Emerson 92C Data Sheet
Contents
1. 681 376 48 10 91 6 14 32 7 27 4 09 100 69 681 318 46 10 50 493 36 818 3 85 60 1364 642 40 9 10 4 26 150 103 27 643 232 46 1050 393 7 50 279 54 1227 464 37 840 3 14 35 24 14 318 332 21 4 77 512 15 3 41 874 24 545 581 17 3 86 4 01 50 34 21 477 3 66 34 772 6 07 23 522 414 39 886 694 26 591 4 62 202 14 75 52 28 636 366 44 1000 579 32 727 4 19 48 1091 632 34 7 72 4 46 i 100 69 750 360 54 12 27 5 92 37 412 61 13 87 6 69 42 954 4 63 150 103 7 50 286 49 11 14 429 37 321 57 12 96 500 41 931 3 57 200 13 8 37 840 274 43 9 77 3 15 48 1091 3 56 1 To determine capacities for pressure loaded Type 92C regulators multiply the printed value by the appro 2 Capacities for outlet pressure settings lower than 50 psig 3 4 bar are based on a 2 to 1 ratio of outlet pi priate value shown Table 7 pe size to main valve body size 10 continued Bulletin 71 2 92C Table 6 Water Flow Capacities and Regulating C Values for Type 92C Regulator Based on 10 Percent Proportional Band continued OUTLET PRESSURE INLET NPS 1 2 DN 15 N2. 20 to 500 F 29 to 260 C Ethylenepropylene EPR Seat 40 to 275 F 40 to 135 C Optional High Temperature Steel or Stainless Steel Body 650 F 343 C Pressure Registration With Pilot External Without Pilot Internal Downstream Control Line Connection 1 4 NPT internal in pilot body downstream control line not required for pressure loaded regulator Loading Pressure Connection 1 4 NPT internal in main valve diaphragm flange this connection is factory piped to the pilot on pilot operated regulator Pilot Spring Case Vent 3 32 inch 2 4 mm drilled hole Approximate Weights Cast iron Steel or Stainless steel Body with Pilot 20 pounds 9 kg Cast iron Steel or Stainless steel Body without Pilot 16 pounds 7 kg 1 Also see Installation section 2 Pressure temperature limits in this Bulletin and any application codes must not be exceeded Table 1 Outlet Pressure Ranges OUTLET PRESSURE RANGE SPRING PART NUMBER SPRING WIRE SPRING TREE SPRING USAGE PSIG bar ANB COLOR DIAMETER LENGTH i INCHES mm INCHES mm 5 to 70 0 34 to 4 8 1E392627012 Green 0 170 4 3 2 00 50 8 Standard use up to 500 F 260 C 20 to 150 1 4 to 10 3 1E392727142 Red 0 207 5 3 1 94 49 3 and or High 15 to 100 1 0 to 6 9 14B9941X012 Unpainted 0 192 4 9 ary Temperature over 500 F 260 C 80 to 250 5 5 to 17 2 14B9940X0
3. PRESSURE DROP ACROSS VALVE PSI NOTE 26A3808 A TO DETERMINE REQUIRED LOADING PRESSURE ADD THE DIAPHRAGM DIFFERENTIAL PRESSURE TO THE DESIRED OUTLET PRESSURE SETTING Figure 5 Diaphragm Differential Pressure for Pressure Loaded Regulator valve which positions the main valve to maintain downstream pressure as specified per ASME Boiler and Pressure Vessel Code Section VIII In the event that the upstream valve fails the downstream regulator will prevent downstream pressure from rising above safe operating levels It is recommended to install some type of warning system Such as a sentinel relief valve to warn the operator that a valve has failed in the system This will prevent prolonged operation with one valve which could cause valve trim wear and noise associated with operation at high differential pressures When operating in most steam systems valve setpoints should be in strict accordance to ASME Boiler and Pressure Vessel Code Section VIII The Type 6492HM or 6492HTM safety override pilot should be set at 10 psig 0 69 bar or 1096 above maximum downstream operating pressure of the second valve whichever pressure is greater For example most HVAC systems operate at 15 psig 1 0 bar so the safety override pilot should be set no higher than 25 psig 1 7 bar Installation The Type 92C regulator should be installed and used in accordance with federal state and local codes and regulations Downstream o
