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GE gea_19369a Technical Specifications

1. maintenance chapter paragraph 5 1 1 or 5 1 2 Figure 11 Tightening sequence of nuts 8 41005 Series Cage Guided Balanced Globe Valve Tech Spec September 2013 15 7 Actuator Caution for coupling operations of actuators on valves it is necessary as a preliminary e to position the plug 15 on its seat ring 13 In no case one should not turn the plug on its seat to avoid any deterioration of tightness seat e connect a temporary air supply line to the actuator 7 1 Coupling of Actuator Type 88 No 6 Figure 15 A Tightly screw the two hex nuts 1 onto the plug stem B Push down the actuator and at the same time screw on the yoke nut 33 then the bottom stem connector 2 As soon as it becomes possible insert the valve stem into the actuator stem The stem must be inserted far enough so that when there is no air in the actuator the valve plug does not touch the seat C Tighten the yoke nut D Unscrew the valve plug stem until the valve plug comes into contact with the seat Do not turn the valve plug on the seat as this could damage the sealing surfaces E Supply air to the actuator until the stem has travelled at least 10 mm F Unscrew the plug stem the number of turns N1 specified in Figure 13 Caution in the case of 41405 valves use the N2 valve so ensure tightness of the pilot plug G Screw the 2 nuts 1 as far as they will go and check that operation is correct H Use
2. 1 281 671 1640 Phone 91 22 8354790 Fax 1 281 671 1735 Fax 91 22 8354791 SINGAPORE Phone 65 6861 6100 New Delhi Fax 65 6861 7172 Phone 91 11 2 6164175 Fax 91 11 5 1659635 Masoneilan is a registered trademark of the General Electric Company Other company names and product names used in this document are the registered trademarks or trademarks of their respective owners 2013 General Electric Company All rights reserved GEA19369A 09 2013
3. A diameter pin dia C n Valve plug stem diameter B mm in 12 7 1 2 15 87 5 8 19 05 3 4 25 4 1 0 31 75 1 1 4 38 1 1 1 2 Two flats of wrench size E Plug shank i houldered stem x oi te iis Standard stem Figure 7 6 1 2 Tightening of the plug stem To carry out this operation the valve plug must be prevented from moving by holding the plug shank with an appropriate tool Screw two nuts on to the end of the new plug stem and lock them together Screw the valve plug stem solidly into the plug checking that the reference mark is level with the end of the plug shank If the stem has flats apply a torque T using a wrench of dimension E see Figure 7 6 1 3 Drilling the pin hole Figures 7 and 8 Note For this operation it is recommended clamping the valve plug stem assembly by the plug shank to avoid damaging the guiding surfaces particular care must be taken so that the pin hole goes through the valve plug axis If the valve plug is new drill a hole of diameter C at a distance D from the end of the valve plug choose the diameter C from the table according to the type of pin used metric or Anglo Saxon pin If the hole is already drilled in the valve plug use the hole as a guide to drill through the valve plug stem Torque T Distance E Nola X Shouldered stem Shouldered stem C so ens ronsa
4. screwing until they come into contact with the hex nut 1 D Push down the actuator and tighten the yoke nut E Supply the actuator with air at the initial pressure indicated on the spring scale F Position the stem connector assembly at distance xX indicated in Figure 12 G Use the pointer 7 to set the travel scale 9 to the open valve position H Supply the actuator with air at a high enough pressure to obtain a travel equal to the nominal travel of the valve Caution in the case of the 41405 valves reduce the travel by value A indicated in Figure 14 With the plug correctly positioned on the seat unscrew the bottom stem connector assembly until it comes into contact with the top stem connector Tighten the socket head cap screws 5 nuts 1 and 32 and check that operation is correct uyn uyn J Shut off the supply pressure in the actuator and use Actuator Travel Actuator 87 Actuator 88 the pointer 7 to set the travel scale 9 to the closed No valve position and check that operation is correct w oe a0 sie 117 3 4 62 178 3 7 02 Figure 12 Position of top stem connector 2500 l EA 12 7 4 Coupling of Actuator Type 88 andie 25 4 No 10 16 and 23 CEE 12 and 16 2500 Figure 15 ae to 1500 Plug stem diameters class 150 or 12 7 se 2500 1 2 2 900 to 2500 150to 1500 45 87 A Tightly screw hex nut 1 onto the plug stem 150 to 900 B Tightly scre
