NPS 14 through 24 Contents Introduction 22 22 2 1 Scope Description 1 Specifications Table 2 Installation 4 Valve Orientation 5 Before Installing the 5 Adjusting the Actuator Travel Stops or Travel 8 Installing the Valve 8 Packing Adjustment and Shaft Bonding 9 Maintenance 10 Removing and Replacing the Actuator 10 Packing Maintenance 10 Removing the 11 Seal Maintenance 11 PIPE S6alS 2 11 NOVEX Phoenix III and or Phoenix III Fire Tested Seals 14 Anti Blowout Design Packing Valve Shaft Disc and Bearing Maintenance 15 Installing the Two Piece Shaft 16 Gasket Retainer 18 Parts Ordering 18 Pans LISE eet dies bh 19 Introduction Scope of Manual This instruction manual includes installation maintenance and parts ordering information for NPS 14 through 24 Type A31A High Performance Butterfly Valves see figure 1 Refe
15. RE RANGE COMPONENT AND MATERIAL OF CONSTRUCTION To oF Valve Body Carbon Steel WCC or SA 516 70 6 29 to 427 20 to 800 CF8M 316 SST CL150 198 to 538 325 to 1000 CF8M FMS 20816 0 04 min carbon CL300 19816 816 325 to 1500 Disc CF8M 316 SST w or w o Hard coating 198 to 538 325 to 1000 CF8M with CoCr A edge Alloy 6 19816 816 325 to 1500 Shaft 20910 198 10 538 325 to 1000 517400 17 4 PH 1025 73 to 454 100 to 850 17400 17 4 PH H1150M 196 to 454 320 to 850 Bearings 2 standard 73 to 260 100 to 500 S31600 9 198 to 816 325 to 1500 Packing PTFE Packing and PTFE ENVIRO SEAL Packing 54 to 232 65 to 450 Graphite packing 198 to 916 325 to 1500 Graphite packing with oxidizing media 198 to 538 325 to 1000 Seal Ring Nitrile Backup O Ring 29 to 93 20 to 200 Chloroprene Backup O Ring 48 to 149 45 to 300 EPR Backup O Ring 54 to 182 65 to 360 Fluorocarbon Backup O Ring 29 to 204 20 to 400 PTFE Backup O Ring 73 to 204 100 to 400 UHMWPE Seal Ring CL150 Only Ri d Nitrile Backup O Ring 29 to 93 20 to 200 81 Chloroprene Backup O Ring 43 to 93 45 to 200 sctup tung EPR Backup O Ring 54 to 93 65 to 200 Fluorocarbon Backup O Ring 29 to 93 20 to 200 PTFE Backup O Ring 73 to 93 100 to 200 Phoenix and or FireTested Construction S31600 and PTFE Seal Ring with Nitrile Backup O Ring 40 to 149 40 to 300 Chloroprene Backup O Ring 54 to 149 65 to 300 EPR Backup O Ring 6
16. Table 5 Hex Head Screw Stud Bolt and Cap Screw Data NUMBER OF CAP NUMBER OF STUD SIZE DIAMETER INCH LENGTH OF CAP LENGTH OF STUD VALVE SCREWS BOLTS AND THREAD SCREWS INCH BOLTS INCH SIZE NPS 150 CL300 CL150 300 CL150 300 CL150 300 150 CL300 Single Flange Style 2 14 24 40 m oom 1 8 1 1 8 8 2 3 4 3 1 2 16 32 40 1 8 1 1 4 8 3 3 4 18 32 48 sm 1 1 8 8 1 1 4 8 3 1 4 4 20 40 48 1 1 8 8 1 1 4 8 3 1 2 4 24 40 48 1 1 4 8 1 1 2 8 3 1 2 4 1 2 Wafer Style 14 8 12 16 1 8 1 1 8 8 em 3 1 2 9 1 2 12 16 8 16 16 1 8 1 1 8 8 3 3 4 10 13 1 2 18 em 8 16 16 1 1 8 8 1 1 4 8 4 11 13 3 4 20 8 20 20 1 1 8 8 1 1 4 8 Bees 4 12 14 1 2 24 sas 8 20 20 1 1 4 8 1 1 2 8 4 1 2 14 16 1 2 1 Thread engagement in accordance with ASME 831 3 Process Piping 2 Bolting lengths are based on installation of valve between standard raised face flanges and utilizing flange gaskets with a final compression thickness of 1 8 inch When gaskets used have a final compression thickness of less than 1 8 inch reduce bolting lengths shown by 1 4 inch CAUTION When using an actuator the actuator travel stop or actuator travel for such as a valve positioner If the valve and actuator have been purchased separately or if the actuator has been removed for maintenance prope
17. X022 V168528X042 V168528X052 16 4 V168186X012 V128066X032 V128066X052 V128066X012 18 4G V168187X012 V170455X012 V170455X032 V170455X042 20 4G V168188X012 V131699X042 V131699X032 V131699X012 24 4G V168189X012 V131703X042 V131703X052 V131703X012 1 Upper bearing 2 Lower bearing 3 Both upper and lower bearings 22 Recommended spare parts Instruction Manual Form 5291 March 2008 A31A Valve STACKING ORDER OF PTFE PACKING RINGS 29 PTFE PACKING SYSTEM GRAPHITE PACKING SYSTEM STACKING ORDER OF GRAPHITE PACKING RINGS 1 VALVES WITH SHAFTS LARGER THAN 38 1 mm 1 1 2 INCH USE GRAPHITE RINGS NOTES Figure 10 ENVIRO SEAL Packing Systems A31A Valve Instruction Manual Form 5291 March 2008 Key 21 Gasket SOFT SEAL METAL PHOENIX III SOFT SEAL amp METAL PHOENIX III VACVE Size Standard and Nace Standard and Nace For Oxygen Service CL150 14 V125000X022 V125000X012 V125000X032 16 V125001X012 V125001X012 V125001X032 18 V125002X022 V125002X012 V125002X032 20 V124604X022 V124604X022 V124604X032 24 V124603X022 V124603X012 V124603X032 300 14 V124604X022 V124604X012 V124604X032 16 V139033X022 V139033X012 V139033X032 18 V139502X022 V139502X012 V139502X032 20 V139619X022 V139619X012 V139619X032 24 V135138X022 V135138X012 V135138X032 aus