4. 150 10 3 800 363 1200 544 900 408 1400 635 1000 454 200 13 8 1000 454 mE 1150 522 p 1300 590 50 3 4 330 150 550 249 400 181 570 259 450 204 75 5 2 550 249 880 399 630 286 950 431 670 304 303 2 18 100 6 9 700 318 1150 522 800 363 1300 590 900 408 150 10 3 950 431 1400 635 1100 499 1600 726 1200 544 200 13 8 1000 454 m 1200 544 NJ 1400 635 55 3 8 330 150 560 254 400 181 580 263 430 195 60 4 1 390 177 610 277 450 204 670 304 480 218 75 5 2 480 218 870 395 600 272 930 422 660 299 40 2 80 100 6 9 700 318 1150 522 800 363 1300 590 900 408 150 10 3 1000 454 1400 635 1150 522 1700 771 1250 567 200 13 8 1100 499 en 1300 590 Nl 1500 680 250 17 2 1300 590 ae 1550 703 ote 1700 771 65 4 5 370 168 600 272 440 200 650 295 470 213 75 5 2 480 218 740 336 550 249 820 372 600 272 55 100 6 9 700 318 1100 499 800 363 1250 567 850 386 i 150 10 3 1000 454 1500 680 1200 544 1900 862 1300 590 200 13 8 1200 544 1800 816 1350 612 2300 1043 1600 726 2504 17 2 1400 635 mE 1700 771 EN 1850 839 75 5 2 360 163 630 286 400 181 740 336 450 204 80 5 5 430 195 700 318 500 227 850 386 550 249 PR a5 100 6 9 640 290 1000 454 700 318 1200 544 800 363 i 150 10 3 1000 454 1500 680 1200 544 1900 862 1300 590 200 13 8 1200 544 2000 907 1500 680 2600 1179 1700
5. 771 2500 17 2 1500 680 MES 1800 816 ec 2000 907 100 6 9 500 227 900 408 620 281 950 431 730 331 85 150 10 3 1000 454 1500 680 1200 544 1800 816 1200 544 200 13 8 1300 590 2000 907 1500 680 2500 1134 1700 771 250 17 2 1500 680 we 1800 816 2000 907 continued To determine capacities for pressure loaded Type 92C regulators multiply the printed value by the appropriate value shown in Table 7 To convert capacity to kg hr multiply by 0 4536 Capacities for outlet pressure settings lower than 50 psig 3 4 bar are based on a 2 to 1 ratio of outlet pipe size to main valve body size 20 to 150 psig 1 4 to 10 3 bar pilot control spring only red spring 1E392727142 Bulletin 71 2 92C Table 5 Steam Flow Capacities for Pilot Operated Type 92C Regulator Based on 10 Percent Proportional Band continued OUTLET CAPACITY POUNDS PER HOUR Kg h OF SATURATED STEAM INLET PRESSURE PRESSURE NPS 1 2 DN 15 NPS 3 4 DN 20 NPS 1 DN 25 SETTING Main Valve Main Valve Main Valve Standard Optional Standard Optional Psig Bar Psig Bar en 3 4 Inch 19 mm 9 16 Inch 14 mm 3 4 Inch 19 mm 9 16 Inch 14 mm Orifice Size Orifice Size Orifice Size Orifice Size 125 8 6 600 272 1000 454 750 340 1100 499 850 386 150 10 3 850 386 1500 680 1000 454 1600 726 1200 544 100 6 9 200 13 8 1300 590 2200 998 1600 726
6. from Table 6 6 89 105 1 11 67 0 GPM 253 60 l min Glycol Maximum Allowable Pressure Drop for Liquid Service Pressure drops in excess of allowable will result in choked flow and possible cavitation damage Choked flow is the formation of vapor bubbles in the liquid flow stream causing a crowding condition at the vena contracta which tends to limit flow through the regulator The vena contracta is the minimum cross sectional area of the flow stream occurring just downstream of the actual physical restriction Cavitation and flashing are physical changes in the process fluid The change is from the liquid state to the vapor state and results from the increase in fluid velocity at or just downstream of the greatest flow restriction normally the regulator orifice To determine the maximum allowable pressure drop for water AP Casa Km P4 Where P Valve differential psi K Valve recovery coefficient from Table 7 Valve inlet pressure psia To determine maximum allowable pressure drop for fluids other than water see Fisher9 Catalog 10 Bulletin 71 2 92C Table 5 Steam Flow Capacities for Pilot Operated Type 92C Regulator Based on 10 Percent Proportional Band CAPACITY POUNDS PER HOUR Kg h OF SATURATED STEAM OUTLET INLET PRESSURE PRESSURE NPS 1 2 DN 15 NPS 3 4 DN 20 NPS 1 DN 25 SETTING Main Valve Main Valve Main Valve 9 16 Inch Standard Stand
7. on pages 2 and 3 Review the descriptions to the right of each specification and indicate the desired choice wherever there is a selection to be made Be sure to specify the type of regulator desired pilot operated Type 92C regulator with Type 6392 pilot or pressure loaded Type 92C regulator without pilot Refer to separate bulletins for information on loading regulators for use with pressure loaded Type 92C regulators Orifice Size Select One 9 16 inch 14 mm 3 4 inch 19 mm not available for NPS 1 2 DN 15 body size Seat Construction Select One O 416 Stainless steel metal seat Ethylenepropylene EPR seat Gaskets Select One Composition up to 500 F 260 C Graphite over 500 F 260 C Tubing and Fittings Select One kkk O Copper tubing and brass fittings Stainless steel tubing and fittings Outlet Pressure Range Select One Standard Spring 5 to 70 psig 0 34 to 4 8 bar 20 to 150 psig 1 4 to 10 3 bar Spring for Use Over 500 F 260 C 15 to 100 psig 1 0 to 6 9 bar 80 to 250 psig 5 5 to 17 2 bar continued Bulletin 71 2 92C Ordering Guide continued Override Pilot Spring Ranges if applicable Select One Type 6492HM 1 10 to 30 psig 0 69 to 2 1 bar 25 to 75 psig 1 7 to 5 2 bar 70 to 150 psig 4 83 to 10 3 bar Type 6492HTM 15 to 100 psig 1 0