5. stop valve on each side of the control valve and a manually operated throttling valve in the by pass line 6 3 3 Heat Insulation In case of heat insulated installation do not insulate the valve bonnet and take protection measures related to personal safety 3 4 Hydraulic Test and Cleaning of Lines During this operation the control valve must not be used as an isolating valve This means that the valve must always be opened before carrying out pressure tests in the process line cleaning of pipes etc otherwise equipment damages or destroying of seal rings could result 3 5 Flow Direction The valve must be installed so that the controlled substance will flow through the valve in the direction indicated by the flow arrow located on the body 4 Disassembly 4 1 Removal of Actuator Figures 15 and 16 Access to the internal components of the body should be accomplished with the actuator removed To carry out this operation follow the instructions below and refer to the specific actuator instructions reference ER 8788 for a type 87 88 actuator and ER 30004 E for the type 37 38 actuator 4 1 1 Disconnection of instruments Disconnect all mechanical couplings between the positioner and the other instruments on the one hand and the valve stem actuator stem coupling on the other hand 4 1 2 Plug stems screwed into the actuator stem In the case of air to retract actuators apply sufficient air pressure on the diap
6. table below Carbon PTFE and pure PTFE packing box Number of rings with side connection on top of under packing packing spacer spacer without side N D mm in l connection 80 100 3 4 Figure 3 E Put the follower 23 and the packing flange 4 back on F Screw and tighten the packing flange nuts 3 without cramming the packing rings G Put the valve back into service and check for tightness Tighten packing flange nuts 3 as required 5 1 2 Graphite packing ring To carry out this operation the valve plug stem must be removed See chapter on actuator disassembly A Loosen and remove packing flange nuts 3 B Remove packing flange 4 and packing follower 23 from the plug stem C By means of a puller remove packing rings 6 insuring not to damage the sealing surface of packing box or plug stem D Replace new packing set 6 first one back up ring Carbon Graphite braided ring then expanded graphite rings smooth rings at last one other braided back up ring it is important to press the rings down one at a time in the packing box Number of packing set Number of rings 80 100 1 3 p 4 pa foe fa 150 to 600 6 to 24 Figure 4 E Put the follower 23 and packing flange 4 back on F Screw and moderately tighten the packing flange nuts 3 G Reassemble the valve plug stem see chapter on actuator re assembly H Open and close the val
7. the initial angle 5 2 3 Gasket seating surfaces Gasket seating surface must be free of dents scratches and corrosion otherwise they will need to be repaired 5 2 4 Seal rings and gaskets Spiral wound gaskets 10 14 and 36 must always be changed after disassembly Seal rings 11A 11C or 11E can be reused if they are free of scratches erosion and corrosion 5 2 5 Valve plug valve plug stem If the valve plug has to be changed then the stem must also be completely changed to guarantee correct pinning of the assembly If only the valve plug stem has to be changed then the valve plug can be reused 6 Valve Reassembly 6 1 Pinning the Valve Plug Stem The valve plug 15 and stem 1 assembly consists of a rod threaded into the valve plug and pinned in place If the valve plug 15 or the auxiliary pilot plug 20 in the case of a 41405 valve needs to be replaced it is recommended using a new stem The hole of the Original pin in an old stem often prevents satisfactory results being obtained and can seriously impair the mechanical strength of the stem valve assembly Assembly is carried out as follows 6 1 1 Reference marking on the valve plug stem Make a reference mark on the valve plug stem at a distance X Figures 7 and 8 equivalent to the stem recess in the valve plug Note For shouldered plug stems with two flats the above marking is unnecessary Metric Anglo Diameter pin Saxon
8. the pointer 7 to set the travel scale 9 to the closed valve position 7 2 Coupling of Actuator Type 87 No 6 Figure 15 A Tightly screw the two hex nuts 1 onto the plug stem B Push down the actuator and at the same time screw on the yoke nut 33 then the bottom stem connector 2 As soon as it becomes possible insert the valve stem into the actuator stem The stem must be inserted far enough so that when there is air in the actuator the valve plug does not touch the seat C Tighten the yoke nut 16 D Supply air to the actuator at the initial pressure of spring range E Use the pointer 7 to set the travel scale 9 to the open valve position F Supply the actuator with air at a high enough pressure to obtain a travel equal to the nominal travel of the valve Caution in the case of the 41405 valves reduce the travel by value A indicated in Figure 14 G Unscrew the plug stem until the valve plug is in contact with the seat Do not turn the valve plug on the seat as this could damage the sealing surfaces H Screw the 2 nuts 1 as far as they will go and check that operation is correct 7 3 Coupling of Actuator Type 87 No 10 16 and 23 Figure 15 A Tightly screw hex nut 1 onto the plug stem B Screw the top stem connector assembly tightly onto the actuator stem C Push down the actuator and at the same time screw on the yoke nut 33 then the bottom stem connector assembly by
