Instruction Manual
D103597X012
D4 Valve with easy-Drive Actuator
October 2017
3
Description
The D4 control valve with easy-Drive electric actuator 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.
Specifications
Table 1 lists specifications for the D4 control valve with easy-Drive electric actuator. Some of the specifications for a
given control valve as it originally comes from the factory are stamped on a nameplate located on the lower actuator
enclosure.
Educational Services
For information on available courses for the Fisher D4 control valve with easy-Drive electric actuator, as well as a
variety of other products, contact:
Emerson Automation Solutions
Educational Services - Registration
Phone: 1-641-754-3771 or 1-800-338-8158
E-mail: education@emerson.com
emerson.com/fishervalvetraining
Table 2. Valve Sizes and Connection Styles
VALVE
SIZE,
NPS
PORT
DIAMETER,
(INCHES)
SCREWED RAISED FACE (RF) FLANGED
RING TYPE JOINT
(RTJ) FLANGED
4250 psi CL150 CL300 CL600
CL900 and
CL1500
CL600
CL900 and
CL1500
1
0.25, 0.375,
0.5, 0.75
X X X X X X X
2
0.25, 0.375, 0.5
0.75, 1, 1.25
X X X X X X X
X = Available construction.
Table 3. D4 Environmental Limits for NACE MR0175/ISO 15156 with Sour Trim
MAXIMUM TEMPERATURE MAXIMUM H
2
S PARTIAL PRESSURE
COMPATIBLE WITH
ELEMENTAL SULFUR?
_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
Table 4. Fisher D4 easy-Drive Maximum Pressure Drop
PORT DIAMETER MAXIMUM PRESSURE DROP
(1)
mm Inch Bar psi
6.4
9.5
12.7
19.1
25.4
31.8
0.25
0.375
0.5
0.75
1
1.25
293
293
247
105
56
34
4250
(1)
4250
(1)
3576
(1)
1518
814
495
1. Downstream pressure, P2, is limited to 2250 psig.
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