8. piped from the inlet side of the main valve to the pilot inlet connection Downstream pressure registers under the main valve diaphragm through the pitot tube under the pilot diaphragm through the downstream control line When downstream pressure decreases to a value below the setting of the pilot regulator spring the pilot spring forces the pilot valve plug open increasing the loading pressure on the top of the main valve diaphragm The increased loading pressure on top of the main valve diaphragm and decreased downstream pressure under the main valve diaphragm force the main valve diaphragm and stem downward This opens the main valve plug and increases flow to the downstream system thus restoring downstream pressure to the setting of the pilot regulator spring When downstream pressure increases it registers under the pilot diaphragm and overcomes the force of the pilot spring This allows the pilot valve spring to close the pilot valve plug and causes excess loading pressure to bleed to the downstream system through the pilot bleed hole At the same time increased downstream pressure registers under the main valve diaphragm The decreased loading pressure on top of the main valve diaphragm and increased downstream pressure under the main valve diaphragm force the main valve diaphragm upward This allows the main valve plug spring close to the main valve plug reducing flow to the downstream system Bulletin 71 2 92C TY
9. to 6 9 bar 80 to 250 psig 5 5 to 17 2 bar Pressure Loading Supply Optional Yes Type 670 panel loader Main Valve Replacement Parts Kit Optional O Yes send one replacement parts kit to match this order Pilot Replacement Parts Kit Optional O Yes send one replacement parts kit to match this order Steam Specification Worksheet Application Tag Number Valve Type LIDirect Operated Pilot Operated Pressure loaded LlDifferential Body Material Steel Iron Stainless steel Inlet Outlet End Connection Style CL150 RF Flange LICL250 RF Flange LICL300 RF Flange L1CL600 RF Flange 16 25 40 Inlet Outlet Pipe Size Inches mm Steam Conditions Inlet Pressure psig bar Maximum Normal Minimum Inlet Temperature F C Regulators Quick Order Guide Quiet Pressure Apsigban E Standard Readily Available for Shipment Flow een eR MOM Non Standard Allow Additional Time for Shipment Performance Required Special Order Constructed from Non Stocked Parts Accuracy Requirements Consult your local Sales Office for Availability Availability of the product being ordered is determined by the component with the longest shipping time for the requested construction Bulletin 71 2 92C Industrial Regulators Emerson Process Management Regulator Technologi
10. 12 Unpainted 0 282 7 2 Table 2 Flow Coefficients ORIFICE SIZE WIDE OPEN FOR RELIEF SIZING K 1 m INCHES mm 9 16 14 170 8 5 5 34 0 67 3 4 19 240 12 7 1 1 C C 20 C Table 3 IEC Sizing Coefficients ORIFICE SIZE INCHES mm BODY SIZE NPS DN 9 16 14 3 4 19 Xr Fp FL X Fp Fi 1 2 15 0 38 0 73 0 82 3 4 or 1 200r25 0 44 0 73 0 38 0 82 Bulletin 71 2 92C PILOT SUPPLY BE EN EEE PILOT VALVE PLUG PILOT VALVE SPRING MAIN VALVE PLUG MAIN VALVE SPRING A6618 EHE INLET PRESSURE BEE PILOT REGULATOR SPRING PILOT DIAPHRAGM DOWNSTREAM BLEED HOLE DOWNTREAM CONTROL LINE MAIN VALVE DIAPHARGM PITOT TUBE EE OUTLET PRESSURE ATMOSPHERIC PRESSURE LOADING PRESSURE NOTE PILOT IS SHOWN HERE ABOVE THE MAIN VALVE BODY FOR ILLUSTRATION PURPOSES ONLY SEE FIGURES 1 AND 8 FOR ACTUAL PILOT POSITION AND APPEARANCE OF PILOT SUPPLY LINE AND LOADING PRESSURE TUBING Figure 2 Type 92C with Type 6392 Pilot Operational Schematic Soft Seats When tight shutoff is required and service conditions permit their use elastomer seats are available for ASME Class VI shutoff Equal Inlet and Outlet Pressure Ratings Eliminate the need for overpressure protection for the downstream side of the regulator Choice of Steel Stainless steel or Iron Bodies Steel and stainless steel valve construction hel