9. 16 A Push down on the plug stem 1 until the plug rests is seated B Attach the actuator to the valve bonnet with the yoke nut 33 or attachment screws Apply a sufficient pressure to the diaphragm to extend the actuator stem by the normal valve travel for valves 41305 41505 41605 and 41905 and the travel minus the value of A in Figure 14 for 41405 valves C Assemble the two parts of the stem connector 51 and the point 58 The number of threads inside the stem connection must be approximately equal for each stem Tighten screw s 52 D Check that the travel of the actuator stem corresponds to the normal travel of the valve and that the closed position is obtained for the maximum spring range indicated on the serial plate E Shut off the air pressure Use the pointer 58 to set the travel scale 56 The pointer 58 must indicate open when the air pressure is off 18 7 6 Coupling of Air to Retract Actuator Type 38 Figure 16 A Connect a temporary air supply line to the actuator Apply sufficient pressure to the diaphragm to retract the actuator stem completely Attach the actuator to the valve bonnet with the yoke nut 33 or attachment screws B Shut off the air pressure completely Increase the air pressure to retract the actuator stem by the value of a in Figure 13 Caution For 41405 valves use value a1 of Figure 14 C Assemble the two stem connectors 51 and the pointer 58 The n
10. 2 Open 53 Close With pilot With seal ring Multispring _ With PTFE 87 Open seal 88 Close l Graphite seal ring Undefined Standard cage Linear Lo dB anticavitation single Body S A 5 Digits Design Series Optional Config Trim Type Characteristic A Angle Body EB Extension bonnet Standard cage Equal C Cryogenic extension bonnet percentage stage Linear Lo dB single stage with diffuser Linear Lo dB double stage Linear VRT stack TYPE S Linear VRT stack partial Type S modified percentage VRT cage TYPE C Linear _ Anticavitation double stage Linear 1 Note This instruction manual describes all the standard options in the 41005 valve series To satisfy the particular conditions of your application GE may have had to develop a special option which is the subject of an additional clause to this instruction manual In this case the instructions given in the additional clause always take precedence over the general instructions 3 Installation 3 1 Cleanness of Piping Before installing the valve in the line clean piping and valve of all foreign material such as welding chips scale oil grease or dirt Gasket surfaces must be thoroughly cleaned to insure leak free joints 3 2 Isolating By Pass Valve To allow for in line inspection maintenance and removal of the valve without service interruption provide a manually operated
11. 9 081 7892 111 Phone 27 11 452 1550 Phone 61 7 3001 4319 Fax 39 081 7892 208 Fax 27 11 452 6542 Fax 61 7 3001 4399 JAPAN SOUTH amp CENTRAL Perth Chiba AMERICA AND THE CARIBBEAN Phone 61 8 6595 7018 Phone 81 43 297 9222 Phone 55 12 2134 1201 Fax 61 8 6595 7299 Fax 81 43 299 1115 Fax 55 12 2134 1238 Melbourne KOREA SPAIN Phone 61 3 8807 6002 Phone 82 2 22 74 0748 Phone 34 93 652 6430 Fax 61 3 8807 6577 Fax 82 2 22 74 0794 Fax 34 93 652 6444 BELGIUM MALAYSIA UNITED ARAB EMIRATES Phone 32 2 344 0970 Phone 60 3 2161 0322 Phone 971 4 8991 777 Fax 32 2 344 1123 Fax 60 3 2163 6312 Fax 971 4 8991 778 BRAZIL MEXICO UNITED KINGDOM Phone 55 11 2146 3600 Phone 52 5 310 9863 Wooburn Green Fax 55 11 2146 3610 Fax 52 5 310 5584 Phone 44 1628 536300 Fax 44 1628 536319 CHINA THE NETHERLANDS Phone 86 10 8486 4515 Phone 0031 15 3808666 UNITED STATES Fax 86 10 8486 5305 Fax 0031 18 1641438 Massachusetts Phone 1 508 586 4600 FRANCE RUSSIA Fax 1 508 427 8971 Courbevoie Veliky Novgorod Phone 33 1 4904 9000 Phone 7 8162 55 7898 Corpus Christi Texas Fax 33 1 4904 9010 Fax 7 8162 55 7921 Phone 1 361 881 8182 Fax 1 361 881 8246 GERMANY Moscow Ratingen Phone 7 495 585 1276 Deer Park Texas Phone 49 2102 108 0 Fax 7 495 585 1279 Phone 1 281 884 1000 Fax 49 2102 108 111 Fax 1 281 884 1010 SAUDI ARABIA INDIA Phone 966 3 341 0278 Houston Texas Mumbai Fax 966 3 341 7624 Phone
12. Technical Specifications GE Oil amp Gas eee ih 41005 Series Masoneilan Cage Guided Balanced Globe Valve Tech Spec imagination at work 2 GEOil amp Gas Contents T GONerGlcccanaceae cerdens d08oonecuue esa oneeesandeddumecaus bit egseeentedesewennaee 4 LZ SeUGIPIOle Candenanenennisiniadetneeeadeeuen sate bebe VE Ee COR AOR cede EE ERER TA TEE EES 4 L3 Pel ales Sei VCs 4 cies espir EERE nisi huea das 4d nuness ne npehe ess Sasa arene a eer iean cane 4 BA OO Sl CS epee ce wie ee ce oes oe eee ee ee eer ee i oie ca es ed bere ea eee eee ee soe ee ee eee 4 1 5 Actuator and Other Accessories 5nd ctcayid ceeanenvy eho dee Abdo tens Ho Rhone bree ene eays 4 2 Numbering System 0 ccc ccc ccc cc ce cece teen eee e eee e eee e eee eeeteeeeeees 5 3 WISECNGQUOM s 55 00 ec een ae ce eee oe ee een EEN EATE EN owe ee ee EEEN 6 al 210 18 oso i az 2 8 16 nee nn ee nee ee eee oe 6 3e ISOIEING By POSS VANO eis cseung et EEEE E Saco gba ndy wy are ernie EEEE e wo erereeeaeeee 6 BO WO SUIGVION sane eae ea oe oe eases eee eo be eae oo oo Sse ee eo co eo ee ee 6 3 4 Hydraulic Test and Cleaning of LINES 23 3305 d5ckeavsedadsaceranncdireseehatecsdedeakuiaesesi aise ieoresdees 6 So HOW DO aR EEA A E AEE ET 6 A A B e EEA e E E E E E EE E E A N EEE paeue xe ue 7 41 Removalo ACI IUCR tne nanvssaqy He oe Erkend roAa AE cand Hi we EEEE EE ARTAR EET EIEEE RESSA RnR 7 4 2 Opening of the Pressurized Chamber os occu sawduscoue d
