Emerson Fisher easy-e ET Data Sheet
Contents
1. Cavitrol III Consult your Emerson Process Management sales office End Connection Styles Refer to appropriate valve bulletin Shutoff Classification Class IV standard for one stage trim only 0 01 of valve capacity at full travel tested with air at 3 4 bar 50 psid per ANSI FCI 70 2 and IEC 60534 4 Class V standard for two and three stage trims optional for one stage trim 5x10 2m sec bar mm of port diameter 0 0005 mL min psid in of water at service pressure drop per ANSI FCI 70 2 and IEC 60534 4 TSO Tight Shutoff Trim optional for one two and three stage trims Valves with TSO trim are factory tested to a more stringent Emerson test requirement of no leakage at time of shipment using ANSI FCI Class V procedures Consult your Emerson Process Management sales office for additional information See figure 5 Maximum Inlet Pressures Consistent with applicable ASME B16 34 pressure temperature ratings as shown in tables 1 and 3 up to 232 C 450 F Maximum Pressure Drop One stage 99 3 bar 1440 psi but do not exceed the maximum pressure and temperature for the class rating of the valve body material used Two stage 149 bar 2160 psi but do not exceed maximum allowable inlet pressure Three stage 207 bar 3000 psi but do not exceed maximum allowable inlet pressure Pressure drops are valve size and trim stage dependent For additional Cavitrol trim application guidelines contact your Emerson2. Eu 0 9 Large ET 16 203 8 40 1330 i Ee ae 0 9 1 Valves should not be required to throttle at a Cv less than the minimum Cv for an extended period of time Erosion damage to the valve seats may result 2 Minimum Cv for the Optional category is the same as the minimum Cv in the Standard category Figure 4 Required Seat Force for Class IV and V Shutoff Classification SHUTOFF PRESSURE DROP BAR 0 50 100 1000 150 200 250 300 350 40 900 800 700 600 500 400 300 200 REQUIRED SEAT LOAD LB PER LINEAL INCH 100 0 2222 6 110 CLASS V METAL SEAT FOR OPTIMUM PERFORMANCE AND LIFE IN BOILER 170 FEEDWATER SERVICE 160 150 140 130 120 100 90 80 70 60 50 REQUIRED SEAT LOAD N PER LINEAL mm 40 30 20 10 1000 2000 3000 4000 5000 6000 SHUTOFF PRESSURE DROP PSI NOTE CLASS IV SHUTOFF IS FOR CAVITROL III ONE STAGE TRIM ONLY Product Bulletin Cavitrol 111 Trims 80 2 030 D100196X012 March 2012 Figure 5 Detail of TSO Tight Shutoff Trim Protected Soft Seat INNER PLUG ES CAVITROL HOLE PROTECTED SOFT SEAT SEAT RING A7039 1 Figure 6 Pressure Drop Patterns Cavitrol Ill Three Stage Trim INLET PRESSURE CONVENTIONAL EQUAL DROP THREE STAGE CAGE PRESSURE INLET PRESSURE TO THIRD CAVI
3. Process Management sales office Cavitrol Ill Trims D100196X012 Construction Materials See table 5 Temperature Capabilities One stage 29 to 232 C 20 to 450 F Two and three stage See table 5 and figure 7 Flow Characteristic Standard Cage Linear Characterized Cage Consult your Emerson Process Management sales office Flow Direction Flow down in through cage openings and out through seat ring as shown in figure 2 Flow Coefficients 2 Values given in tables 2 and 3 also see Fisher Catalog 12 Valve Recovery Coefficients 2 Fi of One Stage Cage See table 2 F of Two Stage Cage 0 98 of Three Stage Cage 0 99 These values define the maximum allowable pressure drop that is effective in producing flow as shown in the following equation APallowable P1 flowing fc Py Where APallowable maximum allowable pressure drop that is effective in producing flow bar psi P4 flowing flowing inlet pressure bar absolute psia 7critical pressure ratio from Catalog 12 P vapor pressure of liquid at inlet temperature bar absolute psia Port Diameters and Circumferences See tables 1 and 3 Maximum Valve Plug Travel See tables 2 and 3 continued Cavitrol 111 Trims D100196X012 Specifications continued Minimum Seating Force Refer to figure 4 to determine minimum seat load per unit of port circumference multiply that value by the port circumference from table 1