11. 2 73 16 59 6 92 51 11 59 4 90 86 19 55 6 81 60 13 64 477 68 15 46 472 35 795 5 77 25 568 4 09 63 14 32 6 70 43 9 77 4 57 82 18 64 6 99 57 12 96 4 90 94 2137 6 89 66 1500 4 79 38 863 602 26 6 00 4 08 54 1227 6 67 35 7 95 4 33 73 16 59 6 80 49 11 14 4 61 91 20 68 7 05 63 1432 4 89 1 To determine capacities for pressure loaded Type 92C regulators multiply the printed value by the appropriate value shown Table 7 2 Capacities for outlet pressure settings lower than 50 psig 3 4 bar are based on a 2 to 1 ratio of outlet pipe size to main valve body size 3 20 to 150 psig 1 4 to 10 3 bar pilot control spring only red spring 1 92727142 11 Bulletin 71 2 92C 190 TYPICAL PERFORMANCE 180 NPS 1 DN 25 TYPE 92C 3 4 INCH 19 mm ORIFICE SIZE 170 160 m amp La 150 o o Fa 140 w 5 130 o 200 PSIG 120 13 8 bar 175 PSIG 110 12 1 bar 100 0 500 1000 1500 2000 2500 227 454 680 907 1134 26A3807 A A2509 2 250 PSIG 17 2 bar 3000 1361 3500 FLOW RATE POUNDS PER HOUR SATURATED STEAM Kg h NOTES 1 INLET PRESSURE IS NOTED ON EACH CURVE 2 TO CONVERT FLOW TO Kg h MULTIPLY BY 0 4536 Figure 6 Typical Performance Curve for Pilot Operated Regulator 1588 OUTLE
12. 2400 1089 1700 771 250 172 1600 726 2400 1089 2000 907 3000 1361 2100 953 300 20 7 2000 907 NE 2400 1089 IER 2500 1134 150 10 3 700 318 1000 454 800 363 1200 544 850 386 age 200 13 8 1200 544 2100 953 1400 635 2200 998 1500 680 250 17 2 1600 726 2400 1089 2000 907 3000 1361 2100 953 300 20 7 2000 907 3000 1361 2400 1089 3600 1633 2500 1134 175 12 1 800 363 1100 499 900 408 1400 635 950 431 163 200 13 8 1000 454 2000 907 1100 499 2000 907 1300 590 250 17 2 1500 680 2300 1043 1800 816 2800 1270 1900 862 300 20 7 2000 907 3000 1361 2400 1089 3600 1633 2500 1134 1 To determine capacities for pressure loaded Type 92C regulators multiply the printed value by the appropriate value shown in Table 7 2 To convert capacity to kg hr multiply by 0 4536 Table 6 Water Flow Capacities and Regulating C Values for Type 92C Regulator Based on 10 Percent Proportional Band INLET NPS 1 2 DN 15 NPS 3 4 DN 20 NPS 1 DN 25 PRESSURE MAIN VALVE MAIN VALVE MAIN VALVE SETTING Standard Optional Standard Optional a m 3 4 Inch 19 3 mm 9 16 Inch 14 mm 3 4 Inch 19 1mm 9 16 Inch 14 mm Psig Bar Psig Bar Orifice Size Orifice Size Orifice Size Orifice Size m3h C m3h C GPM mih C rm m3h C GPM mem C 20 14 12 2 73 8 13 17 3 86 4 23 1
13. 3 2 95 3 31 22 500 562 14 3 18 3 68 25 17 14 3 48 3 11 20 454 436 15 3 40 3 27 27 6 3 5 91 16 3 63 3 58 30 24 16 363 326 23 522 461 19 432 366 28 636 556 19 432 3 80 50 50 34 15 341 228 27 613 402 19 432 283 42 954 621 25 568 3 75 75 52 20 454 243 32 727 887 25 568 295 48 1090 577 28 636 3 28 100 69 19 432 190 36 818 364 25 568 256 49 11 14 503 681 3 08 150 103 17 386 143 32 727 264 24 545 200 43 977 3 57 28 636 2 36 25 17 14 3 48 347 20 454 495 15 3 40 3 63 24 545 5 94 17 3 86 4 13 30 24 16 363 339 25 568 550 18 4 10 395 28 636 6 07 19 432 423 iom Le 34 21 477 332 35 795 554 24 545 379 40 9 10 628 27 6 13 415 75 52 21 477 263 36 818 447 27 613 3 29 48 11 00 5 91 31 7 04 3 81 100 69 27 613 282 41 931 426 33 7 50 349 54 1227 564 38 863 3 95 150 103 25 568 244 37 3 34 681 254 49 11 14 4 11 34 7 72 2 86 30 24 13 295 331 21 477 526 16 363 391 25 568 6 17 17 386 421 50 34 22 500 357 35 7 95 573 24 545 404 41 931 676 27 613 4 51 150 10 75 52 25 568 37 41 931 528
