Bulletin 74.3:ACE97 June 2013 type aCe97 Pad-Depad valve • Bubble Tight Shutoff • Frictionless Pilot Valve • Pilot Controlled • Maximum Vapor Space Control • Stainless Steel • Self-Contained • Diagnostics • Fully Balanced W8161 D102721X012 Figure 1. Type ACE97 Pad-Depad Valve www.fisherregulators.
Bulletin 74.3:ACE97 Specifications Pad Specifications General Type ACE97 Specifications Pad Body Sizes NPS 1/2, 1, and 2 / DN 15, 25, and 50 Pressure Registration External Maximum Operating Inlet Pressure(1) 200 psig / 13.8 bar Temperature Capabilities Nitrile (NBR): -20 to 180°F / -29 to 82°C Fluorocarbon (FKM): 0 to 212°F / -18 to 100°C Ethylenepropylene (EPDM - FDA): -20 to 212°F / -29 to 100°C Perfluoroelastomer (FFKM): -20 to 212°F / -29 to 100°C Maximum Main Valve Inlet Pressure(1) 200 psig 13.
Bulletin 74.3:ACE97 depad pilot valve Depad main valve vent actuator gas inlet pad valve inlet filter E0673 to AND FROM tank Figure 2. Type ACE97 Pad-Depad Valve Parts Single Array Manifold (SAM): Provides sense line connection and main valve connection through a single tank nozzle. Purge Meters: Prevents corrosive tank vapors from damaging upstream equipment.
Bulletin 74.3:ACE97 loading pressure exhausted back to tank on/off diagnostic gauge depad pilot adjustable deadband poppet cage controlled pressure range spring regulator depad main valve o-ring seat inlet vent actuator inlet bleed rolling diaphragm sensing connection open pilot E0005 diagnostic port main valve spring INLET PRESSURE ATMOSPHERIC PRESSURE TANK PRESSURE PILOT LOADING PRESSURE inert gas in VENT HEADER PRESSURE tank connection pad valve INLET BLEED PRESSURE Figure 3.
Bulletin 74.3:ACE97 Table 1. Control Pressure Ranges Controlled Pressure RANGEs Pad Setpoint Depad Setpoint (Above Pad) SPRING FREE LENGTH SPRING WIRE DIAMETER Inch w.c. mbar Inch w.c. mbar Inch mm Inch mm 0.5 to 3 1 to 7 4 to 10 10 to 25 3.08 78.2 0.105 2.67 0.5 to 7 1 to 17 4 to 6 10 to 15 4.00 102 0.092 2.34 3 to 13 7 to 32 4 to 16 10 to 40 3.73 94.7 0.156 3.96 4 to 10 10 to 25(1) 16 to 78 40 to 194(1) 3.73 94.7 0.156 3.96 2.90 73.
Bulletin 74.3:ACE97 Table 2. Flow Rate Conversion multiply maximum pump rate U.S. GPM U.S. GPH m3/hr Barrels/hr Barrels/day by 8.021 0.1337 1.01 5.615 0.2340 to obtaiN: SCFH SCFH Nm3/h SCFH SCFH Table 3. C orrection Factors (For Converting Nitrogen Flow Rates to Other Gas Flow Rates) BLANKET GAS Natural Gas Air Dry CO2 SPECIFIC GRAVITY 0.60 1.00 1.52 Correction Factor = CORRECTION FACTOR 1.27 0.99 0.80 0.985 SG Table 4.
Bulletin 74.3:ACE97 Table 7. NPS 1/2 / DN 15 Pad Valve Capacities of 0.97 Specific Gravity Nitrogen INLET PRESSURE psig 25 30 40 50 60 70 80 90 100 120 140 160 180 200 bar 1.7 2.1 2.8 3.4 4.1 4.8 5.5 6.2 6.9 8.3 9.7 11.0 12.4 13.8 kg/cm2 1.8 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7.0 8.4 9.8 11.2 12.7 14.1 kPa 172 207 276 345 414 483 552 621 690 828 966 1103 1241 1379 SCFH 250 290 370 450 530 610 690 780 860 1020 1180 1340 1500 1660 CAPACITIES IN SCFH / Nm3/h OF NITROGEN Cv = 0.2 Cv = 0.4 Nm3/h SCFH 6.7 550 7.
Bulletin 74.3:ACE97 Table 10. NPS 1 / DN 25 Depad Valve Capacities of 1.0 Specific Gravity Air flow capacity in scfh / Nm3/h of 1.0 specific gravity air differential pressure(1) Cv = 3 Cv = 6 Cv = 12 Cv = 17 Inch w.c. mbar SCFH Nm /h SCFH Nm /h SCFH Nm /h SCFH Nm3/h 2 3 4 5 5 7 10 12 180 220 250 280 4.8 5.9 6.7 7.5 360 440 510 570 9.6 11.8 13.7 15.3 730 890 1030 1150 19.6 23.9 27.6 30.8 1030 1260 1460 1630 27.6 33.8 39.1 43.7 6 7 8 9 10 15 17 20 22 25 310 340 360 380 400 8.3 9.
