Emerson FISHER D4 Instruction Manual page 4

D4 Valve
Table 5. Maximum Shutoff Pressure Drops
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 0.25 259
(3)
9.5 0.375 259
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 6. Maximum Shutoff Pressure Drops
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 0.21-1.0 bar (3-15 psig) output pressure.
3. For applications with downstream pressure in excess of 51 bar (740 psig), use 51 bar (740 psig) for Maximum Shutoff Pressure.
4. For applications with downstream pressure in excess of 202 bar (2925 psig), use 202 bar (2925 psig) for Maximum Shutoff Pressure.
CAUTION
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 Fisher sales office.
To avoid product damage, inspect the
valve before installation for any
4
When Used with Typical Control Instrumentation
0 to 1.4 Bar
(0 to 20 Psig)
Light Rate
0.23 Bar
(3.4 Psig)
Psi Bar Psi
(3) (3) (3)
3750 259 3750
(3) (3) (3)
3750 259 3750
2715 233 3380
1135 99 1430
600 53 765
355 32 465
When Used with Instrumentation with Restricted Output Range
0.2 to 1.0 Bar
(3 to 15 Psig)
Light Rate
0.43 Bar
(6.2 Psig)
Bar
(3)
226
(3)
91
46
15
- - -
- - -
for Design D4 Control Valves (Spring-to-Open)
(1)
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
259 3750 259
259 3750 259
259 3750 259
147 2130 178
80 1160 97
49 715 60
for Design D4 Control Valves (Spring-to-Open)
(1)
Maximum Pressure Drop
Psi
(3)
3275
(3)
1315
660
220
- - -
- - -
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 male pipe threads
with a good grade pipe compound. For flanged
Instruction Manual
September 2005
(2)
0 to 2.4 Bar
(0 to 35 Psig)
Heavy Rate
0.28 Bar
(4.0 Psig)
Psi Bar Psi
3750 259 3750
3750 259 3750
3750 259 3750
2575 198 2875
1410 109 1575
875 68 985
(2)
0.4 to 2.0 Bar
(6 to 30 Psig)
Heavy Rate
0.69 Bar
(10.0 Psig)
Bar
(4)
259
(4)
259
196
82
43
26
Form 5755
0 to 3.4 Bar
(0 to 50 Psig)
0.28 Bar
(4.0 Psig)
Bar Psi
259 3750
259 3750
259 3750
259 3750
195 2830
123 1785
Psi
(4)
3750
(4)
3750
2845
1195
630
380