13. adad cune kevdelyarene cones boar antwnrgdaideuonmeveesess 16 Ge Coupling ol Actuator Type 8 NO WG ancnacc eee ea tus og reiris inini EESE EEE mrteneenederat eee ae sed 16 7 3 Coupling of Actuator Type 87 NO 10 16 and 23 odes cc wececssesteadsinwseneee hiwasGes ss avesndeneeeus ve eet 16 7 4 Coupling of Actuator Type 88 No 10 16 and 23 a cetas cans eras eae deceteeunas rrur enue ea decent ues eens 17 7 5 Coupling of Air to Extend Actuator Type 37 asuasnsnuununuurunrnarn ruarua r urr r rarnana ranna 18 7 6 Coupling of Air to Retract Actuator Type 38 cs acdc chen ve cece eae eebenda baw eetau ke Av ded pebdeden rren 18 L Other TCS OF Pneumatic FC RU ogre tee ee eGo ge ued Eee DEEDE sear ecadoneeiensead et 18 Body Sub ASSOMDNY acc ueuadantedarva noua seed Gonegns teen ne sues ond betenoueeeedaweneuens 21 1 General Important This document contains all the instructions required for the installation operation and maintenance of the equipment Regular maintenance strict observance of these instructions and the use of manufacturer s replacement parts will guarantee optimum operation and reduce maintenance costs 1 1 Scope The following instructions are designed to guide the user through the installation and maintenance of the 41005 series valves for all sizes and all pressure classes 1 2 Serial Plate The serial plate is usually fixed to the side of the actuator yoke It indicates amongst other things the type of valve
14. et has a side connection 4 3 Disassembly of Valve Plug Stem The valve plug stem is screwed and pinned into the valve plug 15 To dismount the stem the valve plug must be held as indicated below taking care not to damage the guiding surfaces the plug stem pin 9 is then removed By means of flats or using a nut and counter nut on the end of the stem unscrew the stem taking care not to apply a bending moment which could deform it Cylindrical machining diameter of the jaw plug shank diameter Dia A pl hag Tight only on y Soft metal this no guiding 4 vise draw surface Stop pin amp integrated in vise jaw and Do not tight inserted into a on the plug skirt plug hole Figure 1 8 4 4 Disassembly of the Auxiliary Pilot Plug When the valve is of the 41405 type In the case of 50 80 or 100 mm 2 3 or 4 valves Figure 17 Exert a sufficient force on the auxiliary pilot plug 20 to compress the spring washers 12 The retaining ring 19 can then be removed releasing the auxiliary pilot plug and spring washers In the case of 150 to 400 mm 6 to 16 valves Figure 17 To carry out this operation safely screws of the diameter and length indicated in the table in Figure 2 must be used Thread the socket head cap screws through the holes in the auxiliary pilot plug 20 Tighten until the retainer ring 19 can be removed Loosen the screws gradually Remove the auxiliary p
15. hragm to retract the stem completely Loosen the counter nut unscrew the stem Caution During this operation make sure that the plug does not turn when it is seated If the plug travel is very small and there is a large amount of plug stem inside the actuator it may be necessary to remove the yoke nut and lift the actuator so that the plug is not touching the seat 4 1 3 Stems attached with a stem connector In the case of air to retract actuators apply sufficient air pressure on the diaphragm to retract the stem completely Loosen the screws and remove the stem connector 4 1 4 Removal of actuator Disconnect all the ingoing and outgoing air and electrical connections from the actuator Loosen the yoke nut or attachment screws and lift the actuator making sure that the concentricity and or the thread of the bonnet is not damaged 4 2 Opening of the Pressurized Chamber Figures 17 18 and 19 Danger Prior to disassembly vent the process pressure and isolate the valve if necessary Note The valve must always be reassembled with new packing rings and gaskets before disassembly make sure that the appropriate parts are available A Remove the packing flange nuts 3 then remove the packing flange 4 and the packing follower 23 B Check that the exposed part of the valve plug stem 1 is clean enough for the bonnet 7 to be removed easily C Remove the body stud nuts 8 D By means of a pad eye secured ins
16. ilot plug and the spring 12 Valve size Pilot Dismounting Screws Size piso 6 2 5 225 1 4 20UNC 2A mm in z0 e 2 70 275 so az s fins Paoo is 3s ess 25 Figure 2 5 Maintenance Repair 5 1 Packing Box Tightness of the packing box is obtained by compression of the packing 6 Compression must be achieved by evenly tightening the packing flange nuts 3 on the packing flange 4 Periodical retightening of the packing flange nuts is required to maintain tightness Make sure that the packing is not over tightened as this could prevent smooth operation of the valve If a leak persists after the packing has been compressed to a maximum the packing needs to be changed A packing spacer 5 is only mounted when the bonnet has a side connection 5 1 1 Carbon PTFE and pure PTFE packing rings Carbon PTFE and pure PTFE packing rings are cut in such a way that they can be replaced without having to separate the valve plug stem from the actuator stem A Unscrew and remove the packing flange nuts 3 B Lift the packing flange 4 and packing follower 23 up along the valve stem C By means of a puller remove the packing 6 and packing spacer 5 taking care not to damage the sealing surface of the packing box lantern or the valve plug stem D Replace the packing rings with the cut in each ring placed about 120 from the next pressing them down one at a time and respecting the