Bulletin 74.3:ACE97 Table 11. NPS 2 / DN 50 Depad Valve Capacities of 1.0 Specific Gravity Air flow capacity in scfh / Nm3/h of 1.0 specific gravity air differential pressure(1) Cv = 20 Cv = 35 Cv = 70 Inch w.c. mbar scfh Nm /h scfh Nm /h scfh Nm3/h 2 3 4 5 5 7 10 12 1210 1490 1720 1920 32.4 39.9 46.1 51.5 2130 2600 3010 3360 57.1 69.7 80.7 90.0 4260 5210 6020 6730 114 140 161 180 6 7 8 9 10 15 17 20 22 25 2100 2270 2430 2580 2720 56.3 60.8 65.1 69.1 72.
Bulletin 74.3:ACE97 Table 12. NPS 3 / DN 80 Depad Valve Capacities of 1.0 Specific Gravity Air flow capacity in scfh / Nm3/h of 1.0 specific gravity air differential pressure(1) Cv = 90 Cv = 115 Cv = 140 Inch w.c.
Bulletin 74.3:ACE97 Table 13. NPS 4 / DN 100 Depad Valve Capacities of 1.0 Specific Gravity Air flow capacity in scfh / Nm3/h of 1.0 specific gravity air differential pressure(1) Cv = 150 Cv = 200 Cv = 280 Inch w.c.
Bulletin 74.3:ACE97 18.7 / 174 12.5 / 318 1/2 NPT SENSING CONNECTION NPS 1 / DN 25, CL150 RF VAPOR RECOVERY CONNECTION 22.5 / 572 C 6.0 / 152 B TANK CONNECTION 1 NPT BLANKETING GAS CONNECTION A 1/2 NPT SENSING CONNECTION 7.2 / 183 3.0 / 76 2.5 / 64 NPS 1 x 1 x 1 OR 2 / DN 25 x 25 x 25 OR 50 with options 12.5 / 318 24.1 / 612 12.3 / 312 VAPOR RECOVERY CONNECTION 1/2 NPT SENSING CONNECTION C 1/2 NPT SENSING CONNECTION B 8.1 / 206 TANK CONNECTION 1 NPT BLANKETING GAS CONNECTION 2.5 / 64 7.
Bulletin 74.3:ACE97 12.5 / 318 13.3 / 337 BLANKETING GAS CONNECTION VAPOR RECOVERY CONNECTION 1/2 NPT SENSING CONNECTION C B 7.3 / 185 TANK CONNECTION A 8.0 / 203 3.0 / 76 2.5 / 64 NPS 1/2 x 1 x 1 OR 2 / DN 15 x 25 x 25 OR 50 with options 12.5 / 318 NPS 1 or 2 / DN 25 or 50, CL150 RF VAPOR RECOVERY CONNECTION BLANKETING GAS CONNECTION 13.3 / 337 C B A 8.0 / 203 3.0 / 76 INCHES / mm TANK CONNECTION NPS 1/2 x 1 x 2 / DN 15 x 25 x 50 WITH SINGLE ARRAY MANIFOLD Figure 5.
Bulletin 74.3:ACE97 Information Required In order to complete the specification worksheet, the following information must be provided. Operating pressures and temperatures must be within the ranges listed within this bulletin. Please specify measurement units: Imperial (USA) _____ or Metric _____ Pad Information 1. Maximum Inert Gas Flow - SCFH or Nm3/hr: _____________ or Pad Valve Cv: _____________ 2. Inert Gas: _____________ or Inert Gas Specific Gravity: _____________ 3.
Bulletin 74.3:ACE97 Ordering Guide Pad and Depad Valve Bodies (Select One) CF8M Stainless steel CF3M Stainless steel Body Size and Coefficient (Select One from Each Category) Pad Valve Body NPS 1/2 / DN 15 NPS 1 / DN 25 NPS 2 / DN 50 Cv = 0.4 Cv = 1 Cv = 20 Cv = 2 Cv = 45 Cv = 0.2 Cv = 4 Cv = 60 Cv = 7.
Bulletin 74.3:ACE97 Industrial Regulators Natural Gas Technologies TESCOM Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Tescom Corporation USA - Headquarters McKinney, Texas 75069-1872, USA Tel: +1 800 558 5853 Outside U.S. +1 972 548 3574 USA - Headquarters McKinney, Texas 75069-1872, USA Tel: +1 800 558 5853 Outside U.S.
