Emerson ACE97 User manual

Type ACE97

Installation Guide

D102773X014

English – November 2011

Introduction

This installation guide provides instructions for

installation, startup and adjustment. To receive a copy of

the instruction manual, contact your local Sales Office or

view a copy at www.fisher.com. For further information

refer to: Type ACE97 Instruction Manual, D102773X012.

PED Categories

This product may be used as a safety accessory with

pressure equipment in the following Pressure Equipment

Directive categories. It may also be used outside of the

Pressure Equipment Directive using sound engineering

practice (SEP) per table below. For information on the

current PED revision see Bulletin: D103053X012.

PRODUCT SIZE CATEGORIES FLUID TYPE

DN 15 and 25 / NPS 1/2 and 1 1 SEP

DN 50 / NPS 2 1 I

Size refers to inlet (PAD) connection

Specifications

Pad (Tank Blanketing) Specifications

Pad Body Sizes and End Connection Styles

1/2, 1 and 2 NPT

DN 15, 25 and 50 / NPS 1/2, 1 and 2 CL150 RF

Maximum Operating Inlet Pressure(1)

13.8 bar / 200 psig

Maximum Main Valve Inlet Pressure(1)

13.8 bar / 200 psig

Inlet Operating Ranges(1)

DN 15 / NPS 1/2 pad valve:

1.7 to 13.8 bar / 25 to 200 psig

DN 25 and 50 / NPS 1 and 2 pad valves:

1.7 to 3.4 bar / 25 to 50 psig

3.5 to 8.2 bar / 51 to 120 psig

8.3 to 13.8 bar / 121 to 200 psig

Controlled Pressure Ranges

See Figure 2

Maximum and Minimum Differential Pressures(1)

1.7 bar / 25 psig minimum

13.8 bar / 200 psig maximum

Maximum Backpressure(1)

1.4 bar / 200 psig

Depad (Vapor Recovery) Specifications

Depad Body Sizes End Connection Styles

1 and 2 NPT

DN 80 and 100 / NPS 3 and 4

Depad Pressure Ranges(1)

See Figure 2

General Type ACE97 Specifications

Proof Test Pressure

All Pressure Retaining Components have been

prooftested per Directive

Temperature Capabilities

Nitrile (NBR): -29 to 82°C / -20 to 180°F

Fluorocarbon (FKM): -18 to 100°C / 0 to 212°F

Ethylenepropylene (EPDM - FDA):

-29 to 100°C / -20 to 212°F

Perfluoroelastomer (FFKM):

-29 to 100°C / -20 to 212°F

Installation

WARNING

Only qualified personnel should install

or service a valve. Valves should be

installed, operated and maintained

in accordance with international and

applicable codes and regulations, and

Emerson Process Management Regulator

Technologies, Inc. instructions.

If the valve vents fluid or a leak develops

in the system, it indicates that service

is required. Failure to take the valve out

of service immediately may create a

hazardous condition.

Personal injury, equipment damage,

or leakage due to escaping fluid or

bursting of pressure-containing parts

may result if this valve is overpressured

or is installed where service conditions

could exceed the limits given in the

Specifications section, or where

conditions exceed any ratings of the

adjacent piping or piping connections.

Type ACE97

To avoid such injury or damage,

provide pressurerelieving or pressure-

limiting devices (as required by

the appropriate code, regulation or

standard) to prevent service conditions

from exceeding limits.

Additionally, physical damage to the

valve could result in personal injury and

property damage due to escaping fluid.

To avoid such injury and damage, install

the valve in a safe location.

Clean out all pipelines before installation of the valve

and check to be sure the valve has not been damaged

or has collected foreign material during shipping. For

NPT bodies, apply pipe compound to the external pipe

threads. For flanged bodies, use suitable line gaskets

and approved piping and bolting practices.