18. X022 V111385X032 V111385X042 V111383X012 300 14 V111648X012 V111648X022 V111648X032 V111648X042 16 V111653X012 V111653X022 V111653X032 V111653X042 18 V111370X012 V111370X022 V111370X032 V111370X042 20 V111375X012 V111375X022 V111375X032 V111275X042 24 V111658X012 V111658X022 V111658X032 V111658X042 Phoenix Ill 316 PTFE ETFE amp Oxygen Service CL150 14 V111647X012 V111648X022 V111648X032 V111648X042 16 V111360X012 V111360X022 V111360X032 V111360X042 18 V111365X012 V111365X022 V111365X032 V111365X042 20 V111375X012 V111375X022 V111375X032 V111375X042 24 V111385X012 V111385X022 V111385X032 V111385X042 300 14 V110203X012 V110203X022 V110203X032 V110203X042 16 V111360X012 V111360X022 V111360X032 V111360X042 18 V111365X012 V111365X022 V111365X032 V111365X042 20 V111370X012 V111370X022 V111370X032 V111370X042 24 V111375X012 V111375X022 V111375X032 V111375X042 1 Not available in UHMWPE Key 7 Bearing VALVE SIZE NPS QUANTITY NEEDED PEEK 316 NITRIDE BRONZE MICROSEAL PTFE COMPOSITION CL150 vitet474X022 71614702 V161474X052 14 262 V111398X032 V111398X042 V111398X052 79 V157057X012 16 49 V157058X012 V161472X022 V161472X042 V161472X052 18 49 V157059X012 V131700X022 V131700X042 V131700X012 20 49 V157060X012 V169414X012 V169414X032 V169414X042 24 49 V157061X012 V127742X032 V127742X042 V127742X012 300 14 4 68802 V168528
19. al or power actuator Manually rotate the upper shaft key 3 counterclockwise until the disc has moved a full 180 degrees away from the closed position Instruction Manual Form 5291 A31A Valve March 2008 PACKING FOLLOWER STUD amp HEX NUT ANTI BLOWOUT FOLLOWER HEX JAM NUT VALVE BODY EXTERNAL DETAILS PACKING FOLLOWER Cnt ANS HEX NUT SPLINED SHAFT PACKING ANTI FOLLOWER BLOWOUT GLAND HEX JAM kii d NUT BLOWOUT ANTI BLOWOUT RE P FOLLOWER ANTI BLOWOUT FOLLOWER VALVE BODY CIRCUMFERENTIAL ANTI BLOWOUT SHOULDER GLAND TYPICAL PACKING CO758 U IL CUTAWAY INTERNAL DETAILS 275 lt gt lt CUTAWAY ENVIRO SEAL PACKING ASSEMBLY Figure 7 Anti Blowout Design Details AN Avoid personal injury or property damage caused by the impact of a falling or tipping of a large valve Support large valves during maintenance 2 Lay the valve flat on a work bench in a secure position with the retaining ring key 18 and retaining ring screws key 19 facing up Properly secure the valve on a suitable worktable so it cannot slip twist or fall during maintenance Remove all retaining ring Screws 3 Remove the retaining ring by placing a socket head cap screw from the retaining ring into each of the two retaining ring jacking screw holes Slowly turn the screws until the retaining ring has been lifted from the valve body Remove the retaining ring to e
20. cking System for Rotary Valves Form 5305 for repair and adjustment procedures 3 For hazardous atmosphere or oxygen service valves read the following Warning and provide the bonding strap assembly mentioned below if the valve is used in an explosive atmosphere The valve shaft is not necessarily grounded when installed in a pipeline unless the shaft is electrically bonded to the valve To avoid personal injury or property damage resulting from the effects of a static electricity discharge from valve components in a hazardous atmosphere or where the process fluid is combustible electrically bond the drive shaft key 3 to the valve according to the following step Note Standard PTFE packing is composed of a partially conductive carbon filled PTFE female adaptor with PTFE V ring packing Standard graphite packing is composed of all conductive graphite ribbon packing Alternate shaft to valve body bonding is available for hazardous service areas where the standard packing is not sufficient to bond the shaft to the valve see the following step 4 Attach the bonding strap assembly key 131 figure 6 to the shaft with the clamp key 130 figure 6 5 Connect the other end of the bonding strap assembly to the valve flange cap screws A31A Valve Instruction Manual Form 5291 March 2008 ACTUATOR 130 VALVE BODY m A y al f
21. control signal to the actuator Be sure the actuator cannot suddenly open the valve Vent the power actuator loading pressure 2 Use bypass valves or completely shut off the process to isolate the valve from process pressure Relieve process pressure on both sides of the valve Drain the process media from either side of the valve CAUTION Damage to the valve disc can occur if the disc is not closed when the valve is being removed from the pipeline If necessary stroke the actuator to place the disc in the closed position while removing the valve from the pipeline 3 Loosen the flange bolting that holds the valve Make sure the valve cannot slip or twist while loosening and removing the bolting 4 Before removing the valve from the pipeline make sure the valve disc is closed Removing the valve with the disc open could cause damage to the disc piping or pipe flanges 5 After removing the valve from the pipeline move the valve to an appropriate work area Always support the valve properly 6 When valve maintenance is complete refer to the Installation procedures in this manual Seal Maintenance Note For larger valves it is possible to replace the seal key 5 while the actuator is mounted to the valve and can be accomplished by cycling the valve to 90 degrees open Key numbers in this procedure are shown in figure 9 unless otherwise indicated 1 After removing the valve from the pipeline remove the manu
