Fisher D4 Instruction Manual
Instruction Manual
D103042X012
Fisherr D4 Control Valve Assembly
D4 Valve
July 2015
Contents
Introduction 1.................................
Scope of Manual 1.............................
Description 1.................................
Specifications 2...............................
Educational Services 2.........................
Installation 4..................................
Spring Adjustment 5............................
Maintenance 6.................................
Valve Plug and Seat Ring 6......................
Valve Packing 8...............................
Actuator 10..................................
Parts Ordering 13...............................
Repair Kits 14..................................
Parts List 14...................................
Appendix A 17.................................
Figure 1. Fisher D4 Control Valve
W8531
Introduction
Scope of Manual
This instruction manual provides installation, maintenance, and parts information for the Fisher D4 control valve.
Do not install, operate, or maintain a D4 control valve without being fully trained and qualified in valve, actuator, and
accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is important to
carefully read, understand, and follow all the contents of this manual, including all safety cautions and warnings. If you
have any questions about these instructions, contact your Emerson Process Management sales office
proceeding.
Description
The D4 control valve is a compact, rugged valve designed primarily for high‐pressure throttling applications. This valve
is ideal for use on pressure and flow control applications within the oil and gas production industry. The D4 valve also
makes an excellent dump valve for high‐pressure separators and scrubbers.
The D4 control valve meets the metallurgical requirements of NACE MR0175/ISO 15156 without environmental limits
for temperatures below 135_C (275_F). If the temperature is above 135_C (275_F), the N07718 Belleville washers will
impose some limits, as shown in table 3.
before
www.Fisher.com
D4 Valve
July 2015
Table 1. Specifications
Instruction Manual
D103042X012
Available Configurations
Spring‐to‐Close
Spring‐to‐Open
Valve Body Sizes and End Connection Styles
See table 2
Maximum Inlet Pressures and Temperatures
If the valve nameplate shows an ASME
(1)
(1)
Material Temperature Capabilities
Actuator Assembly: -40 to 93°C (-40 to 200°F)
Valve Body Assembly:
Standard Bonnet O‐Ring: -40 to 135°C (-40 to 275°F)
Optional Fluorocarbon Bonnet O‐Ring: -23 to 204°C
(-10 to 400°F)
Flow Characteristic
Equal percentage
pressure‐temperature class, maximum inlet pressure
and temperature is consistent with the applicable
class per ASME B16.34. If the nameplate does not
show an ASME class, it will show a maximum cold
working pressure at 38_C (100_F) (for example, 293
bar [4250 psi])
Flow Direction
Flow up only
Port Diameters
See table 2
Maximum Pressure Drops
See tables 4, 5, 6, and 7
(1)
Valve Plug Travel
19 mm (0.75 inch)
Input Signal to Actuator
See tables 4, 5, 6, and 7
Valve Plug Style
Micro‐Form valve plug
Actuator Maximum Casing Pressure
3.4 bar (50 psig)
(1)
Actuator Diaphragm Effective Area
452 cm
2
(69 inches2)
Shutoff Classification per ANSI/FCI 70‐2
and IEC 60534‐4
Class IV
1. The pressure or temperature limits in the referenced tables and any applicable ASME code limitations should not be exceeded.
Actuator Pressure Connection Size
1/4 NPT internal
(1)
Specifications
Table 1 lists specifications for the D4 control valve. Some of the specifications for a given control valve as it originally
comes from the factory are stamped on a nameplate located on the actuator spring barrel.
Educational Services
For information on available courses for Fisher D4 valves, as well as a variety of other products, contact:
Emerson Process Management
Educational Services - Registration
Phone: 1-641-754-3771 or 1-800-338-8158
E-mail: education@emerson.com
http://www.emersonprocess.com/education
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Instruction Manual
D103042X012
Table 2. Valve Sizes and Connection Styles
VALVE
SIZE,
NPS
1
2
X = Available construction.