The valve must be mounted so the actuator case is

horizontal. The valve should be mounted above the

tank. For connections are required: a) blanketing

gas supply to the valve, b) vapor recovery/process

connection (vent), c) system tank connection and d)

sensing line to the tank.

Overpressure Protection

The recommended pressure limitations are stamped

on the valve nameplate. Some type of overpressure

protection is needed if the actual inlet pressure

exceeds the maximum operating outlet pressure

rating. Overpressure protection should also be

provided if the valve inlet pressure is greater than the

safe working pressure of the downstream equipment.

Valve operation below the maximum pressure

limitations does not preclude the possibility of

damage from external sources or debris in the line.

The valve should be inspected for damage after any

overpressure condition.

Startup

Slowly open the tank and sensing line shutoff valves

(between the Type ACE97 and the tank). A tank vapor

space pressure gauge should be installed and visible.

Slowly open the inlet shutoff valve (to the pad valve)

and leave it fully open.

Adjustment

The setpoint of this unit if factory set. If an adjustment

is to be made, it should be made in small increments

while the unit is controlling tank pressure. It is difficult

to make field adjustments due to the slow changes in

tank pressure.

Taking Out of Service (Shutdown)

WARNING

To avoid personal injury resulting from

sudden release of pressure, isolate

the valve from all pressure before

attempting disassembly.

Parts List

Key Description

16* O-ring

17 Bonnet (pad valve)

18 Body (pad valve)

19* O-ring (DN 25 and 50 / NPS 1 and 2pad valves only)

20 Round-Head Machine Screw (DN 25 and 50 / NPS 1 and 2

pad valves only)

21 Lock Washer (DN 25 and 50 / NPS 1 and 2 pad valves only)

22 Plug (DN 25 and 50 / NPS 1 and 2 pad valves)

23* O-ring (DN 25 and 50 / NPS 1 and 2 pad valves)

24* O-ring (DN 25 and 50 / NPS 1 and 2 pad valves)

25 Piston (main valve, DN 25 and 50 / NPS 1 and 2 pad valves)

26 Spring (Pad Main Valve)

27 Gasket (bonnet, pad valve)

28 Lock Washer

29 Hex-Head Machine Screw

31 Hex Nut

34 Spring Shim (DN 25 / NPS 1 pad valve)

35 Lower Cage (DN 25 and 50 / NPS 1 and 2 pad valves)

36 Spring (pad pilot valve)

37 Piston (pad pilot valve)

38* Diaphragm (pad and depad pilot valves)

39* O-ring

40 Upper Cage (DN 25 and 50 / NPS 1 and 2 pad valves)

41* O-ring

42 Poppet (pad pilot valve)

46 Seal Bushing

49 Spring Guide (pad valve)

50 Hex-Head Cap Screw

51 Lock Washer

52 Cage (DN 15 / NPS 1/2 pad valve)

75 Stem

76* O-ring

77 Cage (depad main valve)

78 Hex-Head Machine Screw

79 Lock Washer

80 Seal Retainer

81* Stem Seal

82* O-ring

83 Steal Retaining Plate

84 Spring (depad main valve)

85 Spring Guide (depad main valve)

86 Retaining Ring (1 and 2 NPT depad main valves)

87 Bonnet

88* O-ring (1 NPT depad main valve)

