Data Sheet
YD and YS Valves
D100031X012
Product Bulletin
51.1:YD
June 2014
13
Table 6. Maximum Allowable Fisher YD Shutoff Pressure Drops with 657 and 667 Actuators
(1)
(continued)
PACKING TYPE ACTUATOR SIZE
NOMINAL (ACTUAL) AIR TO DIAPHRAGM, PSIG
(2)
3-15 (0-18) 6-30 (0-33) 3-40(0-43)
nP, PSID/(Bench Set, PSIG)/Spring Drawing Number
2.3125 Inch Port, Class II Seat Leakage (High-Temperature Trim) (Continued)
ENVIRO-SEAL
Graphite ULF
40 --- --- --- --- --- ---
575
(12-30)
1E8058
45 --- --- ---
635
(8-25)
1E8271
1500
(11-22)
1E8272
--- ---
46
330
(5-13)
1E8272
1125
(6-12)
1E8266
---
1125
(6-12)
1E8258
1500
(8-24)
1E8264
--- ---
3.4375 Inch Port, Class IV Seat Leakage
Standard
Single or
Double PTFE
40 --- --- --- --- --- ---
230
(8-32)
1E8058
45
100
(5-12)
1F1773
650
(6-11)
(3)
1E9215
---
650
(6-26)
1E8268
1500
(9-24)
1E8272
--- ---
ENVIRO-SEAL PTFE
45
150
(6-11)
(3)
1E9215
--- ---
150
(6-26)
1E8268
1500
(9-24)
1E8272
--- ---
46
150
(4-14)
1E8272
1500
(6-12)
1E8269
---
1500
(6-26)
1E8267
--- --- ---
ENVIRO-SEAL
Graphite ULF
45 --- --- ---
250
(10-22)
1E8266
800
(11-20)
1E8269
---
1500
(13-29)
1E8261
46 --- --- ---
460
(7-25)
1E8263
1500
(9-24)
1E8271
--- ---
3.4375 Inch Port, Class II Seat Leakage (High-Temperature Trim)
Graphite Ribbon/
Filament (CL600)
40 --- --- --- --- --- ---
85
(8-32)
1E8058
45
500
(6-11)
(3)
1E9215
--- ---
500
(6-26)
1E8268
1500
(9-24)
1E8272
--- ---
ENVIRO-SEAL
Graphite ULF
45 --- --- ---
815
(9-24)
1E8272
1500
(11-20)
1E8269
--- ---
46
770
(6-12)
1E8269
--- ---
770
(6-26)
1E8267
1500
(7-25)
1E8263
--- ---
4.375 Inch Port, Class IV Seat Leakage
Standard
Single or
Double PTFE
45
50
(6-12)
(3)
1E9215
--- ---
50
(6-26)
1E8272
570
(7-25)
1E8270
1100
(8-24)
1E8266
1500
(9-33)
1E8265
46
800
(5-13)
1E8269
--- ---
1500
(6-26)
1E8271
--- --- ---
ENVIRO-SEAL PTFE
45 --- --- ---
80
(7-25)
1E8270
620
(8-24)
1E8266
---
1150
(9-33)
1E8265
46
325
(5-13)
1E8269
--- ---
1125
(6-26)
1E8271
1500
(7-23)
1E8265
--- ---
ENVIRO-SEAL
Graphite ULF
45 --- --- --- --- --- ---
200
(11-31)
1E8272
46 --- --- ---
260
(7.5-21)
1E8272
--- --- ---
-continued-