22. e gaskets are centered on the gasket sealing surfaces of the flange and valve body 5 For all Valves Tighten the flange bolts in an alternating criss cross fashion to a torque value of one fourth of the final bolting torque Repeat this procedure several times increasing the torque value each time by a fourth of the final desired torque After applying the final torque value tighten each flange bolt again to allow for gasket compression Packing Adjustment and Shaft Bonding AN Personal injury could result from packing leakage Valve packing was tightened before shipment however the packing might require some readjustment to meet specific service conditions Check with your process of safety engineer for any additional measures that must be taken to protect against process media 1 For PTFE or graphite packing Tighten standard packing follower nuts only enough to prevent shaft leakage Excessive tightening of packing will accelerate wear and could produce higher rotating friction loads on the valve stem If necessary refer to the Packing Maintenance section CAUTION For non ENVIRO SEAL packing Tighten the packing follower nuts only enough to prevent shaft leakage Excessive tightening will accelerate wear of the packing and could produce higher friction loads on the valve stem 2 ENVIRO SEAL Packing Systems will not require this initial re adjustment Refer to the separate instruction manual ENVIRO SEAL Pa
23. ed For PTFE ENVIRO SEAL packing system refer to instruction manual ENVIRO SEAL Packing Systems for Rotary Valves Form 5305 see figure 10 CAUTION Never use a wrench or pliers on the keyed upper shaft key 3 A damaged shaft could cut the packing and allow leakage 1 Before loosening any parts on the valve release the pressure from the pipeline Then remove the hex nuts key 15 and lift off the packing follower key 12 2 Remove the hex jam nuts key 17 and the anti blowout flange key 10 Remove the packing follower key 12 Refer to figure 7 for details of the anti blowout protection parts The packing is now accessible 3 Use a packing extractor to remove packing Insert the corkscrew like end of the tool into the first piece of packing and pull firmly to remove the packing Repeat this process until all packing parts have been removed CAUTION Be careful when cleaning the packing box Scratches to the upper shaft key 3 or inside diameter of the packing bore might cause leakage 4 Before installing new packing clean the packing box 5 Install new packing one ring at a time using the packing follower as a driver If using split ring packing stagger the splits in the rings to avoid creating a leak path 6 Reinstall the packing parts Refer to figure 10 for the sequence of packing parts Removing the Valve 1 Disconnect any operating lines providing air pressure electric power or a
24. ee figure 4 for more information Before Installing the Valve ZA WARNING The edges of a rotating valve disc key 2 figure 9 close with a shearing cutting motion To avoid personal injury keep hands tools and other objects away from the disc while stroking the valve If the Type A31A valve is equipped with a fail open actuator cycle the valve into the fully closed position Ensure the valve cannot open during installation by using travel stops a manual actuator a constant supply pressure to the pneumatic actuator or other steps as necessary Instruction Manual Form 5291 A31A Valve March 2008 Table 3 Valve Body Data CL150 APPROXIMATE WEIGHT SHAFT DIA AT FACE TO FACE MINIMUM VALVE SIZE YOKE BEARING DIMENSION 1 D 2 Wafer Single NPS Flange mm kg 14 oo2 aa 9312 111 n7 948 16 31 75 101 6 375 2 93 9 137 9 18 38 1 114 3 418 8 139 3 178 3 20 44 45 127 0 464 1 166 9 223 6 24 57 15 154 0 580 9 255 4 350 6 wmches Pond 14 oe 858 180 1588 209 16 1 1 4 4 14 77 207 304 18 1 1 2 4 12 16 49 307 393 20 1 3 4 5 18 27 368 493 24 2 1 4 6 1 16 22 87 563 773 1 Face to face dimensions are in compliance with MSS SP68 and API 609 specifications 2 Minimum I D is the minimum pipe or flange I D required for disc swing clearance BACK UP RING GRAPHITE GASKET T SLOT RETAINING RING
25. f the valve body 9 Place the flat side of the disc on a flat surface and insert wooden blocks to raise the disc approximately 50 8 mm 2 inches from the worktable surface Then suspend the valve body over the disc so the seal T slot area is facing up Align the shaft bores through the disc with the upper shaft and lower shaft bores Lower the valve body over the disc using caution not to dislodge or damage the thrust bearings placed on the ends of the shafts 10 With the disc key 2 properly positioned in the valve body key 1 push the upper shaft and lower shaft the rest of the way through the thrust bearings and into the shaft bores in the valve disc 11 Align the holes in the shafts with the holes in the disc CAUTION To avoid damage to the tangential pins disc pins valve disc or shaft s resulting from the application of A31A Valve Instruction Manual Form 5291 March 2008 excessive force use appropriate care when driving the pins into the disc hub and shaft s Use the right tool Do not use excessive force 12 Install the appropriate tangential pins and disc pins Use 2 tangential pins that will go through the upper shaft and 1 disc pin that will go through the lower shaft 13 Refer to Packing Maintenance and the Anti Blowout Design procedures in this manual to re install the packing and anti blowout design Gasket Retainer Valves with a two piece shaft use a gasket retainer and gasket keys
