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The wafer butterfly valves are low torque, quarter turn, centered disc butterfly valves, with compact design. They are widely applied as regulation, or on/off valves.
Wafer butterfly valves: MSS SP-68 or API 609
Face to face dimensions: ANSI B16.10, MSS SP-67, MSS SP-68 or 609
Test: API 598
NPS 1 1/2 -24: ANSI B16.5
NPS 30 -72: MSS SP-44 or API 605
Type of connection: RF and RTJ flange ends to ANSI B16.5 or API 605, MSS SP-44 standard.
Type of operation: Lever, Worm gear actuator, Electric actuator, Pneumatic actuator
Actuator dimensions to ISO 5211 standard.
Body |
Carbon Steel A216 WCB, A352 LCB, Alloy Steel WC6, WC9, C5, Stainless Steel CF8(M), CF3(M) |
Disc |
Carbon Steel A216 WCB, A352 LCB, Alloy Steel WC6, WC9, C5, Stainless Steel CF8(M), CF3(M) |
Seat ring |
PTFE, Stainless Steel, Graphite Spiral Wound |
Sealing face overlay |
PTFE, 13Cr, 18Cr-8Ni, Co-Cr-a |
Size |
L mm |
H mm |
Weight kg |
150 lbs |
1 1/2¡± |
33 |
250 |
7.0 |
2¡± |
43 |
260 |
8.5 |
2 1/2¡± |
46 |
284 |
11.0 |
3¡± |
49 |
322 |
15.5 |
4¡± |
56 |
338 |
18.5 |
5¡± |
64 |
372 |
22.5 |
6¡± |
70 |
404 |
28.0 |
8¡± |
71 |
496 |
50.0 |
10¡± |
76 |
558 |
64.0 |
12¡± |
83 |
632 |
80.0 |
14¡± |
92 |
672 |
104.0 |
16¡± |
102 |
714 |
137.5 |
18¡± |
114 |
768 |
177.5 |
20¡± |
127 |
828 |
227.0 |
24¡± |
154 |
952 |
306.5 |