PORT
DIAMETER,
(INCHES)
0.25, 0.375,
0.5, 0.75
0.25, 0.375, 0.5
0.75, 1, 1.25
Table 3. D4 Environmental Limits for NACE MR0175/ISO 15156 with Sour Trim
MAXIMUM TEMPERATURE MAXIMUM H2S PARTIAL PRESSURE
_C _F MPa psia
232 450 0.2 30 No
204 400 1.4 200 No
199 390 2.3 330 No
191 375 2.5 360 No
149 300 2.8 400 No
135 275 No Limit Yes
SCREWED RAISED FACE (RF) FLANGED
4250 psi CL150 CL300 CL600
X X X X X X X
X X X X X X X
CL900 and
CL1500
D4 Valve
RING TYPE JOINT
(RTJ) FLANGED
CL600
COMPATIBLE WITH
ELEMENTAL SULFUR?
CL900 and
July 2015
CL1500
Table 4. Maximum Shutoff Pressure Drops
When Used with Typical Control Instrumentation
INPUT SIGNAL TO
ACTUATOR
SPRING Light Rate Heavy Rate
INITIAL SPRING
SETTING
PORT DIAMETER Maximum Pressure Drop
mm Inches Bar Psi Bar Psi Bar Psi Bar Psi Bar Psi Bar Psi
6.4
9.5
12.7
19.1
25.4
31.8
1. The pressure or temperature limits in the referenced tables and any applicable ASME code limitations should not be exceeded.
2. For example, use the column marked 0‐1.4 bar (0‐20 psig) for a 0.21‐1.0 bar (3‐15 psig) pneumatic controller with 1.4 bar (20 psig) supply pressure.
3. For applications with downstream pressure in excess of 196 bar (2845 psig), use 196 bar (2845 psig) for Maximum Shutoff Pressure.
0.25
0.375
0.5
0.75
1
1.25
0 to 1.2 Bar
(0 to 18 Psig)
0.77 Bar
(11.2 Psig)
(3)
293
(3)
293
191
80
42
25
4250
4250
2765
1160
610
365
(3)
(3)
Table 5. Maximum Shutoff Pressure Drops
When Used with Instrumentation with Restricted Output Range
INPUT SIGNAL TO
ACTUATOR
SPRING Heavy Rate Heavy Rate
INITIAL SPRING
SETTING
PORT DIAMETER Maximum Pressure Drop
mm Inches Bar Psi Bar Psi
6.4
9.5
12.7
19.1
25.4
31.8
1. The pressure or temperature limits in the referenced tables and any applicable ASME code limitations should not be exceeded.
2. For example, an Electro‐Pneumatic Transducer calibrated for 0.4‐2.0 bar (6‐30 psig) output pressure.
3. For applications with downstream pressure in excess of 118 bar (1715 psig), use 118 bar (1715 psig) for Maximum Shutoff Pressure.
0.25
0.375
0.5
0.75
1
1.25
293
210
113
(3)
(3)
45
23
13
(1)
0 to 1.4 Bar
(0 to 20 Psig)
0.77 Bar
(11.2 Psig)
(3)
293
(3)
293
191
80
42
25
(1)
0.4 to 2.0 Bar
(6 to 30 Psig)
0.97 Bar
(14.0 Psig)
for Fisher D4 Control Valves (Spring‐to‐Close)
(2)
4250
4250
2765
1160
610
365
(3)
(3)
0 to 2.0 Bar
(0 to 30 Psig)
0.85 Bar
(12.4 Psig)
293
293
219
92
49
30
4250
4250
3180
1340
715
430
0 to 2.3 Bar
(0 to 33 Psig)
1.05 Bar
(15.3 Psig)
293
293
288
123
67
41
4250
4250
4180
1785
965
590
for Fisher D4 Control Valves (Spring‐to‐Close)
(2)
(3)
4250
3045
1635
655
330
185
(3)
293
293
282
120
65
39
0 to 2.4 Bar
(0 to 35 Psig)
1.18 Bar
(17.1 Psig)
293
293
293
143
78
48
0.14 to 2.3 Bar
(2 to 33 Psig)
4250
4250
4250
2080
1130
700
1.17 Bar
(17.0 Psig)
0 to 3.4 Bar
(0 to 50 Psig)
1.18 Bar
(17.1 Psig)
293
293
293
143
78
48
4250
4250
4095
1750
945
580
4250
4250
4250
2080
1130
700
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D4 Valve
July 2015
Instruction Manual
D103042X012
Table 6. Maximum Shutoff Pressure Drops
When Used with Typical Control Instrumentation
INPUT SIGNAL TO
ACTUATOR
SPRING Light Rate Heavy Rate
INITIAL SPRING
SETTING
PORT DIAMETER Maximum Pressure Drop
mm Inches Bar Psi Bar Psi Bar Psi Bar Psi Bar Psi Bar Psi
6.4
9.5
12.7
19.1
25.4
31.8
1. The pressure or temperature limits in the referenced tables and any applicable ASME code limitations should not be exceeded.
