Data Sheet

Control-Disk Valve
D103297X012
Product Bulletin
51.3:Control-Disk
July 2012
11
Table 6. Maximum Allowable Shutoff Pr essure Drops based on Trim (Seal, Shaft, and Bearings), Psi
Note: Do not exceed the E N or ASME pressure/temperature rating of the valve or mating flanges.
TRIM TEMPERATURE, _F
NPS
2 3 4 6 8 10 12
Psi
PTFE or RPTFE Seal
PEEK/PTFE Bearings
-50 to 150
200
250
300
375
400
450
750
704
560
416
200
150
50
750
704
560
416
200
150
50
750
704
560
416
200
150
50
750
704
560
416
200
150
50
750
704
560
416
200
150
50
511
508
490
416
200
150
50
600
563
518
416
200
150
50
UHMWPE Seal
PEEK/PTFE Bearings
0 to 100
150
200
750
560
375
750
560
375
750
560
375
750
560
375
750
560
375
511
509
375
600
560
375
Metal Seal
(1)
Alloy 6 Bearings
-50 to 100
200
300
400
500
600
700
800
850
268
246
232
219
208
200
192
181
176
239
219
206
195
186
178
172
168
167
202
185
174
165
157
150
145
142
141
185
170
160
151
144
138
134
130
129
159
146
137
130
124
119
115
112
111
99
91
86
81
77
74
72
70
69
102
94
88
83
79
76
73
72
71
Metal Seal
(1)
S31600/Nitride
Bearings
-50 to 100
200
300
400
500
600
700
800
850
283
280
246
230
211
200
192
181
176
409
406
369
352
332
321
312
300
295
379
377
344
329
311
301
293
283
278
301
299
271
258
243
235
228
220
216
450
450
417
382
357
337
325
316
313
225
223
203
193
182
176
171
165
162
116
115
103
98
91
88
85
81
79
Metal Seal
(1)
PEEK/PTFE Bearings
-50 to 100
200
300
400
450
500
750
750
730
705
685
358
750
750
730
705
685
318
750
750
730
705
672
269
750
750
730
699
618
247
450
450
450
450
450
212
250
250
250
250
250
132
250
250
250
250
250
136
1. Pressure drops shown for metal seals are for forward flow only.