26. h the seal ring inserted all the way around the body T slot now lay the O ring into the opening between the valve body and the seal ring Use the seal tool to apply pressure to the O ring and carefully tuck the O ring down into the T slot between the valve body and the seal ring Note On larger valves it may be more efficient to have someone hold down the seal ring while you push the O ring into the T slot 3 Once the seal ring and backup O ring have been fully installed into the body T slot the retaining ring gasket can be installed This gasket is a thin graphite material Punch one initial screw hole through the gasket for alignment being careful not to cause additional damage to the gasket CAUTION The retaining ring gasket is a thin graphite material When you punch one initial screw hole through the gasket for alignment be careful not to cause additional damage to the gasket 4 Install the retaining ring and align the screw holes in the retaining ring with the holes in the valve body Install the first retaining ring screw through the punched hole in the ring gasket Install the other ring screws by pushing the screws through the graphite gasket and threading them into the valve body 5 Tighten the retaining ring socket head cap screws just enough to eliminate any movement of the retaining ring Do not over tighten the retaining ring Screws AN Avoid personal injury or property damage caused by the impact
27. ight to modify or improve the designs or specifications of such products at any time without notice Neither Emerson Emerson Process Management nor any of their affiliated entities assumes responsibility for the selection use and maintenance of any product Responsibility for the selection use and maintenance of any product remains with the purchaser and end user Emerson Process Management Marshalltown lowa 50158 USA Chatham Kent ME4 4QZ UK Sao Paulo 05424 Brazil Singapore 128461 www Fisher com Fisher Controls International LLC 1991 2008 All Rights Reserved Printed in USA EME As M RSON Vianageme
28. less otherwise noted 1 Refer to the actuator instruction manual to locate the actuator travel stop that control the closed position of the valve disc key 2 When adjusting the travel stop or travel make sure that the disc is from O to 0 76 mm 0 to 0 030 inch away from the internal stop in the valve body see figure 8 This adjustment is necessary to be certain that the actuator output torque is fully absorbed by the actuator travel stop or by the actuator The internal travel stop in the valve body should not absorb any of the actuator torque CAUTION When using an actuator the actuator travel stop or actuator travel for actuators without adjustable stops must be adjusted so the disc stop in the valve does not absorb the output of the actuator Failure to limit the actuator travel as described in the Adjusting the Actuator Travel Stops or Travel steps can result in damage to the valve shaft s or other valve components 2 Before installing the valve actuator assembly in the process line cycle the valve several times to be sure the valve disc returns to the proper position Installing the Valve The maximum allowable inlet pressures for Type A314 valves are consistent with the applicable ASME pressure temperature ratings except where limited by the material capabilities as shown in table 2 or figure 3 Refer to table 5 for the quantity and size of line bolting required to install the valve in the pipeline
29. ller screw lightly to loosen the lever or actuator but hitting the screw with excessive force could also damage internal valve parts Key numbers in this procedure are shown in figure 9 unless otherwise indicated 1 Remove the valve from the pipeline Remove the actuator from the valve Avoid personal injury or property damage caused by the impact of a falling or tipping of a large valve Support large valves during maintenance CAUTION Never use a wrench pliers or similar tool to turn the upper shaft A damaged shaft can cut the packing and allow leakage Note It is not necessary to remove the retaining ring and valve seal when removing the shaft s and disc 2 Properly secure the valve on a suitable worktable So it cannot slip twist or fall during maintenance 3 Removing the Anti Blowout Design a For PTFE or Graphite Packing Remove the hex nuts key 15 and pull off the packing follower key 12 Remove the hex jam nuts key 17 and the anti blowout follower key 10 Remove the anti blowout gland key 12 Also see figure 7 b For ENVIRO SEAL Packing System Remove the hex nuts key 101 the packing 15 A31A Valve Instruction Manual Form 5291 March 2008 follower key 102 jam nuts key 17 anti blowout flange key 10 and the spring pack assembly key 103 See figure 10 4 Remove the packing from around the upper shaft 5 Remove the tangential pins or disc pins Locate the pin
