Type ACE97 Instruction Manual Form 5665 November 2011 Type ACE97 Pad-Depad Valve DEPAD PILOT VALVE DEPAD MAIN VALVE W8161 VENT ACTUATOR GAS INLET PAD VALVE TO TANK Figure 1. Type ACE97 Pad-Depad Valve (NPS 1/2 / DN 15 Pad Valve / 1 NPT Depad Valve Shown) ! WARNING Fisher® pad-depad valves must be installed, operated, and maintained in accordance with federal, state, and local codes, rules and regulations, and Emerson Process Management Regulator Technologies, Inc.
Type ACE97 Specifications Ratings and specifications for the Type ACE97 Pad-Depad valve are listed in the Specifications section below. Factory specifications are stamped on the nameplate fastened to the actuator of the valve.
Type ACE97 LOADING PRESSURE EXHAUSTED BACK TO TANK ON/OFF DIAGNOSTIC GAUGE DEPAD PILOT ADJUSTABLE DEADBAND REGULATOR CONTROLLED PRESSURE RANGE SPRING E POPPET CAGE VENT O-RING SEAT ACTUATOR INLET BLEED INLET RESSURE PRESSURE PHERIC PRESSURE G PRESSURE EDIATE PRESSURE UPPLY PRESSURE EDIATE BLEED PRESSURE PANSION PRESSURE M PRESSURE RESSURE S PRESSURE E0005 RESSURE RESSURE PRESSURE ST OADING PRESSURE EADER PRESSURE LEED PRESSURE DEPAD MAIN VALVE ROLLING DIAPHRAGM SENSING CONNECTION DIAGNOSTIC PO
Type ACE97 LOADING PRESSURE EXHAUSTED BACK TO TANK URE SSURE C PRESSURE SSURE E PRESSURE Y PRESSURE E BLEED PRESSURE ON PRESSURE SSURE URE SSURE URE URE SURE DEPAD PILOT CONTROLLED PRESSURE RANGE SPRING REGULATOR NG PRESSURE R PRESSURE PRESSURE RE ON/OFF DIAGNOSTIC GAUGE DEPAD MAIN VALVE Vent POPPET VENT ACTUATOR CAGE O-RING SEAT INLET ROLLING DIAPHRAGM SENSING CONNECTION CLOSED PILOT DIAGNOSTIC PORT MAIN VALVE SPRING E0004 INLET PRESSURE ATMOSPHERIC PRESSURE TANK PRESSURE INERT GAS IN
Type ACE97 PRESSURE ET PRESSURE SPHERIC PRESSURE NG PRESSURE MEDIATE PRESSURE SUPPLY PRESSURE MEDIATE BLEED PRESSURE XPANSION PRESSURE UM PRESSURE PRESSURE SS PRESSURE PRESSURE PRESSURE T PRESSURE UST LOADING PRESSURE HEADER PRESSURE BLEED PRESSURE LOADING PRESSURE EXHAUSTED BACK TO TANK DEPAD PILOT ADJUSTABLE DEADBAND POPPET CAGE INLET DEPAD MAIN VALVE VENT O-RING SEAT ACTUATOR ROLLING DIAPHRAGM SENSING CONNECTION SSURE SSURE E SSURE SSURE ED PRESSURE ESSURE E CONTROLLED PRESSURE RANGE SPRING
Type ACE97 DEPAD DIAGNOSTIC GAUGE TANK VAPOR SPACE PRESSURE GAUGE VENT CONNECTION PAD DIAGNOSTIC GAUGE SENSING CONNECTION INLET PRESSURE GAUGE INLET VALVE SENSING LINE BLANKETING GAS SUPPLY LINE LINE STRAINER VALVE TANK CONNECTION BLANKETING GAS CONNECTION SHUTOFF VALVE TANK VALVE EMERGENCY TANK VENT NORMAL TANK VENT VAPOR SPACE LIQUID E0629 Figure 5.
Type ACE97 must agree with the system that you are Padding (blanketing) or Depadding (recovering). The serial number will be needed in any communication with your local Sales Office. 3. Clean the gas padding (blanketing) supply lines of all dirt and foreign material before connecting them to the Type ACE97 Pad-Depad valve. 4. The valve should be mounted above the tank with the actuator case in a horizontal position. Four connections are required (see Figure 5): a.
Type ACE97 ADJUSTING SCREW TUBING LOCKNUT COUPLING ACTUATOR E0679 E0678 Figure 6. Unthreading the Adjusting Coupling Startup, Adjustment, and Shutdown CAUTION If required, tank vents (normal and emergency) must be in place and operating. Figure 7. Changing the Pad Setpoint Adjustment The setpoint of this unit is factory set. If an adjustment is to be made, it should be made in small increments while the unit is controlling tank pressure.