17. larsnaa sisal som 10u19 2s0usu eo an sez menjaj onsa T soso ME 1 500 1100 lt Standard stem Shouldered stem Figure 8 6 1 4 Pinning By means of a hammer introduce the pin into the hole Complete the pinning operation taking care to ensure that the pin is recessed by the same amount at both sides Using a ball tooling and hammer caulk the pin hole edge of the plug Place the assembly in the soft jaw chuck of a lathe to check alignment of the two parts correct any alignment defects 6 2 Assembly of Ring or Spring Energized Seal Ring 6 2 1 41305 valve Figures 9 18 and 19 These valves have a spring energized seal rings composed of a PTFE based jacket maintained expanding by a spring To insert the ring into the plug groove e Lubricate the entry chamber e Place the ring over the conical top of the plug so that the lips of the ring face to the pressure see Figure 9 Caution to the assembly direction of the radial ring 11F on the plug see Figure 9 Flow Tends to Open the open side is in the top Flow Tends to Close the open side is in the lower part Slip to the ring into the groove without spinning it as shown in Figure 9 This operation can be facilitated by heating the ring The temperature of the ring should not exceed 150 C Keep the ring retained until it returns to room temperature and goes back in place within the groove Clamping with a collar SERFLEX type will help t
18. o properly Poci the ring FTO Pushing Preen Pushing W Ra Figure 9 12 6 2 2 41405 and 41505 valves Figures 17 and 19 These valves are equipped with metal rings the inner ring has a straight cut while the outer ring has a staggered cut To insert the rings into the cage groove open the rings slightly by hand and slide them one after the other along the plug making sure that the parts are not damage Note The cuts in the outer and inner rings are to be placed at about 180 from each other 6 2 3 41605 valve Figure 19 These valves are equipped with an inner elastomeric ring and a PTFE gasket Insert the elastomeric ring 11D in the groove Place the PTFE gasket 11C at a temperature of 100 C boiling water to 160 C for a few minutes to facilitate insertion then slide along the plug until it slips into the groove For optimum insertion of the ring a Serflex type ring compressor can be used to compress the ring in the groove for several minutes 6 2 4 41905 valve Figure 19 These valves are equipped with rings the inner metal ring has a straight cut and the outer ring is made of graphite The new graphite seal ring 11A is supplied in the form of a closed ring in which a notch must be cut before being inserted Caution Graphite seal rings are fragile and the following operations must be carried out very carefully Using a sharp blade carry out two V notches on the two oppo
19. ouched up on a lathe 10 However not more than 0 25 mm 0 010 of metal must be removed in the case of a 50 80 or 100 mm 2 3 or 4 valve or more than 0 4 mm 0 015 in the case of a 150 to 400 mm 6 to 16 valve Make sure that the seating angle indicated in Figure 6 is respected If a slight defect exists on any of the above seating surfaces lapping can be envisaged in which case the following must be respected e Spread a fine layer of high quality sealing compound on the seating surface e Put the seat ring 13 in the body noting the angle e In the case of 41305 41505 41605 and 41905 valves put the cage 16 on the seat ring e In case of 41375 valves put the stack 48 on the seat ring and the cage 16 on the stack e In the case of 41405 valves assemble the valve plug cage and stem 15 16 1 e Incase of 41305 41505 41605 41375 and 41905 assemble the valve plug 15 and stem 1 e Assemble the bonnet 7 and its guide bushing 22 e Place an appropriate tool on the valve plug stem 1 to turn it e Lap by slightly rotating the valve plug or the auxiliary pilot plug in alternative directions After several rotations lift the valve plug turn it 90 and start again e Lapping can be repeated but must be limited as much as possible so that the seat remains sufficiently narrow to guarantee tightness e Disassemble the parts clean them and put them back respecting