30. moving the packing hardware or packing rings or when loosening the packing box pipe plug e Check with your process or safety engineer for any additional measures that must be taken to protect against process media Removing and Replacing the Actuator Refer to the appropriate actuator instruction manual for actuator removal and replacement procedures The actuator stops or travel stops must limit the rotation of the valve shaft See the CAUTION below CAUTION When using an actuator the actuator travel stop or actuator travel stop for actuators without adjustable stops must be adjusted so the disc stop in the valve does not absorb the output of the actuator Failure to limit the actuator travel can result in damage to the valve shaft s or other valve components Packing Maintenance The Type control valve is designed so the packing can be replaced without removing the valve from the process pipeline CAUTION For non ENVIRO SEAL packing Tighten the packing follower nuts only enough to prevent shaft leakage Excessive tightening will accelerate wear of the packing and could produce higher friction loads on the valve stem Instruction Manual Form 5291 March 2008 Valve Usually packing leakage can be eliminated by merely tightening the hex nuts key 15 located above the packing follower key 12 while the valve is in the pipeline However if leakage continues the packing must be replac
31. nance operations to avoid personal injury e Do not install the valve assembly where service conditions could exceed Instruction Manual Form 5291 March 2008 A31A Valve the limits given in this manual or on the nameplates e Use pressure relieving devices as required by government or accepted industry codes and good engineering practices to protect from over pressurizing the system e Check with your process or safety engineer for any additional measures that must be taken to protect against process media e If installing into an existing application also refer to the WARNING at the beginning of the Maintenance section in this instruction manual CAUTION When ordered the valve configuration and construction materials were selected to meet particular pressure temperature pressure drop and controlled fluid conditions Responsibility for the safety of process media and compatibility of valve materials rests solely with the purchaser and end user Since some body trim material combinations are limited in their pressure drop and temperature range capabilities do not apply any other conditions to the valve without first contacting your Emerson Process Management sales office 1 Isolate the control valve from the line pressure release pressure from both sides of the valve body and drain the process media from both sides of the valve If using a power actuator shut off all pressure lines to the power actuato
32. ng table 10 Anti Blowout Flange 25 DiscPin 11 Packing Flange 26 Retaining Ring Gasket 12 Packing Follower NOVEX and Phoenix Seal 13 Packing Set Standard amp NACE PTFE V Ring CL150 CL150 NPS 14 V161467X012 NPS 14 V111433X012 NPS 16 V161468X012 NPS 16 V167865X012 NPS 18 V161469X012 NPS 18 V110460X012 NPS 20 V112062X012 NPS 20 V111437X012 NPS 24 V161471X012 NPS 24 V111699X012 CL300 CL300 NPS 14 V113741X012 NPS 14 V111437X012 NPS 16 V112064X012 NPS 16 V110631X012 NPS 18 V161469X012 NPS 18 V111699X012 NPS 20 V112062X012 NPS 20 V111704X012 NPS 24 V124867X012 NPS 24 V111708X012 Oxygen Service Graphite CL150 CL150 NPS 14 V161467X022 NPS 14 V111434X012 NPS 16 V161468X022 NPS 16 V167864X012 NPS 18 V161469X022 Recommended spare parts 19 A31A Valve Instruction Manual Form 5291 March 2008 Key Description Part Number Key Description Part Number 26 Retaining Ring Gasket Oxygen Service 105 Packing Set continued CL150 continued NPS 14 13B1964X012 NPS 20 V169962X012 NPS 16 14B3647X012 NPS 24 V161471X022 NPS 18 12B7782X012 CL300 NPS 20 13B9164X012 NPS 14 V113741X022 NPS 24 14B5730X012 NPS 16 V112064X022 Use with Graphite packing NPS 18 V161469X022 CL150 NPS 20 V112062X022 NPS 14 14B3541X112 NPS 24 V124687X022 NPS 16 14B3541X122 27 Cap Screw Actuator 4 req d not shown NPS 18 14B3541X032 28 Hex Nut Actuator 4 req d not shown NPS 20 14B3541X082 29 Nameplate not shown NPS 24 14B3
33. of a falling or tipping of a large valve Support large valves during maintenance 6 To complete this step stand the valve up Support the valve securely using methods appropriate for the valve size If a vise or other clamps are being used be sure to not damage the flange gasket sealing area of the valve body 7 Manually rotate the upper shaft key 3 to turn the disc clockwise to meet the seal 8 Tap the disc with a rubber mallet to drive it against the internal travel stop When the disc makes contact with the stop manually rotate the disc counterclockwise back out of the seal to a 90 degree open position Repeat steps 7 and 8 three times Note When attaching the actuator to the valve make sure the valve disc is not in contact with the valve internal travel stop see figure 8 The valve disc should be positioned from 0 to 0 76 mm 0 to 0 030 inch away from the internal stop in the valve body see figure 8 9 Use an appropriate tool such as a feeler gauge to position the disc key 2 from 0 to 0 76 mm 0 to 0 030 inch away from the internal stop in the valve body Instruction Manual Form 5291 March 2008 Valve This adjustment is necessary to be certain that the actuator output torque is fully absorbed by the actuator travel stop or by the actuator The internal travel stop in the valve body should not absorb any of the actuator torque CAUTION When using an actuator the actuator travel