89 Retaining Ring

90 Cap (1 NPT depad main valve)

91 Body (depad main valve)

Type ACE97

Key Description

93 Hex-Head Machine Screw

94 Stem (actuator)

95 Actuator Spring

96 Spring

97 Upper Spring Guide (actuator)

98 Spacer

99 Lock Nut (depad pilot valve)

100 Spring Adjuster (depad pilot valve)

101 Return Spring (depad pilot valve)

102 Gasket (upper cage, depad pilot valve)

103 Follower

104 O-ring (depad pilot valve)

105 Poppet (depad pilot valve)

106 Upper Cage (depad pilot valve)

107 Coupling

108 Center Cage (depad pilot valve)

109 Rain Cap

110 Lower Cage (depad pilot valve)

111 Fixed Orifice

112 Spring Seat

113 Actuator Case (lower)

114 Actuator Case (upper)

116 Diaphragm Plate (lower)

117 Bolt (diaphragm)

118* O-ring

119 Diaphragm Plate (upper)

120 Spring Case

121 Gasket (spring case)

126 Hex-Head Tap Bolt

Key Description

127 Seal Retainer (depad pilot valve)

129 Connector

131 Elbow

132 Elbow

133 Type 252 Pilot Filter (DN 25 and 50 / NPS 1 and 2 pad pilot valve)

134 Gauge (pressure, depad main valve)

135 Insert (tubing)

138 Pipe Plug

140 Regulator (pilot supply)

141 Tee Street

142 Tee Street

143 Tubing

145 Pipe Street Elbow

146 Flange

148 Pipe Nipple

149 Close Nipple

150 Tee (pipe)

151 Bushing

152 S.A.M. (Single Array Manifold)

153 Pipe Nipple (1 NPT depad valve only)

157 Body/Piping Weld

160 Hex-Head Machine Screw

161 Lock Washer

163 Diaphragm (actuator)

164 Tag (caution, depad adjustment)

165 Nipple

166 Housing Inlet Filter (DN 15 / NPS 1/2 pad valve)

167 Filter Element (DN 15 / NPS 1/2 valve)

SEE INSET

DN 25 / NPS 1 PAD /

DN 100 / NPS 4 DEPAD

TYPICAL DEPAD PILOT

SUPPLY REGULATOR (KEY 140)

DN 25 / NPS 1 PAD /

1 NPT DEPAD

E0630

Figure 1. Type ACE97 Pad-Depad Valve Exterior

132

143

134

131

142

159

160

161

131

134

132

142

149

150

153

148

138129

133

146

111

131

157

138

129

133 131

Type ACE97

E0677

Figure 2. Actuator Spring Ranges

PAD 34 TO 97 mbar / 0.5 TO 1.4 psig

DEPAD 17 TO 69 mbar / 0.25 TO 1 psig

PAD 69 TO 152 mbar / 1.0 TO 2.2 psig

DEPAD 17 TO 138 mbar / 0.25 TO 2 psig

PAD 1 TO 7 mbar / 0.5 TO 3 IN. W.C.

DEPAD 10 TO 25 mbar / 4 TO 10 IN. W.C.

PAD 1 TO 17 mbar / 0.5 TO 7 IN. W.C.

DEPAD 10 TO 15 mbar / 4 TO 6 IN. W.C.

PAD 7 TO 32 mbar / 3 TO 13 IN. W.C.

DEPAD 10 TO 40 mbar / 4 TO 16 IN. W.C.

PAD 10 TO 25 mbar / 4 TO 10 IN. W.C.

DEPAD 40 TO 194 mbar / 16 TO 78 IN. W.C.

112

98 98

112

98 98

Type ACE97

Figure 3. Type ACE97 DN 15 / NPS 1/2 Pad Valve

E0631

E0634

166 165 145

148

16 29 28

113

Type ACE97

Figure 4. Type ACE97 DN 25 / NPS 1 Pad Valve

GROOVE FOR ROLLING

DIAPHRAGM BEAD

E0635

E0632

113

138

Type ACE97

GROOVE FOR ROLLING

DIAPHRAGM BEAD

E0633

E0635

Figure 5. Type ACE97 DN 50 / NPS 2 Pad Valve

113

51 52

19 18

Type ACE97

Figure 6. Depad Main Valve 1 NPT

E0636

143

134

135 131

Type ACE97

Figure 7. Depad Main Valve 2 NPT

E0705

143 135 131

160

161

134

Type ACE97

Figure 8. Depad Main Valve DN 80 and 100 / NPS 3 and 4

E0674

143 135 131

134

157

126

160

161

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