4. accessory bulletins If operating below minimum published see tables 2 3 and 4 added trim reliability may be obtained through use of low travel cutoff features available with FIELDVUE digital valve controllers Cavitrol 111 Trims D100196X012 Table 6 Non Standard Dimensions Cavitrol Ill Two Stage Trims Only ET CL600 Valve dues Heus Stem Diameter Dimension D Size Diameter NPS mm Inch mm Inch mm Inch 1 71 2 13 16 12 7 1 2 184 7 25 1 1 2 24 2 1 8 9 5 3 8 155 6 12 7 2 13 16 12 7 1 2 178 7 00 2 71 2 13 16 12 7 1 2 202 7 94 90 3 9 16 19 1 3 4 198 7 81 2 1 2 71 2 13 16 12 7 1 2 230 9 06 90 3 9 16 9 1 3 4 227 8 94 3 71 2 13 16 12 7 1 2 260 10 25 90 3 9 16 19 1 3 4 257 10 12 4 90 3 9 16 19 1 3 4 308 12 12 127 5 25 4 1 379 14 94 e 90 3 9 16 19 1 3 4 337 13 25 127 5 25 40r31 8 1or1 1 4 406 16 00 8 90 3 9 16 19 1 3 4 511 20 12 127 5 25 40 31 8 10 1 1 4 586 23 06 1 102 mm 4 inch travel construction D dimension does not change for 51 mm 2 inch travel construction Product Bulletin 80 2 030 Table 7 Non Standard Dimensions Cavitrol III Two Stage Trims Only March 2012 EWT CL600 Valve Veces Stem Diameter Dimension D Size Diameter NPS mm Inch mm Inch mm Inch Ax2 71 2 13 16 12 7 1 2 252 9 94 90 3 9 16 19 1 3 4 249 9 81 71 2 13 16 12 7 1 2 346 13 62 6x4
5. 00 diti steel with H900 S31600 stainless S31600 stainless CANCES heat treat steel 316 SST steel 316 SST 420 SST condition 53160001 517400 stainless 600 se Heat treated dne T 3 steel with H900 531600 stainless 1531600 stainless and 900 542000 heat treat steel steel 5316000 condition Sar 544004 jd Es s Heat treated CB7CU 1 17 4PH SST 531600 stainless 58 544004 440C with H1075 heat treat S17400 te l None SST condition H1150 chrome v EHT CL2500 iin CoCr A 531600 with 59 CoCr A seat and 517400 391 None guide H1150 chrome coat 2 517400 stainless steel 3 205A Heat treated with H1075 heat treat 544004 520910 stainless Same as body 44004 ee steel bonnet material condition ae Heat treated 3117400 stainless Stee 531600 stainless Same as body a Me S1200 2058 with H1075 heat treat 544004 23200 4500 HPT and and 1500 544004 e steel bonnet material ABAT condition S31600 with S17400 stainless steel i 206 NACE 3 4 CoCr A seat and with double H1150 521600 320310stainless Sameas body ve CoCr A steel bonnet material guide heat treat condition 1 Second material shown is cage retainer 2 Second material shown is seat ring retainer 3 If using valve body trim combinations other than those listed consult your Emerson Process Management sales office 4 NACE MR0175 2002 5 NPS 1 2 stage and NPS 2 3 stage HP
6. 3 33 3 1 3125 64 2 5 0 73 13 1 0 13 0 02 0 99 CL2500 EHT 4 6x4 58 7 2 3125 70 2 75 1 0 20 8 0 25 0 038 0 99 6 8x6 111 1 4 375 95 3 75 2 8 66 7 0 50 0 077 0 99 CL900 1500 and 2500 1 zw SA uA aati ae DT 2 E pud HPAS and HPAT 2 25 4 10 51 2 0 59 6 73 5 06 0 785 0 99 CL900 1500 and 2500 1 SES ud a Tz ge pag P a 27 HPS and HPT 2 25 4 10 51 2 0 59 6 73 5 06 0 785 0 99 3 47 6 1 875 38 1 5 1 20 16 5 0 20 0 031 0 99 CIAR 1309 4 73 275 76 3 170 278 030 0 047 0 99 HPS and HPT 6 115 9 4 5625 102 4 3 10 65 0 0 52 0 080 0 99 1 Characterized cages are available Consult your Emerson Process Management sales