34. r release pressure from the actuator and disconnect the pressure lines from the actuator Use lock out procedures to be sure that the above measures stay in effect while you are working on the equipment Z WARNING See the WARNING at the beginning of the Maintenance section for more information before removing the valve from the pipeline 2 Install a three valve bypass around the control valve assembly if continuous operation is necessary during inspection and maintenance of the valve 3 Inspect the valve to be certain that it is free of foreign material CAUTION Damage to the disc will occur if any pipe flanges or piping connected to the valve interfere with the disc rotation path If piping flange has a smaller inner diameter than specified for schedule 80 piping measure carefully to be certain the disc rotates without interference before placing the valve into operation Minimum inside diameters for flanges or pipe mating with valves are shown in tables 3 and 4 Be certain that adjacent pipelines are free of any foreign material such as pipe scale or welding slag that could damage the valve sealing surfaces Valve Orientation The valve can be installed in any orientation however it is recommended that the valve drive shaft be horizontal and the actuator vertical as shown in figure 5 Install the valve with the high pressure shutoff side in the direction noted by the flow arrow for proper installation and s
35. r to separate instruction manuals for information covering the actuator and accessories Do not install operate or maintain a Type A31A High Performance Butterfly Valve without first being fully trained and qualified in valve actuator and accessory installation operation and maintenance and e carefully reading and understanding the contents of this manual If you have any questions about these instructions contact W9134 1 Figure 1 Type A31A Valve with Bettis Actuator and DVC6020 Digital Valve Controller your Emerson Process Management sales office before proceeding Description The valve is available in either a flangeless wafer body or a single flange lugged body design with a variety of seals and internal components The pressure assisted seal provides tight shutoff against the full class pressure range for the specific type The keyed shaft combines with a variety of handlevers handwheels pneumatic piston or spring and diaphragm actuators Maximum inlet pressure temperature ratings are consistent with CL150 and 300 Note Neither Emerson Emerson Process Management nor any of their affiliated entities assumes responsibility for the selection use and maintenance of any product Responsibility for the selection use and maintenance of any product remains with the purchaser and end user m EMERSON www Fisher com Process Management D500194X012 A31A Valve Instr
36. rly mount actuators without adjustable stops must be adjusted so the disc stop in the valve does not absorb the output of the actuator Failure to limit the actuator travel as described in the Adjusting the Actuator Travel Stops or Travel steps can result in damage to the valve shaft s or other valve components Type valve is normally shipped as part of an assembly with an actuator and other accessories the actuator and adjust valve actuator travel and all travel stops before inserting the valve into the line CAUTION Damage to the disc will occur if any pipe flanges or piping connected to the valve interfere with the disc rotation path Be certain to align the valve accurately to avoid contact flanges between the disc key 2 and the A31A Valve Instruction Manual Form 5291 March 2008 VALVE IN CLOSED POSITION DURING INSTALLATION OR REMOVAL TO PREVENT DAMAGE TO DISC SEALING AREA SHAFT HORIZONTAL FLANGE GASKETS BE SURE THESE ARE PIPE FLANGES CENTERED ALONG WITH OPENED ENOUGH TO ALLOW THE VALVE VALVE AND GASKETS TO SLIP EASILY INTO PLACE BOTTOM FLANGE BOLTS FORMING A CRADLE FOR VALVE DURING INSTALLATION FLANGE BOLTS TIGHTENED EVENLY TO PREVENT GASKET B2263 1 IL LEAKAGE Figure 4 Proper Installation Steps A5557 IL Figure 5 Properly Installed Wafer Style Valve Adjusting the Actuator Travel Stops or Travel Key number locations are shown in figure 9 un
37. s Retrofit kits include all parts required for installation of the ENVIRO SEAL packing system into existing high performance butterfly valves Retrofit kits are available for single PTFE packing See table 7 for retrofit kit included parts Note Key 103 the spring pack assembly is made up of the packing spring stack held in place by an O ring on the packing follower See table 8 for retrofit kit part numbers Table 7 Retrofit Kit Included Parts Key 10 Description Anti blowout follower Quantity 1 17 Jam nut 100 Packing stud 101 Packing nut 102 Packing flange 103 Spring pack assembly 105 Packing Set 2 mt 106 Anti extrusion washer 20 107 Packing box ring 2 2 111 Tag 112 Cable 1 Not included in graphite packing kit 2 Only 1 req d for NPS 18 CL300 NPS 20 CL150 and NPS 24 CL150 Instruction Manual Form 5291 March 2008 A31A Valve Repair Kits PTFE Repair kits include a single PTFE packing set and anti extrusion washers Graphite packing sets include graphite packing rings and carbon anti extrusion rings See table 8 for PTFE repair kit part numbers Table 8 Retrofit and Repair Kit Part Numbers SHAFT RETROFIT KITS REPAIR KITS VALVE SIZE NPS PRESSURE RATING 1 2 mm Inch PTFE PTFE T CL150 34 9 1 3 8 RRTYXRT059