14. Bulletin 71 2 92C November 2009 Type 92C Self Powered Control Valve W3110 TYPE 92C PRESSURE LOADED CONTROL VALVE Figure 1 Type 92C Pressure Regulator Introduction The Type 92C regulator Figure 1 is an economical cast iron steel or stainless steel pressure reducing regulator used in steam liquid or hot air service This regulator is available with a Type 6392 pilot for use as a pilot operated regulator or without a pilot for use as a pressure loaded regulator The pilot operated version uses inlet pressure as the operating medium no separate air supply is required The pressure loaded version is used where remote adjustment of the regulator pressure setting is required a Type 67 1301F regulator or a 670 panel loader can be used as the loading regulator A Type 6492HM or 6492HTM safety override pilot is also available for the Type 92C The Type 6392 pilot is used in a series installation with the Type 6492HM or 6492HTM safety override pilot installed on the upstream valve The Type 6492HM or 6492HTM www fisherregulators com W3111 2 TYPE 92C SELF POWERED CONTROL VALVE WITH TYPE 6392 PILOT safety override pilot senses pressure downstream of the second valve and prevents pressure from rising above safe operating pressure in the event the downstream valve fails This system is approved by ASME B31 1 1989 122 14 2 A and can replace an ASME safety valve when vent piping is not practical and upstream press
15. PE 6492HM SAFETY OVERRIDE PILOT TYPE 92C MAIN VALVE E0557 GG INLET PRESSURE EE OUTLET PRESSURE EZ ATMOSPHERIC PRESSURE LOADING PRESSURE Umm INTERMEDIATE PRESSURE TYPE 6392 PILOT TYPE 6392 PILOT TYPE 92C MAIN VALVE Figure 4 Type 92C with Type 6492HM Safety Override Pilot Operational Schematic Table 4 Type 6492 Safety Override Pilot Spring Ranges and Minimum Differential Pressures MINIMUM PRESSURE AT WHICH TYPE SPRING RANGES PSIG bar SPRING COLOR MONITORING PILOT CAN BE SET PSIG bar 10to 30 0 69 to 2 1 Yellow 5 0 34 over normal distribution pressure 6492HM 25 0 75 1 7 to 5 2 Green 10 0 69 over normal distribution pressure 70 to 150 4 8 to 10 3 Red 80 to 250 5 5 to 17 2 6492HTM Unpainted 15 100 1 0 to 6 9 Pressure Loaded Regulator Refer to the schematic in Figure 3 With a pressure loaded regulator a remote adjustable loading regulator provides loading pressure to the top of the main valve diaphragm Downstream pressure registers under the main valve diaphragm through the pilot tube When downstream pressure decreases it registers under the diaphragm and allows the stem and plug to move downward thereby opening the valve to increase downstream pressure When downstream pressure increases it registers under the diaphragm and forces the stem and plug to move upward The upward force of the spring causes the valve to close which decreases f
16. PS 3 4 DN 20 NPS 1 DN 25 SETTING PRESSURE MAIN VALVE MAIN VALVE MAIN VALVE Standard Optional Standard Optional af perd eu mm 3 4 Inch 19 mm 9 16 Inch 14 mm 3 4 Inch 19 mm 9 16 Inch 14 mm Psig Bar Psig Bar Orifice Size Orifice Size Orifice Size Orifice Size GPM m3h C GPM C GPM mh C GPM C GPM m3h C 29 659 599 23 522 473 45 10 23 6 50 32 727 4 58 58 13 18 6 77 40 9 09 4 68 63 1432 5 72 48 10 91 4 29 50 1136 3 84 27 613 6 17 20 454 4 58 31 7 04 6 29 22 500 4 51 42 954 666 30 681 473 55 12 0 6 90 38 863 478 65 1477 6 11 48 10 91 449 53 12 05 4 11 55 12 50 3 78 28 636 623 20 454 4 51 35 7 95 633 25 568 4 63 51 1159 684 34 7 72 4 65 71 16 14 6 89 48 10 91 471 79 17 96 6 32 55 12 50 4 40 e 59 13 44 4 11 30 681 647 18 4 10 3 93 34 7 72 664 22 5 00 4 30 47 10 68 6 87 31 7 04 4 58 68 1546 6 97 47 1068 477 87 1978 7 18 57 12 96 4 69 62 14 09 445 36 8 18 639 26 6 00 4 91 61 13 86 6 88 41 931 4 59 79 1796 7 01 54 1227 477 60 13 64 448 38 864 6 02 28 6 36 4 65 51 1159 656 38 863 4 9
17. T PRESSURE bar 300 PSIG 20 7 bar 4000 1814 Table 7 Capacity Factors for Pressure Loaded Type 92C Regulators with 3 to 5 psi 0 21 to 0 35 bar Droop MAIN VALVE SIZE ORIFICE SIZE ERSTER il DN Inch mm LOADED REGULATORS 4 2 15 9 16 14 0 50 9 16 14 0 65 3 4 20 3 4 19 0 60 9 16 44 0 80 4 25 3 4 19 0 75 12 Bulletin 71 2 92C 1 2 3 4 1 NPT 6 06 154 gt DIAMETER 4 56 116 0 25 6 4 2 25 1 4 NPT 57 2 DOWNSTREAM CONTROL LINE CONNECTION INCHES mm 16A3176 D A2512 2 Figure 7 Dimensions Bulletin 71 2 92C Ordering Information When ordering specify Application 1 Range of temperatures 2 Range of inlet pressures maximum normal minimum 3 Outlet pressure setting 4 Range of flow rates maximum normal minimum controlled 5 Body size 6 Alternate materials offered in Specification section Ordering Guide Type Select One O 92C Pilot operated 92C Pressure loaded 92C with Safety Override Pilot Body Size Select One NPS 1 2 DN 15 NPS 3 4 DN 20 NPS 1 DN 25 Body Material and End Connection Style Select One Cast iron NPT WCC Steel O NPT CL150 RF CL300 RF L PN 16 25 40 Stainless steel NPT CL150 RF O CL300 RF PN 16 25 40 eR 9 Regulator Refer to the Specifications section