office for information 2 Cv as low as 0 04 is available Consult your Emerson Process Management sales office for information 3 Valves should not be required to throttle at a Cv less than the minimum Cv for an extended period of time Erosion damage to the valve seats may result 4 Cavitrol Ill trim in the CL1500 and 2500 NPS 1 two stage and in the NPS 2 three stage valve uses unbalanced valve plugs These sizes and constructions are HPS HPAS valves other valves in this section of the table are HPT HPAT valves Product Bulletin Cavitrol Ill Trims 80 2 030 D100196X012 March 2012 Table 5 Trim Material and Temperature Limit VALVE VALVE TRIM BONNET MAXIMUM VALVE PLUG CAGE SEAT RING VALVE STEM TEMPERATURE DESIGN RATING DESIGNATION B SPACER 6 7 z F Heat treated 317400 stainless ET CL600 76 5420
7. 90 3 9 16 19 1 3 4 343 13 50 127 5 25 40 31 8 10 1 1 4 389 15 32 71 2 13 16 12 7 1 2 348 13 69 8x4 90 3 9 16 19 1 3 4 344 13 56 127 5 25 40r 31 8 10 1 1 4 391 15 38 8x60 90 3 9 16 19 1 3 4 402 15 82 127 5 25 40 31 8 10 1 1 4 446 17 56 12x62 90 3 9 16 19 1 3 4 478 18 82 127 5 25 40r 31 8 10 1 1 4 522 20 56 10x8 90 3 9 16 19 1 3 4 511 20 12 127 5 25 40r 31 8 10 1 1 4 586 23 06 12x8 90 9 16 19 1 3 4 559 22 00 127 25 40 31 8 10r1 1 4 613 24 12 1 CL600 and CL900 NPS 8 x 6 and 12 x 8 are the same 2 Long travel construction D dimension does not change for 51 mm 2 inch travel construction Figure 8 Non Standard Dimensions Cavitrol Ill Two Stage Trims Only also see tables 6 and 7 MATCH LINE FOR ib A 71 OR 90 2 13 16 OR 3 9 16 INCH DIAMETER YOKE BOSS MATCH LINE FOR ALL MATCH LINE FOR 585C OTHER ACTUATORS SERIES ACTUATORS AND 657 667 SIZE 100 ACTUATORS 25 4 1 00 WA i 127 mm 5 INCH DIAMETER YOKE BOSS mm INCH 11 Product Bulletin 80 2 030 Cavitrol Ill Trims March 2012 D100196X012 Neither Emerson Emerson Process Management nor any of their affiliated entities assumes responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any product remains solely with the purchaser and end user Fisher Cavitrol easy e and FIELDVUE are mar
8. ALVE 1 2 RATING ae PORT DIAMETER UNBALANCE AREA CIRCUMFERENCE STEM DIAMETER YOKE BOSS DIAMETER AND DESIGN NPS mm Inch cm2 Inch2 mm Inch mm Inch mm Inch 1 33 3 1 3125 0 13 0 02 104 6 4 12 12 7 1 2 71 2 13 16 1 1 2 47 6 1 875 0 20 0 031 149 6 5 89 12 7 1 2 71 2 13 16 12 7 1 2 71 2 13 16 2 58 7 2 3125 0 25 0 038 184 4 7 26 191 3 4 90 3 9 16 12 7 1 2 71 2 13 16 ios 2 1 2 73 0 2 875 0 30 0 047 229 4 9 03 191 3 4 90 3 9 16 through 3 87 3 3 4375 0 36 0 056 274 3 10 80 mA 1 2 2 13 16 9 1 3 4 90 3 9 16 600 ET j 19 1 3 4 90 3 9 16 4 111 1 4 375 0 50 0 077 349 0 13 74 254 1 127 5 25 4 or 1or 6 177 8 7 0 84 0 13 558 5 21 99 318 1 1 4 127 5 25 4 or 8 203 2 8 0 97 0 15 638 3 25 13 318 1 1 4 127 5 12 7 1 2 71 2 13 16 4 2 58 7 2 3125 0 25 0 038 184 4 7 26 19 1 3 4 90 3 9 16 6x4 or 19 1 3 4 90 3 9 16 eem 8 4 111 1 4 375 0 50 0 077 349 0 13 74 254 1 127 5 8x6 or 25 4 or 1or 12x6 177 8 7 0 84 0 13 558 5 21 99 318 1 1 4 127 5 10 8 25 4 or 1or 12x8 203 2 8 0 97 0 15 638 3 25 13 318 1 1 4 127 5 CL150 through 16 374 7 14 75 4 19 0 65 1177 46 32 31 8 1 1 4 127 5 600 EUT 2 cL150 20x16and 3747 14 75 4 19 0 65 1177 46 32 31 8 1 1 4 127 5 through 24x16 600 EWT 2 24x20 463 6 18 25 5 29 0 81 1456 57 31 31 8 1 1 4 127 5 CL150 through 12 14 600 and 16 279 4 11 3 16 0 49 877 3 34 54 31 8 1 1 4 127 5H Large ET 1 Same as ET or EWT port diameter Also listed in valve bulletin 2 When two stem diameters are shown for a particular valve size