20. perfect alignment of the seat ring and the valve plug a force must be applied to the plug stem during tightening of the bonnet which results in correct relative positioning of the two parts The force can be applied with the pneumatic actuator as follows Place the actuator on the valve bonnet 7 by means of the yoke nut 33 or attachment screws and connect the valve plug stem to the actuator stem See chapter on actuators for installation instructions Caution During this operation make sure that the plug does not turn when it is seated If the plug travel is very small and there is a large amount of plug stem inside the actuator it may be necessary to remove the yoke nut and lift the actuator so that the plug is not touching the seat Align the internal parts as follows In the case of air to extend actuators supply air to the actuator at the maximum pressure indicated on the serial plate and in the case of spring to extend actuators do not supply air to the actuator so that the optimum positioning of the valve plug and seat can be obtained Single bolting circle Evenly tighten the nuts 8 by applying the torque indicated in table in Figure 10 and the tightening sequence in Figure 11 Double bolting circle Beginning by the internal nuts manually screw all the bolts Screw the internal nuts in order indicated by the Figure 2 and screw them by successive uniform and progressive levels During the tightening make s
21. press the springs so that the retaining ring can be inserted in the groove of the main plug 6 3 2 Assembly of cage Place the cage over the valve plug assembly via the top of the plug stem When doing so take particular care to position the ring correctly 6 4 Assembly of the Parts Inside the Valve Body Figures 17 18 and 19 Proceed as follows After checking that the surfaces are perfectly clean place the seat gasket 14 in the valve body making sure that it is centered as well as possible Mount the seat ring or the diffuser seat 13 Mount The cage 16 for 41305 41605 and 41905 valves The cage plug stem assembly for 41405 valves The STACK assembly making sure that the face with the smallest number of holes is in contact with the seat ring and cage 16 for 41375 valves Caution for the double cage assembly carry out the following operations Put the inner cage 16 upside down Encase the outer cage 75 on the inner cage maintain them together with the two pins 76 In the case of valves other than 41405 valves insert the valve plug stem ring assembly into the cage taking particular care as it goes past the ring or spring energized seal ring In the case of valves with a N D less than 150 6 place the body cage gasket in the valve body making sure that it is centered as well as possible For valve sizes 150 to 400 mm 6 to 16 insert either the cage gasket 24 or the flat
22. site faces Hold the ring on either side of the notch between the thumb and index and bend until it breaks Using a very fine flle adjust each end of the ring so that its external circumference corresponds to the internal circumference of the inside diameter of the cage 16 To adjust the length of the ring correctly insert the new graphite ring into the cage with the ring against the inner wall of the hole in the cage allowing minimum play between the two ends of the ring To insert the inner ring then the graphite ring into the cage groove slightly open the rings by hand and slide them one after the other along the plug taking care not to damage the parts Note The cuts on each ring are to be placed at about 180 from each other 6 2 5 41375 high temperature valve 232 C to 316 C Figure 19 These valves are equipped with a seal ring composed of a jacket and a metallic spring and two backup rings 11G Assemble the different parts as shown in Figure 19 starting by the backup rings Caution put these parts as shown in Figure 19 the angle of 90 of the backup ring in front of the extrusion gap between cage and plug 6 3 41405 Valve Plug and Cage Assembly Figure 17 6 3 1 Assembly of valve plug and auxiliary pilot plug Assemble as appropriate the flat spring or the coil springs then the valve plug plug stem assembly Using the same tools as those used for disassembly see chapter Disassembly com
23. so nueeawasenes doesent bias eeuteerewssso reese neat at 7 4 amp 3 Disassembly OF VdIVe Plug SIC ssrirrrssisiviricerisirsrerri tad trit Maasiehe wate tunntaepeudiwacsaedtaunes 8 4 4 Disassembly of the Auxiliary Pilot PING acc dns dc ececctadh ton dena ak aie eee wine ohana dhe nananana rrarena rrena 8 5 MGIMNCNONCe REDO rirerr era eee rie on EEEE no we ecdues Gebweneasaseoe ened 9 Ol POKO BOX e ccc cc aceoers ness neato ass EEO e he ae eee Gee eee ne Re ae ae eee ou ashe 9 De RED GI OF PO ecco nce ote oe ee oes Se een pues e eee ees Gu eden ancued yas eu autoee see deeecnese 9 6 Valve Reassembly esossseesseenssccseccsseceseceseccesersereserssecssecseeesecseeo 11 Oo Pin tie vave Pug SRM ns ccs csc wanna rere esau ace sa Oe EEA ee ee ok aes EE E EEEE 11 6 2 Assembly of Ring or Spring Energized Seal RING 0 nee ene arannana 12 6 3 41405 Valve Plug and Cage Assembly lt 5 acc benresnenehudas ceapeedy Ghenone caoueeiuas ee ank ee iaeedeniausess 13 6 4 Assembly of the Parts Inside the Valve Body 0 nee e net e teen nn teen ees 13 65 ASSCIND Ol BONNET ic cshrtnaras ireren Oneness Stace eeeasdsdetnts bra bees tatidadedeasees 13 66 Tomennga Body SWA NU ace caeheac 4acie toons an EEEE enna ng eee paeeee ks oe nase 14 67 ASSEMOIY CEPOCKING BOM vn ccna cacaeegetndseetesae yt te oaeeas ses EA E bawesGea es preendawaveunwe eas 15 L AC WOO ee ee ee ee ee E E ee ee ees ere eee 16 7 1 Coupling of Actuator Type 88 NO 6 dincc ied como sant