38. s key 25 in the upper shaft key 3 and the pin in the lower shaft key 4 if the valve hasa two piece shaft a If a maintenance kit is available use the pin extractor to remove the disc pins Select the correct size pin extractor tip with screws of proper thread size to match the thread size in the disc pins If you do not have a kit see steps c and d below b Screw the pin extractor tip into the pin as far as possible With an upward straight sliding motion pull out the pin Repeat the same procedure for the other pins C You can use a threaded rod with an appropriate spacer tube and nut as an extractor tool If you use a threaded rod choose a rod with threads that fit the inside thread of the pins The rod should extend several inches above the disc when it is screwed into a pin d After screwing the rod into the pin slide the spacer over the rod and pin Thread a nut onto the rod and tighten it As you tighten the nut the nut will drive the spacer against the disc The increasing force will draw the pin from the disc 6 The gasket retainer key 20 on the side of the valve opposite the upper shaft must be removed before removing the lower shaft Remove the hex head bolts key 23 and lockwashers key 22 from the gasket retainer and remove the gasket retainer and gasket key 21 to expose the end of the lower shaft 7 Before removing the lower shaft key 4 be sure the valve disc is properly supported Pull
39. s procedure are shown in figure 9 unless otherwise indicated 1 Properly secure the valve on a suitable worktable So it cannot slip twist or fall during maintenance Be prepared to support the valve disc Allow for easy access to the valve body bore drive shaft bearing bore and follower shaft bearing bore Instruction Manual Form 5291 March 2008 Valve AN Avoid personal injury or property damage caused by the impact of a falling or tipping of a large valve Support large valves during maintenance Note Replacement disc and shafts are provided as a matched set and both should be replaced at the same time 2 Inspect all parts removed from the valve for wear or damage Replace any worn or damaged parts Clean the valve body and all parts to be installed with an appropriate solvent or degreaser Note When installing the bearings apply lubricant to the outside diameter of the bearing for ease of installation CAUTION Premature valve failure and loss of process control may result if bearings are improperly installed or are damaged during installation 3 When installing the lower bearings key 4 insert one or more bearings into the lower shaft bearing bore so it is flush with the body bore The number of bearings required changes with valve size and construction Two bearings are required in the upper shaft and two bearings in the lower shaft If using an NPS 14 CL150 valve with metal bearings
40. stop or actuator travel for actuators without adjustable stops must be adjusted so the disc stop in the valve does not absorb the output of the actuator Failure to limit the actuator travel as described in the Adjusting the Actuator Travel Stops or Travel steps can result in damage to the valve shaft s or other valve components 10 The final seating of the retaining ring screws can now be done For the screw torque values refer to table 6 Anti Blowout Design Packing Valve Shaft s Disc and Bearing Maintenance Note The valve has a two piece shaft In these procedures the drive shaft with keyed end is called the upper shaft key 3 The shaft opposite the upper shaft is called the lower follower shaft key 4 CAUTION When using an actuator the actuator travel stop or actuator travel adjustment for actuators without adjustable stops must be adjusted so the disc stop in the valve does not absorb the output of the actuator Failure to limit the actuator travel as described in the next step can result in damage to the valve shaft s or other valve components CAUTION When removing the actuator from the valve do not use a hammer or similar tool to drive the lever off the valve shaft Driving the lever or actuator off the valve shaft could damage the valve internal parts If necessary use a wheel puller to remove the lever or actuator from the valve shaft It is okay to tap the wheel pu
