Type ACE97

D10

2773

XE

NG

Installation GuideEnglish – May 2002

www.FISHERregulators.com

IntroductionThis installation guide provides instructions for installation,startup, and adjustment. To receive a copy of the instructionmanual, contact your local Fisher SalesOffice or Sales Representative or view a copy atwww.FISHERregulators.com. For further information refer to:

Type ACE97 Instruction Manual, form 5665, D102773X012.

P.E.D. CategoriesThis product may be used as a safety accessory withpressure equipment in the following Pressure EquipmentDirective 97/23/EC categories. It may also be used out-side of the Pressure Equipment Directive using soundengineering practice (SEP) per table below.

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Specifications

Pad SpecificationsPad Body Size

DN 15, 25, and 50 (1/2, 1, and 2-inch)

Pad Connection StyleNPT or ANSI Class 150RF

Maximum Operating Inlet Pressure10 bar (145 psig)

Maximum Main Valve Inlet Pressure10 bar (145 psig)

Controlled Pressure RangesSee figure 2

Differential PressuresMinimum1/2-inch: 0 bar (0 psig)1 and 2-inch: 1,7 bar (25 psig)Maximum10 bar (145 psig)

Depad Specifications

Depad Body SizeDN 25, 50, 80, and 100 (1, 2, 3, and 4-inch)

Depad Connection StyleANSI Class 150RF

Depad Pressure RangesSee figure 2

General ACE97 SpecificationsProof Test Pressure

All Pressure Retaining Components have been prooftested per Directive 97/23/EC - Annex 1, Section 7.4

Temperature CapabilitiesNitrile (NBR): –20° to 180°F (–29° to 82°C)Fluoroelastomer (FKM): 0° to 212°F (–17° to 100°C)Ethylenepropylene (EPDM - FDA): –40° to 212°F(-40° to 100°C)Perfluoroelastomer (FFKM): –20° to 212°F (–29° to100°C)

Installation

Only qualified personnel should install or servicea regulator. Regulators should be installed, oper-ated, and maintained in accordance with inter-national and applicable codes and regulations,and Fisher instructions.

If the valve vents fluid or a leak develops in thesystem, it indicates that service is required. Fail-ure to take the regulator out of service immedi-ately may create a hazardous condition.

Personal injury, equipment damage, or leakagedue to escaping fluid or bursting of pressure-con-taining parts may result if this regulator is over-pressured or is installed where service condi-tions could exceed the limits given in the Specifi-cations section, or where conditions exceed anyratings of the adjacent piping or piping connec-tions.

To avoid such injury or damage, provide pres-sure-relieving or pressure-limiting devices (asrequired by the appropriate code, regulation, orstandard) to prevent service conditions from ex-ceeding limits.

Additionally, physical damage to the regulatorcould result in personal injury and property dam-age due to escaping fluid. To avoid such injuryand damage, install the regulator in a safe loca-tion.

Clean out all pipelines before installation of the regulatorand check to be sure the regulator has not been dam-aged or has collected foreign material during shipping.For NPT bodies, apply pipe compound to the male pipethreads. For flanged bodies, use suitable line gasketsand approved piping and bolting practices.

The regulator must be mounted so the actuator case ishorizontal. The regulator should be mounted above thetank. For connections are required: a) blanketing gassupply to the regulator, b) vapor recovery/process con-nection (vent), c) system tank connection, and d) sensingline to the tank.

Overpressure Protection

The recommended pressure limitations are stamped onthe regulator nameplate. Some type of overpressureprotection is needed if the actual inlet pressure exceedsthe maximum operating outlet pressure rating.Overpressure protection should also be provided if theregulator inlet pressure is greater than the safe workingpressure of the downstream equipment.

Regulator operation below the maximum pressurelimitations does not preclude the possibility of damagefrom external sources or debris in the line. The regulatorshould be inspected for damage after any overpressurecondition.

1. The pressure/temperature limits in this installation guide and any applicablestandard or code limitation should not be exceeded.

Type ACE97

2

Parts ListKey Description

16 O-Ring17 Bonnet (pad valve)18 Body (pad valve)19 O-Ring (1 and 2-inch pad valves)20 Round-Head Machine Screw (1 and 2-inch pad valves)21 Lock Washer (1 and 2-inch pad valves)22 Plug (1 and 2-inch pad valves)23 O-Ring (1 and 2-inch pad valves)24 O-Ring (1 and 2-inch pad valves)25 Piston (main valve, 1 and 2-inch pad valves)26 Spring28 Lock Washer29 Hex-Head Machine Screw31 Hex Nut34 Spring Shim (1-inch pad valve)35 Cage (lower, 1 and 2-inch pad valves)36 Spring (cage, pad valve)37 Piston (pad valve)38 Diaphragm (pad and depad pilot valves)39 O-ring40 Cage (upper, 1 and 2-inch pad valves)41 O-ring42 Poppet (pad valve)46 Seal (bushing)49 Spring Guide (pad valve)50 Hex Head Cap Screw51 Lock Washer52 Cage (1/2-inch pad valve)75 Stem76 O-ring77 Cage (depad main valve)78 Hex-Head Machine Screw79 Lock Washer

StartupSlowly open the tank and sensing line shutoff valves(between the Type ACE97 and the tank). A tank vaporspace pressure gauge should be installed and visible.Slowly open the inlet shutoff valve (to the pad valve) andleave it fully open.