24. spring washer 17 For valve sizes 450 600 and 750 mm 18 20 and 24 insert either the first cage gasket the cage washer and the second cage gasket or the flat spring depending on the type of valve then place the body gasket 10 in the valve body making sure that it is centered as well as possible Caution to the direction of assembly of spring washer ND 150 6 to 450 18 valves the concave face is upwards ND 500 20 and 600 24 the concave face is downwards and the tapped holes are visible 6 5 Assembly of Bonnet Check that the packing ring 6 the spacer 5 and the guide bushing 22 have been removed from the bonnet Position the bonnet 7 above the valve so that the packing flange studs 2 are perpendicular to the flow direction of the valve Thread the bonnet 7 onto the valve stem 1 and push it down carefully until it goes into the valve body studs 21 and takes up its correct position Grease the threads of the valve body studs 21 and the bearing surfaces of the body stud nuts 8 Screw on the body stud nuts by hand Tighten the nuts lightly and evenly so that the internal parts are held in place The face of the bonnet should be parallel to the upper face of the body Slide the guide bushing 22 onto the valve plug stem and let it drop to the bottom of the packing box housing 13 6 6 Tightening of Body Stud Nuts Alignment of internal parts In order to achieve
25. tead of the actuator lift the bonnet 7 up and separate it from the valve body 18 During this operation the valve plug stem 1 must be pushed downwards so that the valve plug remains in the valve body 18 E Remove the spring washer 17 and the body gasket 10 F Inthe case of type 41305 41375 41505 41605 and 41905 valves remove the valve plug stem 1 and valve plug 15 assembly from the cage by pulling the valve plug stem upward then remove the cage 16 and stack 37 assembly for 41375 type valve Caution Because of the cage gasket 31 the cage can sometimes be lifted along with the valve plug If this should happen press down on the cage so that it remains in the body If the cage is lifted along with the valve plug it could slip during handling and fall In the case of a 41905 series valve equipped with a graphite ring 45 make sure that the ring is not damaged during the operation G Inthe case of a 41405 valve remove the valve plug and body cage assembly by pulling the valve plug stem upward in this case the valve plug has a shoulder which prevents the cage from falling Remove the valve plug from the cage by pulling on the end of the valve plug stem H Remove the seat ring 13 and the seat ring gasket 14 from the valve body 18 Remove the packing 6 the packing spacer 5 and the guide bushing 22 from the bonnet 7 Note A packing spacer 5 is only mounted when the bonn
26. the pressure class the material used for the pressurized chamber and the air supply pressure of the actuator 1 3 After Sales Service GE offers it clientele an After Sales Service comprising highly qualified technicians for the operation maintenance and repair of its equipment To benefit from this service contact our local representative or the After Sales Service of the factory whose address is given at the end of the document 4 1 4 Spare Parts When carrying out maintenance operations only manufacturer s replacement parts must be used obtained through our local representatives or our Spare Parts Service When ordering spare parts the model and serial numbers indicated on the manufacturer s serial plate must be given The recommended spare parts are indicated in the parts list included in this instruction manual on page 20 1 5 Actuator and Other Accessories The valve is equipped with an actuator like all the other valve accessories actuators are the subject of special instructions which provide information on the electric and pneumatic connections The instruction manuals to be used for standard actuators are No ER30004E for types 37 38 No ER8788 for types 87 88 2 Numbering System Actuator 2 Digits Actuator Type and Action on Air Failure Body Balanced Plug Series Seal Type Conventional Undefined 57 Open 38 _ Close Pressure energized Cylinder PTFE seal ring 51 Double Acting 5
27. umber of threads inside the stem connection must be approximately equal for each stem Tighten screwis 52 D Check that the travel of the actuator stem corresponds to the effective travel of the valve and that the closed position is obtained for the minimum spring range indicated on the serial plate E Shut off the air pressure then use the pointer 58 to set the travel scale 56 The pointer 58 must indicate closed when the air pressure is nil 7 7 Other Types of Pneumatic Actuators For other type of actuators which the coupling valve actuator is realized by coupling parts see Figure 16 follow the procedure e 75 for actuator opens by air failure e 76 for actuator closes by air failure Model 87 No 10 16 23 Detail of 87 88 Model No 6 Model 88 No 10 16 23 Parts Reference s Pomerscew oooO x Tepstemcomecin s capscrew socheod comnecorinet rome ofruar oO OO ape SSS Not provided for size 6 actuator Figure 15 Spring diaphragm actuators types 87 88 multispring 19 _ 1 4 NPT a S o N imi rat imel O la M 1 4 NPT Plug stem coupling part the size see detail i 33 mU UL LIU eal Type 38 Air to retract actuator Type 37 Air to extend actuator iii _ rrigi ii k k AAA rrer Y x F a yf a i f F Yod E O SLO i i Ki rj w Coupling parts No 18 and 18L actuators Co