41. the lower shaft from the valve body Use a shaft extractor screwed into the puller hole in the end of the lower shaft 8 Before removing the upper shaft key 3 be sure the valve disc is properly supported Pull out the upper shaft key 3 by hand pulling or by using a shaft extractor screwed into the end of the shaft CAUTION To avoid damage to the disc seal and T slot area do not force the disc past the seal or T slot area Remove the disc from the opposite side of the valve body Note Both the upper shaft and the lower shaft have a thrust bearing key 24 between the disc and the bearings key 7 The thrust bearing is located outside of the bearing bore which holds the bearings Use care when removing the valve disc to avoid loss of or damage to the thrust bearings 9 After removing the shaft s remove the disc Do not force the disc past the seal or T slot area Collect the thrust bearings 10 Remove the bearings key 7 Using a suitable punch or puller drive or pull the bearings into the valve body bore from the upper shaft bearing bore Remove the bearing from the lower shaft bearing bore 11 Inspect the valve body bore bearings bearing bores and packing box for damage Installing the Two Piece Shaft Note In these instructions the drive shaft with keyed end is called the upper shaft key 3 The shaft opposite the upper shaft is called the lower follower shaft key 4 Key numbers in thi
42. uction Manual Form 5291 March 2008 Table 1 Specifications Valve Size and End Connection Styles NPS Bi 14 16 18 20 and 24 valves and in wafer style flangeless or single flange lugged with raised face flanges CL150 or 300 Maximum Pressure 1 Consistent with CL150 and 300 pressure temperature ratings per ASME B16 34 unless further restricted by values given in figure 2 Shutoff Classification Per ANSI FCI 70 2 and IEC 60534 4 or MSS SP 61 Standard Soft Seal Bidirectional shutoff Class VI bubble tight NOVEX Seal Unidirectional shutoff MSS SP 61 reverse flow direction only Class VI optional Phoenix III Seal Bidirectional shutoff Class bubble tight Phoenix III Seal for Fire Tested Applications Unidirectional shutoff Class VI reverse flow direction only bubble tight Fire Tested per API 607 Rev 4 Available Seal Configurations Standard Constructions See figure 3 and table 2 Standard Construction Materials See table 2 Material Temperature Capabilities See table 2 Flow Characteristic Modified equal percentage Flow Coefficients See Catalog 12 and bulletin 21 1 A31A Flow Coefficient Ratio 2 100 to 1 Noise Levels See Catalog 12 for sound pressure level prediction Valve In Line Position Shaft horizontal See figure 4 Valve Actuator Action With diaphragm or piston rotary actuator field reversible between lll push down to close
43. ue to tighten the cap screws according to standard procedures Do not fully torque screws at this time Final tightening of screws is accomplished in step 7 of this procedure A31A Valve Instruction Manual Form 5291 March 2008 6 Manually rotate the upper shaft clockwise 180 degrees to return the disc key 2 to its closed position 7 The final seating of the retaining ring cap screws can now be done For the screw torque values refer to table 6 The seal is now fully installed Refer to the Installation procedures in this manual NOVEX Phoenix and or Phoenix III Fire Tested Seals A maintenance kit with installation tools is available through your Emerson Process Management sales office 1 Locate the replacement seal ring key 5 and note the shape of the ring The ring is wider across one edge diameter and narrower across the other edge diameter as shown in figure 8 Around the outside circumference is one wide groove Install the seal ring key 5 in the valve body by first placing the wider outside diameter of the seal ring into the T slot area of the valve body which is shown in figure 3 The backup key 6 for the Phoenix seal will have to be installed after placement of the seal ring in the valve body using a blunt end screwdriver or the seal installation tool in the maintenance kit Do not use the screwdriver or seal tool directly on the metal seat Use tools on the O ring only 2 Wit
44. xpose the seal in the T slot area of the valve body Note The Type A31A is available with different seal designs and components See figure 3 to identify the specific seal design Instruction Manual Form 5291 March 2008 A31A Valve Table 6 Torque Values for Fasteners FASTENER NOMINAL RETAINING RING SCREWS GASKET RETAINING BOLTS SIZE Inelbs Nem Inelbs 10 4 6 41 4 0 5 1 4 11 100 9 2 81 5 16 25 220 19 167 3 8 45 400 33 295 ftelbs ftelbs 7 16 72 53 53 39 1 2 112 83 80 59 9 16 161 119 117 86 5 8 225 166 161 119 3 4 401 296 286 210 7 8 651 480 447 330 1 976 720 651 480 1 1 8 1356 1000 837 617 Process Management sales office Note These values are based upon standard materials 566286 06600 screws and ASTM A193GRB6 bolts For other special fastener materials please contact your Emerson LARGEST OUTSIDE DIAMETER KEY 5 AU b d INTERNAL b TRAVEL STOP A5251 1 IL Figure 8 Typical Seal Installation 4 Insert a regular screw driver or other similar tool under the top edge of seal and gently pry the seal out of the T slot area in the valve body Take care not to damage the seal or T slot area of the valve body After the seal has been removed clean the T slot area retaining ring and if required polish the disc key 2 thoroughly with fine steel wool or other appropriate material To install a new seal O ring key 6
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