Data Sheet

YD and YS Valves
D100031X012
Product Bulletin
51.1:YD
June 2014
12
Table 6. Maximum Allowable Fisher YD Shutoff Pressure Drops with 657 and 667 Actuators
(1)
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
1.3125 Inch Port, Class IV Seat Leakage
Standard
Single or
Double PTFE
30
100
(5-13)
1F1768
500
(6-12)
1F1767
925
(7-11)
(3)
1J1722
500
(6-26)
1E7953
1335
(8-24)
1J2581
1500
(10-22)
1E7923
---
34
1130
(5-13)
1E8053
1500
(6-12)
1E8056
---
1500
(6-26)
1E8051
--- --- ---
ENVIRO-SEAL PTFE
30
290
(7-11)
1J1722
--- ---
710
(8-24)
1J2581
1500
(10-22)
1E7923
--- ---
34
500
(5-13)
1E8053
1125
(6-12)
1E8056
---
1125
(6-26)
1E8051
1500
(8-24)
1E8055
--- ---
ENVIRO-SEAL
Graphite ULF
30 --- --- --- --- --- ---
540
(14-28)
1F7143
34 --- --- ---
955
(10-22)
1E8058
1500
(12-20)
1E8053
---
1500
(13-29)
1E8055
1.3125 Inch Port, Class II Seat Leakage (High-Temperature Trim)
Graphite Ribbon/
Filament (CL600)
30 --- --- ---
320
(8-24)
1J2581
1500
(11-21)
1F1769
--- ---
34
110
(5-13)
1E8053
740
(6-12)
1E8056
1370
(7-11)
1F1771
740
(6-26)
1E8051
1500
(8-24)
1J2581
--- ---
ENVIRO-SEAL
Graphite ULF
30 --- --- ---
30
(11-21)
1F1769
450
(12-20)
1F1768
---
1300
(14-28)
1F7143
34 --- --- ---
450
(8-24)
1E8055
1500
(10-22)
1E8058
--- ---
2.3125 Inch Port, Class IV Seat Leakage
Standard
Single or
Double PTFE
40
250
(6-12)
1F1771
--- ---
250
(6-26)
1E8054
600
(7-25)
1E8058
1500
(10-22)
1E8053
---
45
275
(4-14)
1E8270
820
(5-12)
1E8269
1350
(6-11)
1F1773
1350
(6-26)
1E8263
1500
(8-25)
1E8271
--- ---
ENVIRO-SEAL PTFE
40 --- --- ---
120
(7-25)
1E8058
820
(9-24)
1E8057
1170
(10-22)
1E8053
1500
(12-30)
1E8058
45
330
(5-12)
1E8269
870
(6-11)
1F1773
---
865
(6-26)
1E8263
1500
(8-25)
1E8271
--- ---
ENVIRO-SEAL
Graphite ULF
45 --- --- ---
430
(9-24)
1E8268
1500
(11-22)
1E8272
--- ---
46
385
(6-12)
1E8266
--- ---
385
(6-26)
1E8258
1500
(8-24)
1E8264
--- ---
2.3125 Inch Port, Class II Seat Leakage (High-Temperature Trim)
Graphite Ribbon/
Filament (CL600)
40 --- --- ---
90
(7-25)
1E8058
790
(9-24)
1E8057
1145
(10-22)
1E8053
1500
(12-30)
1E8058
45
300
(5-12)
1E8269
840
(6-11)
1F1773
---
840
(6-26)
1E8263
1500
(8-25)
1E8271
--- ---
-continued-