28. upling parts No 24 actuator Detail of coupling types of plug stem Figure 16 Spring diaphragm actuator 37 38 types 20 Parts Reference Body Sub Assembly NNN a N SS Nak NDS i 4 F S k AY 7 i 41405 TRIM 2 to 4 41405 TRIM 6 to 18 A LLION P corres Diffuser Option Figure 17 Internal parts of pilot plug valve 41405 type Ta L TT BAN ie pun wie an HE D a joe Figure 18 Internal parts of VRT anticavitation valves 41375 type 41005 Series Cage Guided Balanced Globe Valve Tech Spec September 2013 21 22 GE Oil amp Gas Packing with lateral connection Without spring washer 6 to 16 lt 1500 Ib and 8 to 16 2500 Ib 18 20 and 24 With spring washer 6 to 18 lt 1500 Ib l and 8 to 16 2500 Ib ee aes Double cage Valve working in Flow to close Flow to open temperature 11F 28 29 11G Parts Reference e coms sfsoatsesa o zs reaninorng S E es Pugstensin sfe ofwy On 41405 series valves only Recommended spare part A On 41305 series valves only On 6 to 24 valves sizes only 150 to 600mm J On 41905 series valves only O On 41375 high temperature valves only On 41605 series valves only Mi On 41405 505 Series valves only DIRECT SALES OFFICE LOCATIONS AUSTRALIA ITALY SOUTH AFRICA Brisbane Phone 3
29. ure that the bonnet face stays parallel at that of the body When the torque values given in the following table are reached the bonnet face must be in contact with that of the body Screw the external nuts in order indicated by the Figure 2 and screw them by successive uniform and progressive levels until the torque values given in the following table 14 Torque Valve body stud Bonnet Nuts 21 ASME Pressure classe oe 300 600 3 4 10 900 1500 7 8 9 2500 11 4 8 900 1500 300 600 3 4 10 900 1500 11 4 8 900 1500 2500 11 2 8 4 300 600 7 8 9 6x4 o exa i500 T112 EEE 30 1 600 oxe aooo Ta 2500 a7 s 300 600 11 4 10x8 900 12 x 7500 a 8 2500 13 4 8 300 11 2 8 600 11 2 8 10 900 13 4 8 eee 8 so ae 600 im 300 1500 13 4 8 2500 17 8 8 11 2 8 300 600 112 8 7900 11 2 8 iso fay Nominal Se ft lb size in Size in W x NO 250 1000 400 350 1300 1400 700 1400 1700 1220 1300 1500 2800 2070 120 2000 1500 1630 1000 2300 1700 1960 n 1500 700 2000 1400 2200 1600 2000 1500 gt b gt s Pa aalala i Ey GW 7 A a ololah O gt gt x Pa A A m WN O O 16 1 r 1 3 4 300 600 900 17 8 300 600 300 ahe 13 4 8 13 4 8 13 4 8 NO Figure 10 6 7 Assembly of Packing Box To assemble the packing box proceed as indicated in the
30. ve several times then tighten the packing Put the valve back into service and check for tightness Tighten packing flange nuts 3 as required 5 2 Repair of Parts Before re assembly the parts must be carefully examined in order to eliminate any scratched worn or damaged parts 5 2 1 Guiding surfaces The guiding surfaces of the cage and valve plug the guide bushing and the guiding surfaces of the plug stem and auxiliary pilot plug must be checked in particular If 9 there is only slight damage a light abrasive can be used Otherwise the part must be replaced as soon as possible see paragraph Spare parts Guiding surface Guiding surface Pilot Seating surface Cage Figure 5 5 2 2 Sealing surfaces Figure 6 Guiding surface Guiding surface Valve Plug Seating surface fx 7 32 30 a Ai 1 62 30 su f fara XS i Plug seating LENER Pilot seating surface 30 30 j surface l 41405 only Seat ring seating surface Figure 6 If the surface of the auxiliary pilot plug 20 is damaged the auxiliary pilot plug must be replaced see paragraph Spare parts The seat ring 13 plug and auxiliary pilot plug 20 seating surfaces must be completely free of dents wear and scratches If the auxiliary pilot plug seat in the valve plug 15 and or other valve plug or seat ring seating surfaces show signs of slight deterioration they can be t
31. w the top stem connector assembly onto 150 to 600 the actuator stem C Push down the actuator and at the same time screw 13 Reverse actuators seating values for on the yoke nut 33 then the bottom stem connector Bisbee nud ORAT aes assembly by screwing until they come into contact Valve size ASME Value A Value a1 with the hex nut 1 class mm in mm in D Push down the actuator and tighten the yoke nut 150 300 or 600 E Unscrew the top stem connector to respect 2500 2 5 0 1 4 4 0 17 dimension X in Figure 12 900 or 2500 2 0 08 3 9 0 15 F With the plug correctly positioned on the seat 90002500 21008 391015 unscrew the bottom stem connector assembly to 150 to 1500 3 0 12 5 0 2 bring it into contact with the top stem connector 2500 G Supply air to the actuator until the stem has travelled a a 150 to 1500 H Unscrew the bottom stem connector the number of os 150 to 1500 turns N1 specified in Figure 13 then lock manually 6 0 24 8 3 0 33 with hex nut 1 owo gt 00 10 12 and 16 150 to 1500 Caution for 41403 valves use the N2 valve so ensure gt and 16 2500 7 0 275 9 3 0 37 tightness of the pilot plug Release the pressure in actuator so that the two A Pilot plug travel parts of connector come into contact and tighten the socket head cap screws and nuts 1 and 32 Figure 14 Seating value for 41405 valves 7 5 Coupling of Air to Extend Actuator Type 37 Figure

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