Type ACE97 All O-rings, gaskets, and seals should be lubricated with a good grade of general purpose lubricant and installed gently rather than forced into position. Approved lubricants, sealants, thread protectors, and adhesives are as follows: Table 2. Diagnostic Analysis Pressure Ranges DIAGNOSTIC STATUS Equal to inlet supply pressure Pilot and main valves are closed. Tank pressure is at or above set pressure. Slightly below inlet supply pressure Pilot valve supplies gas to tank.
Type ACE97 Table 5.
Type ACE97 Table 9.
Type ACE97 are shown in Table 2. In order to evaluate a valve, examine the valve nameplate to determine the Cv and inlet pressure range (main valve spring). There are four pressures involved in evaluating a valve: actual inlet pressure, pressure to start opening pilot valve, pressure to start opening main valve, and pressure to fully open main valve. Actual Inlet Pressure: The gas pressure supplied to the inlet of the valve. This is the maximum diagnostic pressure.
Type ACE97 ROLLING DIAPHRAGM (KEY 38) ROLLING DIAPHRAGM (KEY 38) POPPET (STEM) (KEY 42) POPPET (STEM) (KEY 42) CROSS-DRILLED HOLE W8162 CROSS-DRILLED HOLE O-RING (KEY 39) PISTON (KEY 37) CAGE (KEY 52) W8181 Figure 8. NPS 1/2 / DN 15 Pad Valve Cage Assembly 2. Unthread the lower cage (key 110). 3. Remove the rain cap (key 109). 4. Unthread the upper cage (key 106). 5. Remove the return spring (key 101). 6. Place a pin through the follower (key 103) and unthread the nut (key 31).
Type ACE97 5. Remove the plug (key 22) from the main valve. Depad Main Valve Disassembly 6. Insert wooden dowel rod (or similar blunt tool) through the bottom of the bonnet bore to remove the cage sub-assembly (keys 35 and 40). Refer to Figures 16, 17, and 18. Pad Valve Cage Disassembly (NPS 1/2 / DN 15 valve) 2. For 1 NPT Main Valve: Unthread the bonnet (key 87) from the depad valve body (key 91). Remove the retaining ring (key 89), cap (key 90), and O-ring (key 88).
Type ACE97 Assembly Before proceeding, read the following instructions. Refer to the figures that pertain to your valve (Figures 11 through 20) and review the list of approved lubricants, sealants, and adhesives (in the Maintenance section) when performing assembly operations. 1. Clean and inspect all parts. 2. Replace all O-rings, seals, gaskets, and any parts that are worn or damaged. 3. Lightly lubricate all O-rings and metal parts in moving contact. 4. Seal all pipe fittings.
Type ACE97 3. Thread the poppet (key 42) onto the piston (key 37). Use soft-jawed pliers to restrain the piston so it is not damaged. Do not hold the poppet by the stem. Insert a small drill bit into the cross-drilled hole on the poppet stem (key 42) to turn and tighten. 4. Slide the O-ring (key 39) onto the poppet (key 42). 5. Place the pilot sub-assembly into the upper cage (key 40). SCREW (KEY 20) PISTON (MAIN VALVE) SPRING (KEY 26) 6.
Type ACE97 Actuator Assembly Refer to Figure 20. 1. Place the actuator gasket (key 27) and lower actuator case (key 113) onto the body (key 18). Secure with lock washers and hex-head screws (keys 28 and 29). Tighten all hex-head screws uniformly. 2. Place the actuator gasket (key 27) onto the pad valve. 3. Attach the lower actuator case (key 113) to the pad valve with cap screws, lock washers (keys 29 and 28), and seal bushings (key 46, NPS 1 / DN 25 valve only). 4.
