Installation - Fisher D4 Instruction Manual

D4 Valve
July 2015
Table 6. Maximum Shutoff Pressure Drops
When Used with Typical Control Instrumentation
INPUT SIGNAL TO 0 to 1.2 Bar
ACTUATOR (0 to 18 Psig)
SPRING
INITIAL SPRING 0.23 Bar
SETTING (3.4 Psig)
PORT DIAMETER
mm Inches Bar
(3)
6.4 0.25 293
(3)
9.5 0.375 293
12.7 0.5 187
19.1 0.75 78
25.4 1 41
31.8 1.25 24
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.
Table 7. Maximum Shutoff Pressure Drops
When Used with Instrumentation with Restricted Output Range
INPUT SIGNAL TO
ACTUATOR
SPRING
INITIAL SPRING
SETTING
PORT DIAMETER
mm Inches
6.4 0.25
9.5 0.375
12.7 0.5
19.1 0.75
25.4 1
31.8 1.25
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.

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
(1)
for Fisher D4 Control Valves (Spring‐to‐Open)
(2)
0 to 1.4 Bar
(0 to 20 Psig)
Light Rate
0.23 Bar
(3.4 Psig)
Psi Bar Psi
(3) (3) (3)
4250 293 4250
(3) (3) (3)
4250 293 4250
2715 233 3380
1135 99 1430
600 53 765
355 32 465
(1)
for Fisher D4 Control Valves (Spring‐to‐Open)
0.4 to 2.0 Bar
(6 to 30 Psig)
Heavy Rate
0.69 Bar
(10.0 Psig)
Bar
(3)
293
(3)
293
196
82
43
26
0 to 2.0 Bar 0 to 2.3 Bar
(0 to 30 Psig) (0 to 33 Psig)
0.28 Bar 0.28 Bar
(4.0 Psig) (4.0 Psig)
Maximum Pressure Drop
Bar Psi Bar
293 4250 293
293 4250 293
293 4250 293
147 2130 178
80 1160 97
49 715 60
(2)
Maximum Pressure Drop
Psi
(3)
4250
(3)
4250
2845
1195
630
380
Instruction Manual
0 to 2.4 Bar
(0 to 35 Psig)
Heavy Rate
0.28 Bar
(4.0 Psig)
Psi Bar Psi
4250 293 4250
4250 293 4250
4250 293 4250
2575 198 2875
1410 109 1575
875 68 985
0.14 to 2.3 Bar
(2 to 33 Psig)
Heavy Rate
0.42 Bar
(6.1 Psig)
Bar
293
293
293
156
85
52
D103042X012
0 to 3.4 Bar
(0 to 50 Psig)
0.28 Bar
(4.0 Psig)
Bar Psi
293 4250
293 4250
293 4250
293 4250
195 2830
123 1785
Psi
4250
4250
4250
2265
1235
765