18. ard a Psig Bar Psig Bar 14 mm 3 4 Inch 19 mm 3 4 Inch 19 mm Orifice Size Orifice Size 14 mm Orifice Size 14 mm Orifice Size Orifice Size 20 1 4 170 77 1 230 104 180 81 7 300 136 200 90 7 25 1 7 200 90 7 280 127 210 95 3 380 172 230 104 30 2 1 240 109 340 154 270 122 410 186 280 127 5 3 0 3469 50 3 4 250 113 440 200 310 141 680 308 410 186 75 5 2 370 168 590 268 450 204 880 399 500 227 100 6 9 370 168 710 322 500 227 980 445 600 272 150 10 3 400 181 740 336 560 254 1000 454 660 299 25 17 210 95 3 300 136 220 99 8 360 163 250 113 30 2 1 240 109 390 177 280 127 430 195 300 136 50 3 4 360 163 600 272 410 186 680 308 450 204 108 0 699 75 5 2 400 181 680 308 500 227 900 408 580 263 100 6 9 550 249 830 376 680 308 1100 499 770 349 150 10 3 600 272 880 399 710 322 1150 522 800 363 30 2 1 220 99 8 350 159 260 118 410 186 280 127 50 3 4 380 172 610 277 430 195 720 327 480 218 15 1 03 75 5 2 480 218 800 363 570 259 930 422 620 281 100 6 9 620 281 960 435 750 340 1250 567 830 376 150 10 3 650 295 1100 499 780 354 1300 590 880 399 35 24 240 109 370 168 270 122 420 191 290 132 50 3 4 380 172 630 286 430 195 720 327 480 218 m 75 5 2 550 249 870 395 630 286 950 431 670 304 100 6 9 700 318 1150 522 800 363 1300 590 900 408
19. de open steam sizing coefficient see Specifications section To convert capacity to kilograms per hours multiply the capacity pounds per hour by 0 4536 2 If the steam is superheated or if the pressure drop across the regulator is lower than critical absolute outlet pressure greater than approximately one half the absolute inlet pressure use the sizing nomographs in Catalog 10 Liquid Capacities Table 6 gives regulating capacities in U S gallons per minute of water and in cubic meters per hour of water To determine capacities for pressure loaded regulators multiply the approximate Table 6 value by the capacity factor listed in Table 7 To determine regulating capacities at pressure settings not given in Table 6 or to determine wide open capacities for relief sizing at any inlet pressure use the Catalog 10 liquid sizing procedures in conjunction with the appropriate liquid coefficients C and Km see Specifications section Liquid Sizing for Liquids Other than Water Where Q Flow in GPM AP Valve differential in psi C Valve sizing coefficient see Table 6 G Specific Gravity Example NPS 1 DN 25 body 3 4 inch 19 mm orifice size Glycol Specific Gravity 1 11 Pinet 150 psig 10 3 bar Pout Setpoint 50 psig 3 4 bar Capacity based on 10 Droop from setpoint Pout at full flow 50 psi 3 4 bar setpoint 5 psi 0 35 bar Droop 45 psi 3 1 bar AP 150 45 105 psi 7 2 bar C 6 89
20. es Inc USA Headquarters McKinney Texas 75069 1872 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Shanghai China 201206 Tel 86 21 2892 9000 Europe Bologna Italy 40013 Tel 39 051 4190611 Middle East and Africa Dubai United Arab Emirates Tel 971 4811 8100 Natural Gas Technologies Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Singapore Singapore 128461 Tel 65 6777 8211 Europe Bologna Italy 40013 Tel 39 051 4190611 Gallardon France 28320 Tel 33 0 2 37 33 47 00 TESCOM Emerson Process Management Tescom Corporation USA Headquarters EIk River Minnesota 55330 2445 USA Tel 1 763 241 3238 Europe Selmsdorf Germany 23923 Tel 49 0 38823 31 0 For further information visit www fisherregulators com The Emerson logo is a trademark and service mark of Emerson Electric Co All other marks are the property of their prospective owners Fisher is a mark owned by Fisher Controls Inc a business of Emerson Process Management 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 right to modi
21. fy or improve the designs or specifications of such products at any time without notice Emerson Process Management does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any Emerson Process Management product remains solely with the purchaser amp EMERSON Emerson Process Management Regulator Technologies Inc 1995 2009 All Rights Reserved Process Mar gement