9. Cavitrol 111 Trims D100196X012 Product Bulletin 80 2 030 March 2012 Fisher Cavitrol Ill One Two and Three Stage Trims Cavitrol Ill trims figures 1 2 and 3 are used for cavitating liquid applications in various globe and angle valve bodies see tables 1 2 and 3 Contact your Emerson Process Management sales office for angle valve information One stage trims are normally used where the pressure drop is below 99 bar 1440 psi two and three stage trims are normally used where the pressure drop is between 99 and 207 bar 1440 and 3000 psi The Cavitrol Ill trims are frequently used in pump recirculation and startup systems in the power process oil production chemical refining and other industries Unless otherwise noted all NACE references are to NACE MR0175 2002 Features Controls or Helps to Eliminate Cavitation Damage Cavitrol Ill trim can lengthen valve service life and reduce maintenance downtime The shape and spacing of holes in the cage wall circumference helps prevent cavitation in a properly sized valve effectively controlling or helping to eliminate depending upon service conditions cavitation damage and resulting valve failure Rangeability Many special characterizations are available in Cavitrol Ill cages to match rangeability requirements of specific systems Resistance to Erosion Damage Standard hardened trim materials provide excellent wear resistance resulting in long
10. S can be used at temperatures up to 343 C 650 F 6 Bonnet spacer is not used with easy e and EW series one stage trims or with EH Series valves 7 Bonnet spacer is used only with 2 stage trims in NPS 2 HPT HPAT valves Product Bulletin 80 2 030 March 2012 Figure 7 Pressure Drop Temperature Capabilities with Seal Ring Cavitrol Ill Two and Three Stage Trims LIQUID TEMPERATURE C 204 232 316 73 50 50 100 150 200 250 300 PRESSURE DROP BAR PRESSURE DROP PSI 100 50 0 100 200 300 400 500 600 450 2963 1 LIQUID TEMPERATURE F NOTES 1 FOR BOTH GLASS FILLED AND GRAPHITE FILLED PTFE AND N10276 SEAL RING 2 gt FOR PEEK ANTI EXTRUSION RING WITH GRAPHITE FILLED PTFE AND N10276 SEAL RING 3 DO NOT EXCEED 143 BAR 2160 PSI WITH TWO STAGE CAVITROL III CAGE 4 PEEK REQUIRED FOR ALL BOILER FEEDWATER APPLICATIONS 5 FOR STAINLESS STEEL PRESSURE BOUNDARY MATERIALS CONTACT YOUR EMERSON PROCESS MANAGEMENT SALES OFFICE Installation Valve bodies with Cavitrol Ill trim must be installed so that the flow direction is in through the cage openings and out through the seat ring This will be indicated by an arrow on the valve body Exterior dimensions for ET and EWT valve bodies with Cavitrol IIl one stage trim and valve bodies with Cavitrol IIl trims do not change from their standard trim constructions For ET and EWT valve bodies with Cavitrol IIl two stage trims see figu
11. T 2 44 5 1 75 51 2 0 58 14 0 0 19 0 029 0 98 CL900 1500 and 2500 1 22 2 0 8750 38 1 5 0 36 7 39 3 88 0 601 0 98 HPS and HPT 2 44 5 1 75 51 2 0 58 14 0 0 19 0 029 0 98 3 63 5 2 5 64 2 5 0 73 34 4 0 26 0 041 0 98 1300 4 873 3 4375 76 3 0 90 581 0 31 0 056 0 98 HPS and HPT 6 133 4 5 25 102 4 1 72 123 0 59 0 092 0 98 1 Characterized cages are available Consult your Emerson Process Management sales office for information 2 Cvas lowas 0 04 is available Consult your Emerson Process Management sales office for information 3 Valves should not be required to throttle at a Cv less than the minimum Cv for an extended period of time Erosion damage to the valve seats may result 4 Values for CL900 NPS 8 x 6 and 12 x 8 EWT available in two stage trim same as CL600 NPS 8 x 6 and 12x 8 EWT 5 Cavitrol Ill trim in the CL1500 and 2500 NPS 1 two stage and in the NPS 2 three stage valve uses unbalanced valve plugs These sizes and constructions are Design HPS HPAS valves other valves in this section of the table are HPT HPAT valves 6 For larger sizes consult your Emerson Process Management sales office Table 4 Standard Cavitrol Ill Trim Linear Characteristic for Cavitrol Ill Three Stage Trims 2 Port Di T UNBALANCE VALVE BODY RATING VALVESIZE his DEUS taxe MinG Max AREA Fiat AND DESIGN NPS mes inch nem men Gy cm Inch Maximum Travel 3 4x