2. For example, use the column marked 0‐1.4 bar (0‐20 psig) for a 0.21‐1.0 bar (3‐15 psig) pneumatic controller with 1.4 bar (20 psig) supply pressure.
3. For applications with downstream pressure in excess of 190 bar (2760 psig), use 190 bar (2760 psig) for Maximum Shutoff Pressure.
0.25
0.375
0.5
0.75
1
1.25
0 to 1.2 Bar
(0 to 18 Psig)
0.23 Bar
(3.4 Psig)
(3)
293
(3)
293
187
78
41
24
4250
4250
2715
1135
600
355
(3)
(3)
Table 7. Maximum Shutoff Pressure Drops
When Used with Instrumentation with Restricted Output Range
INPUT SIGNAL TO
ACTUATOR
SPRING Heavy Rate Heavy Rate
INITIAL SPRING
SETTING
PORT DIAMETER Maximum Pressure Drop
mm Inches Bar Psi Bar Psi
6.4
9.5
12.7
19.1
25.4
31.8
1. The pressure or temperature limits in the referenced tables and any applicable ASME code limitations should not be exceeded.
2. For example, an Electro‐Pneumatic Transducer calibrated for 0.4‐2.0 bar (6‐30 psig) output pressure.
3. For applications with downstream pressure in excess of 202 bar (2925 psig), use 202 bar (2925 psig) for Maximum Shutoff Pressure.
0.25
0.375
0.5
0.75
1
1.25
293
293
196
(3)
(3)
82
43
26
(1)
0 to 1.4 Bar
(0 to 20 Psig)
0.23 Bar
(3.4 Psig)
(3)
293
(3)
293
233
99
53
32
(1)
0.4 to 2.0 Bar
(6 to 30 Psig)
0.69 Bar
(10.0 Psig)
for Fisher D4 Control Valves (Spring‐to‐Open)
(2)
4250
4250
3380
1430
765
465
(3)
(3)
0 to 2.0 Bar
(0 to 30 Psig)
0.28 Bar
(4.0 Psig)
293
293
293
147
80
49
4250
4250
4250
2130
1160
715
0 to 2.3 Bar
(0 to 33 Psig)
0.28 Bar
(4.0 Psig)
293
293
293
178
97
60
4250
4250
4250
2575
1410
293
293
293
198
109
875
for Fisher D4 Control Valves (Spring‐to‐Open)
(2)
0.14 to 2.3 Bar
(3)
4250
4250
2845
1195
630
380
(3)
293
293
293
156
85
52
0 to 2.4 Bar
(0 to 35 Psig)
0.28 Bar
(4.0 Psig)
4250
4250
4250
2875
68
(2 to 33 Psig)
1575
985
0.42 Bar
(6.1 Psig)
0 to 3.4 Bar
(0 to 50 Psig)
0.28 Bar
(4.0 Psig)
293
293
293
293
195
123
4250
4250
4250
2265
1235
765
4250
4250
4250
4250
2830
1785
Installation
WARNING
Always wear protective gloves, clothing, and eyewear when performing any installation operations to avoid personal
injury.
To avoid personal injury or property damage caused by bursting of pressure‐retaining parts or by uncontrolled process
fluid, be certain the service conditions do not exceed the limits shown on the valve nameplate and in tables 1, 4, 5, 6, and 7.
