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
2
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
3
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
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
131
142
159
160
161
131
134
132
142
149
150
153
148
138129
133
146
111
111
131
131
157
138
129
133 131

Type ACE97
4
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.
95
97
95
97
95
98
97
95
96
112
98 98
97
95
95
97
95
97
95
98
97
95
96
112
98 98
97
95

Type ACE97
5
Figure 3. Type ACE97 DN 15 / NPS 1/2 Pad Valve
E0631
E0634
42
41
52
39
38
37
36
166 165 145
148
18
27
16 29 28
113

Type ACE97
6
Figure 4. Type ACE97 DN 25 / NPS 1 Pad Valve
GROOVE FOR ROLLING
DIAPHRAGM BEAD
E0635
E0632
46
29
28
27
16
17
26
25
19
24
23
22
21
20
113
34
18
138
42
41
40
39
38
36
37
35

Type ACE97
7
GROOVE FOR ROLLING
DIAPHRAGM BEAD
E0633
E0635
Figure 5. Type ACE97 DN 50 / NPS 2 Pad Valve
42
41
40
39
38
36
37
35
29
28
27
16
26
49
25
24
23
22
21
20
113
51 52
19 18

Type ACE97
8
Figure 6. Depad Main Valve 1 NPT
E0636
143
134
86
84
87
91
83
81
80
76
79
78
77
135 131
90
89
88
75
85
82

Type ACE97
9
Figure 7. Depad Main Valve 2 NPT
E0705
143 135 131
75
85
160
161
82
134
87
86
84
83
80
81
76
79
78
77
91

Type ACE97
10
Figure 8. Depad Main Valve DN 80 and 100 / NPS 3 and 4
E0674
143 135 131
134
87
75
83
80
81
76
79
78
77
157
126
79
85
84
160
161
82

Type ACE97
11
E0675
Figure 9. Depad Pilot Valve Parts
ACTUATOR
131
106
101
102
103
31
127
104
111
108
131
135
143
109
143
135
143
135
131
105
104
38
103
107
98
99
120
110
100

Type ACE97
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Figure 10. Actuator Parts
E0676
100 98
99
120
93
114
93
28
31
113
28
29
11711827116
28
121
163
119
95
94
For further information on the current
PED revision see Bulletin: D103053X012
or scan the QR code.
Fisher.com
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McKinney, Texas 75070 USA
T [phone]
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T [phone]
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Singapore 128461, Singapore
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D102773X014 © 2002, 2019 Emerson Process Management Regulator
Technologies, Inc. All rights reserved. 01/19.
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