12. TROL III STAGE A2962 1 2 3 FLUID TRAVEL THROUGH THE VALVE STAGES Product Bulletin 80 2 030 Cavitrol Ill Trims March 2012 D100196X012 Table 3 Standard Cavitrol Ill Trim Linear Characteristic for Cavitrol Ill Two Stage Trims 2 VALVEBODYRATING VALVESIZE Port Diameter Travel Min Max UNBALANCE AREA at AND DESIGN NPS mm Inch mm Inch C Gr cm2 Inch2 Maximum Travel 1 25 4 1 25 1 0 28 5 8 0 13 0 02 0 98 1 1 2 33 3 1 3125 38 1 5 0 44 9 4 0 13 0 02 0 98 2 47 6 1 875 51 2 0 92 21 0 20 0 031 0 98 CL600 2 1 2 58 7 2 3125 64 2 5 1 1 33 0 25 0 038 0 98 ET 3 73 0 2 875 76 3 1 2 49 0 30 0 047 0 98 4 73 0 2 875 102 4 1 9 69 0 30 0 047 0 98 6 136 5 5 375 102 4 3 0 144 0 65 0 10 0 98 8 177 8 7 152 6 7 0 265 0 84 0 13 0 98 4x2 47 6 1 875 51 2 0 92 22 0 20 0 031 0 98 6x4 73 0 2 875 102 4 1 9 71 0 30 0 047 0 98 CL600 4 6 8 4 73 0 2 875 102 4 1 9 81 5 0 30 0 047 0 98 EWT 8x6 136 5 5 375 127 5 3 0 178 0 65 0 10 0 98 12x6 136 5 5 375 152 6 3 0 208 0 65 0 10 0 98 12x8 177 8 7 152 6 7 0 272 0 84 0 13 0 98 3 4x3 47 6 1 875 64 2 5 0 61 24 1 0 20 0 031 0 98 CL2500 EHT 4 6x4 73 2 875 70 2 75 0 91 43 9 0 30 0 047 0 98 6 8x6 111 1 4 375 95 3 75 1 5 75 8 0 50 0 077 0 98 CL900 and 1500 HPAS 1 22 2 0 8750 38 1 5 0 36 7 39 3 88 0 601 0 98 2 44 5 1 75 51 2 0 58 14 0 0 19 0 029 0 98 d 1 22 2 0 87505 38 1 5 0 36 6 91 3 88 0 601 0 98 CaO ROS ang HEA
13. ks owned by one of the companies in the Emerson Process Management business unit 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 All sales are governed by our terms and conditions which are available upon request We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Process Management Marshalltown lowa 50158 USA Sorocaba 18087 Brazil Chatham Kent ME4 4QZ UK Dubai United Arab Emirates Singapore 128461 Singapore www Fisher com EM ERSON Process Management 1996 2012 Fisher Controls International LLC All rights reserved Process Mana g ement
14. l two and three stage cages are concentric cylinders or stages figure 3 with specially shaped orifices The choice of cage depends on the inlet pressure and the required pressure drop In operation liquid passes through the orifices in each stage undergoing a portion of the total required pressure drop This partial pressure drop in each stage of a properly sized valve normally prevents the liquid pressure from falling to or below its vapor pressure eliminating the formation of vapor bubbles A characterized Cavitrol Ill two or three stage trim can be specified on those applications where the pressure drop across the valve decreases with increasing valve plug travel Characterized Cavitrol Ill two or three stage trim consists of two or three stages at the beginning of valve plug travel Then as the valve is required to take less pressure drop cage sections with fewer stages are used Product Bulletin 80 2 030 Cavitrol Ill Trims March 2012 D100196X012 Figure 1 Sectional View of Fisher ET Valve with Cavitrol Ill One Stage Trim W3746 2 Figure 2 Operation of Cavitrol Ill One Stage Trim Figure 3 Fisher HPT with Cavitrol Ill Three Stage Trim 52B6045 D W6962 W3747 2 Product Bulletin Cavitrol Ill Trims 80 2 030 D100196X012 March 2012 Table 1 Additional Specifications for Cavitrol Ill One Stage Trim VALVE PORT V