Type ACE97 Parts List Key Description Part Number Parts Kits NPS 1/2 / DN 15 pad valve (includes keys 16, 27, 38, 39, and 41) Nitrile (NBR) 19B6041X012 Fluorocarbon (FKM) 19B6041X022 Perfluoroelastomer (FFKM) 19B6041X032 Ethylenepropylene (EPDM - FDA) 19B6041X042 NPS 1 / DN 25 pad valve, Cv 1 through 4 (includes keys 16, 19, 23, 24, 27, 38, 39, 41, and 46) Nitrile (NBR) 19B6043X012 Fluorocarbon (FKM) 19B6043X022 Perfluoroelastomer (FFKM) 19B6043
Type ACE97 Key Description Part NUmber 27 Gasket (bonnet, pad valve) GC070429X32 28 Lock Washer (28 required) GC060906X02 29 Hex-Head Machine Screw (4 required) NPS 1/2 / DN 15 body pad valve NPS 1 / DN 25 body pad valve NPS 2 / DN 50 body pad valve GC060220X02 GC060219X02 GC060220X02 31 1A3457K0012 Hex Nut (21 required) 34 Spring Shim (NPS 1 / DN 25 pad valve) 25 to 50 psig / 1,7 to 3,4 mbar GC053209X02 35 Lower Cage (NPS 1 and 2 / DN 25 and 50 pad v
Type ACE97 Key Description Part NUmber 83 Seal Retaining Plate 1 NPT depad main valve 2 NPT depad main valve NPS 3 / DN 80 depad main valve NPS 4 / DN 100 depad main valve GC053314X02 GC053311X02 GC053317X02 GC053327X02 84 Spring (depad main valve) Cv 3 through 17 Cv 20 through 70 Cv 90 through 140 Cv 150 through 280 GC220723X22 GC220722X72 GC220724X22 GC220729X22 85 Spring Guide (depad main valve) Cv 3 through 17 Cv 20 through 70 Cv 90 through 140 Cv
Type ACE97 Key Description Part NUmber 131 Tube Elbow (2 required) (external, 1/4-inch / 6,4 mm tube x 1/8 NPT) ----------- 132 Tube Elbow (3 required) (external, 1/4-inch / 6,4 mm tube x 1/4 NPT) ----------- 133 Type 252 Pilot Filter (NPS 1 and 2 / DN 25 and 50 pad pilot valve) 17B6809X042 134 Pressure Gauge (depad main valve) GC160122X02 135 Tubing Insert (6 required) ----------- 138 Plug (pipe, hex, 1 NPT) 1A7947X0022 139 Hex-Head Pipe Plug (2 required),
Type ACE97 132 131 142 143 111 159 134 131 160 131 161 131 SEE INSET 111 131 131 157 133 132 129 138 134 142 NPS 1 / DN 25 PAD / NPS 4 / DN 100 DEPAD SEE INSET 149 150 133 148 TYPICAL DEPAD PILOT SUPPLY REGULATOR (KEY 140) 129 146 NPS 1 / DN 25 PAD / 1 NPT DEPAD E0630 Figure 11.
Type ACE97 95 97 95 PAD 0.5 TO 3-INCHES W.C. / 1 to 7 mbar DEPAD 4 TO 10-INCHES W.C. / 10 to 25 mbar PAD 0.5 TO 7-INCHES W.C. / 1 to 17 mbar DEPAD 4 TO 6-INCHES W.C. / 10 to 15 mbar 98 PAD 3 TO 13-INCHES W.C. / 7 to 32 mbar DEPAD 4 TO 16-INCHES W.C. / 10 to 40 mbar 98 98 97 97 95 95 97 95 96 112 PAD 4 TO 10-INCHES W.C. / 10 to 25 mbar DEPAD 16 TO 78-INCHES W.C. / 40 to 194 mbar PAD 0.5 TO 1.4 PSIG / 34 to 97 mbar DEPAD 0.25 TO 1 PSIG / 17 to 69 mbar PAD 1.0 TO 2.
Type ACE97 16 29 28 27 18 145 166 165 148 42 41 52 39 38 37 36 E0631 Figure 13.
Type ACE97 46 29 28 27 113 16 17 42 41 34 26 25 40 19 39 24 38 23 36 22 37 18 21 E0635 35 20 E0632 GROOVE FOR ROLLING DIAPHRAGM BEAD 138 Figure 14.
Type ACE97 42 41 40 39 38 GROOVE FOR ROLLING DIAPHRAGM BEAD 37 36 E0635 35 29 28 27 113 16 51 52 26 49 19 18 25 24 23 22 21 20 E0633 Figure 15.
Type ACE97 143 135 131 90 134 89 88 86 75 85 84 87 91 83 82 81 80 76 79 78 77 E0636 Figure 16.
Type ACE97 143 131 135 134 87 86 75 85 84 160 161 82 83 80 81 76 79 78 77 91 E0705 Figure 17.
Type ACE97 143 131 135 134 87 126 79 85 75 84 160 161 82 83 80 81 76 79 78 77 157 E0674 Figure 18.
Type ACE97 131 106 143 135 101 102 143 135 103 31 131 127 104 105 108 104 38 131 111 135 143 103 109 107 110 98 100 99 120 ACTUATOR E0675 Figure 19.
Type ACE97 98 100 28 99 121 114 120 93 163 93 119 95 94 28 31 28 E0676 29 116 118 117 113 27 Figure 20.
Type 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.