22. llowable loading pressure is 250 psig 17 2 bar for cast iron construction and 300 psig 20 7 bar for steel and stainless steel construction the maximum allowable diaphragm differential pressure of 150 psi 10 3 bar for cast iron steel and stainless steel constructions must not be exceeded Orifice Sizes NPS 1 2 DN 15 Main Valve 9 16 inch 14 mm NPS 3 4 and 1 DN 20 and 25 Main Valves 3 4 inch 19 mm is standard 9 16 inch 14 mm is optional Flow Capacity See Capacity Information section Flow and Sizing Coefficients See Tables 2 and 3 Proportional Band 1096 Construction Materials Type 92C Self Powered Control Valve Main Valve Body and Diaphragm Flange Cast iron Steel or Stainless steel Orifice and Valve Stem Heat treated 416 Stainless steel Main Valve Plug Metal Seat Construction Heat treated 416 Stainless steel Main Valve Disk and Disk Holder Elastomeric Seat Construction Disk Ethylenepropylene EPR Disk Holder Heat treated 416 Stainless steel Main Valve Diaphragms and Valve Plug Springs Stainless steel Stem Guides Heat treated 416 Stainless steel Main Valve Plug Guides Cast Iron Construction Brass Steel Construction Heat treated 416 Stainless steel Type 6392 Pilot Pilot Body and Pilot Spring Case Cast iron Steel or Stainless steel Pilot Valve Plug Metal Seat Construction Heat treated 416 Stainless steel Pilot Valve Disk and Disk Holder Elastomeric Seat Construction Disk Ethylene
23. low to the downstream system thus decreasing downstream pressure In hot air service supply air above the diaphragm becomes compressed and is vented to the atmosphere If a steam supply is used the steam is vented downstream Safety Override Pilot Refer to the schematic in Figure 4 Once placed in operation the upstream Type 6392 pilot senses the intermediate pressure between both valves and the Type 6492HM or 6492HTM pilot senses downstream pressure of the second valve As demand for flow increases intermediate pressure will fall causing the Type 6392 pilot to open As the Type 6392 pilot valve opens loading pressure to the main valve increases opening the main valve The Type 6492HM or 6492HTM safety override pilot remains open because its setpoint is above the setpoint of the downstream valve In the unlikely event that the downstream valve fails open downstream pressure will rise above the downstream valve s setpoint This pressure is sensed by the Type 6492HM or 6492HTM safety override pilot As downstream pressure increases the safety override pilot closes reducing loading pressure to the main Bulletin 71 2 92C PRESSURE DROP ACROSS VALVE bar 2 00 4 00 6 00 8 00 10 0 12 0 20 3 4 INCH 19 mm ORIFICE SIZE 1 00 DIAPHRAGM DIFFERENTIAL PSI en 9 16 INCH 14 mm m di MN DIAPHRAGM DIFFERENTIAL bar 0 50 ORIFICE SIZE 100 150 200
24. propylene EPR Disk Holder Heat treated 416 Stainless steel Pilot Diaphragms Stainless steel Pilot Stem Guides Heat treated 416 Stainless steel Pilot Valve Plug Guides Cast Iron Construction Brass Steel Construction Heat treated 416 Stainless steel Pilot Control Spring 416 or 17 7PH Stainless steel Pilot Inlet Screen Stainless steel Loading Pressure Tubing Copper used for pilot operated regulator only or Stainless steel Pilot Fittings Brass or Stainless steel Pilot Supply Line Steel pipe nipple Types 6492HM and 6492HTM Safety Override Pilots Pilot Valve Body WCC steel and CF8M Stainless steel Valve Guide For Steel Body 416 Stainless steel For Stainless steel Body 316 Stainless steel Valve Spring 302 Stainless steel Orifice For Steel Body 416 Stainless steel For Stainless steel Body 316 Stainless steel Valve Stem For Steel Body 410 416 Stainless steel For Stainless steel Body 316 Stainless steel continued Specifications continued Bulletin 71 2 92C Diaphragm 302 Stainless steel Lower Spring Seat For Type 6492HM Aluminum For Type 6492HTM Steel or Stainless steel Spring For Type 6492HM Steel For Type 6492HTM Stainless steel Upper Spring Seat Steel Spring Case Steel or Stainless steel Pipe Plug Steel or Stainless steel Maximum Material Temperature Capabilities 2 Metal Diaphragm and Seat Cast Iron Construction 40 to 406 F 40 to 208 C Steel Construction