15. or Catalog 14 Valve Plug Stem and Yoke Boss Diameters See tables 1 6 and 7 and figure 8 Valve Plug Unbalance Area See tables 1 3 and 4 Product Bulletin 80 2 030 March 2012 Noise Level Use Emerson Process Management liquid noise prediction methods available in the Emerson Process Management sizing program Options E Cage with Special Characterization or W Valve Plug for applications over 232 C 450 F 1 The pressure temperature limits in this bulletin and any applicable standard or code limitation for valve should not be exceeded 2 For standard linear cage Consult your Emerson Process Management sales office for flow coefficients and valve recovery coefficients of cages with optional characteristics Principle of Operation Cavitation the formation and subsequent collapse of vapor bubbles in liquid flow streams is a major source of damage in control valves and adjacent piping As liquid passes through a restriction in a control valve the liquid velocity increases while the liquid pressure decreases The pressure reaches a minimum at a point called the vena contracta and if the pressure at this point falls to or below the vapor pressure of the liquid the pressure at which the liquid vaporizes vapor bubbles form in the flow stream Downstream of the vena contracta flow area increases velocity decreases and pressure increases If this recovered pressure is sufficient to raise the pressure above the li
16. quid vapor pressure the vapor bubbles will collapse The collapsing bubbles generate significant noise and vibration and can mechanically attack pipe walls and valve components This attack can lead to the failure of conventional valve components particularly the valve plug and seat ring Cavitrol Ill One Stage Trim The Cavitrol IIl one stage trim figures 1 and 2 can effectively eliminate cavitation damage properly sized and selected control valve Each cage hole is shaped to create a small flow stream with a vena contracta pressure higher than that typically present in the flow stream of a standard cage This higher vena contracta pressure reduces the fluid s tendency to cavitate Each hole in a Cavitrol Ill one stage cage is also designed to reduce fluid turbulence and the holes are spaced diametrically around the cage circumference both features dissipate fluid pressure and help to increase capacity Cavitrol IIl one stage trim can also be used to control cavitation damage When selected and sized for this type of service the radius edge on the valve plug and the diametrically opposed cage holes direct the cavitating fluid flow away from metal surfaces into the valve body cavity void In this manner damage from cavitating fluid flow is controlled Service conditions of each application govern whether cavitation damage is effectively eliminated or controlled Cavitrol 11 Two and Three Stage Trims The Cavitrol Il
17. re 8 and tables 6 and 7 for details of dimensions that change from standard For all other dimensions refer to the appropriate valve body bulletin Cavitrol Ill Trims D100196X012 Ordering Information When ordering specify Application Information 1 Process liquid State particle size and type of entrained impurities if any 2 Specific gravity of liquid Temperature and vapor pressure of liquid Critical pressure Range of flowing inlet pressures cou Uu Pressure drops a Range of flowing pressure drops b Maximum at shutoff 7 Flow rates a Minimum controlled flow b Normal flow c