Use pressure‐relieving devices required by government or accepted industry codes and good engineering practices.
Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this
instruction manual.
4
Instruction Manual
D103042X012
D4 Valve
July 2015
WARNING
When ordered, the valve configuration and construction materials were selected to meet particular pressure, temperature,
pressure drop, and controlled fluid conditions. Responsibility for the safety of process media and compatibility of valve
materials with process media rests solely with the purchaser and end‐user. Since some body/trim material combinations
are limited in their pressure drop and temperature ranges, do not apply any other conditions to the valve without first
contacting your Emerson Process Management sales office
.
WARNING
Avoid personal injury or property damage caused by possible actuator failure. The use of a rigidly‐mounted support on the
actuator casing may cause additional stress on the actuator leading to premature wear and/or failure of the actuator
components.
CAUTION
To avoid product damage, inspect the valve before installation for any damage or any foreign material that may have
collected in the valve body. Also remove any pipe scale, welding slag, or other foreign material from the pipeline.
1. Before installing the control valve assembly, inspect it for any damage and for any foreign material that may have
collected in the valve body.
2. Remove any pipe scale, welding slag, and other foreign material from the pipeline.
3. The control valve can be installed in any position, but normally the actuator is vertical above the valve. Install the
valve so the flow direction arrow on the side of the valve indicates the direction of the process flow.
4. Install the valve following local and national piping codes when they apply to the application. For screwed
connections, treat the external pipe threads with a good grade pipe compound. For flanged valves, use suitable
gaskets between valve and pipeline flanges.
5. If continuous operation is required during maintenance and inspection, install a conventional three‐valve bypass
around the valve.
6. Connect loading pressure for the Spring‐to‐Open configuration to the 1/4‐18 NPT connection in the upper casing
assembly (key 23) as shown in figure 5. The Spring‐to‐Close configuration loading pressure connection is in the
lower casing assembly (key 39) as shown in figure 4.
Spring Adjustment
The spring has a fixed pressure span over which loading pressure will stroke the valve. Adjustment of the spring
compression shifts the span so that more or less loading pressure is required to start travel. Since the span does not
change, there will be a corresponding increase or decrease in the pressure requirements at the end of the valve stroke.
In order to maximize shutoff pressure drop values, the actuator spring must be accurately adjusted for each Input
Signal Pressure Range. If the actuator has been disassembled or pressure conditions have changed, the spring may
require adjustment. Refer to tables 2 and 4 to determine the Initial Spring Set values based on the Input Signal range
that is available to the actuator. These values include packing friction.
5
D4 Valve
July 2015
Instruction Manual
D103042X012
Spring‐to‐Close
Refer to figure 4.
1. Loosen the adjusting screw nut (key 44).
2. Turn the adjusting screw (key 31) clockwise to compress the spring or counterclockwise to decrease spring
compression.
3. After adjustment, tighten the adjusting screw nut (key 44).
Spring‐to‐Open
Refer to figure 5.
1. Unscrew the spring case assembly (key 27).
2. Turn the adjusting stem nut (key 44) clockwise to compress the spring or counterclockwise to decrease spring
compression.
3. After adjustment, replace the spring case assembly (key 27).
Maintenance
Refer to figure 4.
Valve parts are subject to normal wear and must be inspected and replaced as necessary. The frequency of inspection
and maintenance depends on the severity of the service conditions.
WARNING
Avoid personal injury from sudden release of process pressure or bursting of parts. Before performing any maintenance
operations:
D Do not remove the actuator from the valve while the valve is still pressurized.
D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal
injury.
D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the
actuator cannot suddenly open or close the valve.
D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure
on both sides of the valve. Drain the process media from both sides of the valve.
D Vent the power actuator loading pressure and relieve any actuator spring precompression.
D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment.
D The valve packing box may contain process fluids that are pressurized, even when the valve has been removed from the
pipeline. Process fluids may spray out under pressure when removing the packing hardware or packing rings.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
Valve Plug and Seat Ring
The D4 control valve is designed to allow easy access to the valve plug and seat ring without disturbing the packing.
Refer to other sections of this instruction manual if additional maintenance is required.
6
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