25. ps resist piping stresses commonly encountered in steam applications Ease of Installation Lightweight compact construction is easy to install and requires a minimum space for installation For pilot operated regulators supply pressure to the pilot is supplied from the inlet side of the main valve through piping furnished with the regulator Ease of Maintenance Main valve and pilot valve plug and seat can be removed for inspection or maintenance without disassembling piping connections and without removing the diaphragm Pilot inlet screen is easily removed with the seating parts for inspection and cleaning Diaphragms can be removed without disturbing seating parts Ease of Conversion If application requirements change the regulator can be converted from a pressure loaded regulator to a pilot operated regulator or vice versa by adding or removing the pilot and pilot piping no changes to the main valve construction are required BLEED RESTRICTION LOADING REGULATOR Y MAIN VALVE PLUG 36A1546 B 2946 MAIN VALVE SPRING EHE INLET PRESSURE ES OUTLET PRESSURE LOADING PRESSURE Bulletin 71 2 92C bg OPTIONAL PIPING FOR STEAM LOADING MAIN VALVE DIAPHRAGM PITOT TUBE Figure 3 Type 92C Pressure Loaded Control Valve Operational Schematic Principle of Operation Pilot Operated Regulator Refer to the schematic in Figure 2 Pilot supply pressure is
26. ure does not exceed 400 psig 27 6 bar Local codes and standards may require approval by an appropriate authority prior to installation Features Shutoff Performance The machine lapped flat face seating surfaces featured in the Type 92C regulator and Type 6392 pilot design have been time proven to minimize seat leakage when downstream demand is zero and the regulator is shutoff amp s EMERSON Process Management D100137X012 Bulletin 71 2 92C Specifications Body Sizes and End Connection Styles Cast Iron 1 2 3 4 1 NPT Steel or Stainless Steel NPS 1 2 3 4 or 1 DN 15 20 or 25 NPT CL150 RF CL300 RF or PN 16 25 40 Maximum Allowable Inlet and Pilot Supply 1 Cast Iron Construction 250 psig 17 2 bar Steel and Stainless steel Construction 300 psig 20 7 bar Regulator Pressure Drops Minimum 15 psi 1 0 bar Maximum Operating Do not exceed the pressure drops in the capacity tables Maximum Emergency 2 Cast Iron Construction 250 psi 17 2 bar Steel and Stainless steel Construction 300 psi 20 7 bar Outlet Pressure Range See Table 1 Maximum Outlet Pressures 2 Maximum Operating Outlet Pressure 150 psig 10 3 bar Maximum Emergency Outlet Casing Pressure Cast Iron Construction 250 psig 17 2 bar Steel and Stainless steel Construction 300 psig 20 7 bar Loading Pressure For Pressure Loaded Regulator 2 See Figure 5 to determine loading pressure Maximum a
27. verpressure protection should be provided by the user if the maximum inlet pressure exceeds the downstream pressure of the system The pressure and temperature limitations in the Specifications Section must be observed The Type 92C regulator may be installed in any orientation However on steam service the regulator should not be installed at the bottom of a tall vertical pipeline where condensate could collect and create a pressure head affecting regular performance A downstream control line is required for pilot operated regulators the control line is not furnished with the regulator An adjustable loading pressure regulator and loading pressure piping are required for pressure loaded regulators Bulletin 71 2 92C Capacity Information Steam Capacities Typical regulating capacities in pounds of saturated steam per hour are shown in Table 5 for pilot operated regulators A typical performance curve is shown in Figure 6 To determine capacities for pressure loaded regulators multiply the appropriate Table 5 value by the capacity factor listed in Table 7 1 If the steam is saturated and the pressure drop across the regulator is critical absolute outlet pressure equal to approximately one half or less of the absolute inlet pressure use the equation Q Cs where Maximum flow capacity pounds of saturated steam per hour P4aps Absolute inlet pressure gauge inlet pressure plus 14 7 psi C Wi
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