Maximum flow 8 Required C 9 Line size and schedule Valve Body Information To determine what information is needed for ordering the valve body and trim refer to the Specifications section Review the description at the right of each specification or in the referenced tables figures and bulletins and indicate the desired choice wherever a selection is to be made Always specify the body design being ordered as selected from table 1 or 3 Actuator and Accessory Information Select the specific actuator and accessories from the appropriate bulletins Typically piston actuators must be used where the required valve plug travel is greater than 102 mm 4 inches Typically diaphragm actuators may be used for 102 mm 4 inches or less required travel Specify any additional ordering information as required from actuator or
18. the smaller stem diameter is standard and the larger stem diameter is optional Product Bulletin 80 2 030 Cavitrol Ill Trims March 2012 D100196X012 Table 2 Valve Travels and Flow Coefficients Cavitrol Ill One Stage Trim OPTIONAL FOR DESIGN ET AND EWT NE UE MEAS DUE TO OVERTRAVEL FLat AND SIZE NPS Travel Min 1 Max Maximum Travel Maximum DESIGN i Max C 2 Travel mm Inch C mm Inch 1 19 0 75 1 9 12 2 25 1 15 5 0 90 1 1 2 19 0 75 2 5 19 4 22 0 875 22 5 0 93 CL125 2 29 1 125 3 9 36 1 bee 2 2 2 0 93 through 2 1 2 38 1 5 4 2 64 4 mee 0 91 600 3 38 15 4 6 81 5 41 1 625 86 7 0 89 ET 4 51 2 5 2 148 54 2 125 151 0 90 6 51 2 10 238 57 2 25 259 0 91 8 76 3 15 408 86 3 375 439 0 94 4 2 29 1 125 3 9 43 6 TE 2 ce 0 91 6x4 51 2 5 2 162 54 2 125 169 0 95 8 4 51 2 5 2 165 54 2 125 171 0 95 CL600 8 6 51 2 10 267 57 2 25 293 0 93 12x6 51 2 10 280 57 2 25 305 0 93 10x8 76 3 15 418 76 3 375 455 0 92 12x8 76 3 15 433 86 3 375 487 0 90 CL150 203 8 46 1790 S m s 0 9 through 600 16 EUT 2 276 10 88 46 2120 is 2 0 9 276 10 88 46 2390 ae m EN 0 9 cL 378 14 88 46 2800 m 0 9 276 10 88 46 2390 Hs a 0 9 m s 24x16 378 14 88 46 2800 xm m 0 9 ES 429 16 88 46 2940 A EE 0 9 276 10 88 56 3160 Ez zum 0 9 24x20 378 14 88 56 3810 m mm 0 9 429 16 88 56 4050 A zac 0 9 C150 12 203 8 40 1160 zer mE zu 0 9 through 600 14 203 8 40 1262 am
19. trim life The contoured valve plug seat reduces fluid separation helps direct fluid away from trim and helps protect against erosion damage Versatility Available in NPS 1 to 24 globe or angle valves with weld end or flanged end connections W3708 1 c CAVITROL Ill ONE STAGE TRIM PARTS w3559 CAVITROL Ill TWO OR THREE STAGE TRIM PARTS Easy Maintenance Cage type trim allows removal and inspection of parts without taking the valve body out of the pipeline Fine particles very seldom cause the accumulation problem associated with labyrinth type trim Efficient Operation A low inlet pressure to the final stage is maintained by the flow down configuration and the successively larger flow area of each stage At the third stage inlet see figure 6 about 85 of the total pressure drop has already occurred and the vena contracta pressure remains above the liquid vapor pressure This helps to prevent cavitation in a properly sized valve Trim Interchangeability Cavitrol Ill one stage trim is interchangeable with standard trims Quick trim changes can be made with no additional parts such as spacers longer bolts and special gaskets for valve sizes greater than NPS 1 a es EMERSON www Fisher com Process Management Product Bulletin 80 2 030 March 2012 Specifications Available Valves One stage See table 1 Two and three stage Cavitrol Ill See table 3 Two and three stage Characterized
Download Pdf Manuals
Related Search