AdjustmentThe setpoint of this unit if factory set. If an adjustment is to bemade, it should be made in small increments while the unitis controlling tank pressure. It is difficult to make fieldadjustments due to the slow changes in tank pressure.

Taking Out of Service (Shutdown)

To avoid personal injury resulting from suddenrelease of pressure, isolate the valve from allpressure before attempting disassembly.

Key Description

80 Seal Retainer81 Seal (stem)82 O-ring83 Plate (seal retaining)84 Spring (depad main valve)85 Spring Guide (depad main valve)86 Retaining Ring (1 and 2-inch depad main valve)87 Bonnet88 O-ring (1-inch depad main valve)89 Retaining Ring90 Cap (1-inch depad main valve)91 Body (depad main valve)93 Hex-Head Machine Screw94 Stem (actuator)95 Spring96 Spring97 Spring Guide (range)98 Spacer99 Lock Nut (depad pilot valve)100 Adjuster (spring)101 Spring (return)102 Gasket103 Follower104 O-Ring105 Poppet106 Cage (upper)107 Coupling108 Cage (center)109 Rain Cap110 Cage (lower)111 Orifice112 Spring Seat113 Actuator Case (lower)114 Actuator Case (upper)116 Diaphragm Plate (lower)117 Bolt (diaphragm)118 O-ring119 Diaphragm Plate (upper)120 Spring Case121 Gasket (spring case)126 Hex-Head Tap Bolt127 Seal Retainer (depad pilot valve)129 Connector131 Elbow132 Elbow133 Filter (pilot, 1 and 2-inch)134 Gauge (pressure, depad main valve)135 Insert (tubing)138 Pipe Plug140 Regulator (pilot supply)143 Tubing145 Elbow146 Flange148 Nipple149 Nipple150 Tee (pipe)151 Bushing152 S.A.M. (Single Array Manifold)153 Nipple (1-inch depad valve only)154 Bushing157 Body/Piping Weld160 Hex-Head Machine Screw161 Lock Washer163 Diaphragm (actuator)164 Tag (caution, depad adjustment)165 Nipple166 Filter167 Element

Type ACE97

3

E0630

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Figure 1. Type ACE97 Pad-Depad Valve Exterior

1-INCH PAD / 4-INCH DEPAD

1-INCH PAD / 1-INCH DEPAD

TYPICAL DEPAD PILOTSUPPLY REGULATOR (KEY 140)

SEE INSET

SEE INSET

Type ACE97

4

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E0677

Figure 2. Actuator Spring Ranges

PAD 0.5 TO 3-IN WC (1 TO 7 MBAR)DEPAD 4 TO 6-IN WC (10 TO 15 MBAR)PAD 0.5 TO 7-IN WC (1 TO 17 MBAR)

DEPAD 4 TO 10-IN WC (10 TO 25 MBAR)

PAD 3 TO 13-IN WC (1 TO 32 MBAR)DEPAD 4 TO 16-IN WC (10 TO 40 MBAR)

PAD 4 TO 10-IN WC (10 TO 25 MBAR)DEPAD 16 TO 78-IN WC (10 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 2.2 PSIG (69 TO 152 MBAR)DEPAD 0.25 TO 2.0 PSIG (17 TO 138 MBAR)

Type ACE97

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Figure 3. Type ACE97 1/2-inch Pad Valve

Type ACE97

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Figure 4. Type ACE97 1-inch Pad Valve

GROOVE FOR ROLLINGDIAPHRAGM BEAD

Type ACE97

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GROOVE FOR ROLLINGDIAPHRAGM BEAD

Figure 5. Type ACE97 2-inch Pad Valve

Type ACE97

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Figure 6. Depad Main Valve (1-inch)

Type ACE97

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Figure 7. Depad Main Valve (2-inch)

Type ACE97

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Figure 8. Depad Main Valve (3 and 4-inch)

Type ACE97

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ACTUATOR

Figure 9. Depad Pilot Valve Parts

Type ACE97

For information, contact Fisher Controls, International:Within USA (800) 588-5853 – Outside USA (972) 542-0132Italy – (39) 051-4190-606Singapore – (65) 770-8320Mexico – (52) 57-28-0888

©Fisher Controls International, Inc., 2002; All Rights Reserved

Fisher and Fisher Regulators are marks owned by Fisher Controls International, Inc. The Emerson logo is a trade mark and service mark 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, expressor implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.

Printed in U.S.A. www.FISHERregulators.com

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Figure 10. Actuator Parts