Name | Wafer butterfly valve |
Size | 2"~48"; DN50~DN1200 |
Normal pressure | Class 125LB~250LB; PN10~PN25 |
Body material A | Cast iron: ASTM A126CL.B, DIN1691 GG25, EN 1561 EN-GIL-200 |
Body material B | Ductile iron: ASTM A53665-45-12, DIN 1693 GGG40,GGG50, EN1563 EN-GJS-200 |
Design standard | API 609, AWWA C504,MSS SP-67; DIN 3354,EN593,BS5155 |
Marked | MSS SP-25 |
End flange | ANSI B 16.1,ANSI B16.5,ASME B16.42; EN1092-2,DIN 2501,BS 4504-2,ISO 7005 |
Face to Face | API 609,MSS SP-68; DIN3202,EN558-1,EN12982,ISO 5752 |
Top flange | ISO 5211 |
Test standard | API598; DIN3230,EN12266,ISO 5208 |
Suitable temperature | -10~150°C |
Medium | Fresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc. |
Operation | Lever Hand Operated,Gear Operated, Electrical Actuated, Pheumatic Actuated |
- Disc: Concentric, Single offset, Double offset, Triple offset. |
- Seat: Soft Seat/Metal Seat (EPDM, PFA, PTFE, Steel) |
- Leak proof - Positive shut-off. |
- Phenolic Backed Seat. |
- One piece thru' Shaft. |
- Fire Safe Design |
- Flanged Ends to ASME B16.1; EN1092-2,DIN 2501,BS 4504-2,ISO 7005 |
- Operation:Bore Stem, Manual, Mechanical actuator, Electric actuator, Pneumatic actuator. |
- Application: used in large diameter (LV) air,gas pipes road and water routes |
- Clockwise closing direction |
Part Names | Part Materials | |||||||
Body | A126CL.B | GG25 | EN-GIL-200 | A53665-45-12 | GGG40 | GGG50 | EN-GJS-200 | Al-Bronze |
Yoke | A126CL.B | GG25 | EN-GIL-200 | A53665-45-12 | GGG40 | GGG50 | EN-GJS-200 | Al-Bronze |
Gland | A126CL.B | GG25 | EN-GIL-200 | A53665-45-12 | GGG40 | GGG50 | EN-GJS-200 | Al-Bronze |
Bolts/Nuts | 35/45 | 35/45 | 35/45 | 35/45 | 35/45 | 35/45 | 35/45 | B8M/8M |
Disc | Al-Bronze,DI,CF8,CF8M | |||||||
Stem | Carbon steel,SS410,SS304,SS316,MONEL K500 | |||||||
Taper Pin | Carbon steel,SS410,SS304,SS316,MONEL K500 | |||||||
O-Ring | NBR, EPDM, Neoprene, Viton | |||||||
Seat Ring | NBR, EPDM, Neoprene, PTFE, Viton, PFA,SS304+Graphite, SS304+PTFE | |||||||
Packing | Graphite/PTFE | |||||||
Bonnet Gasket | SS304+Graphite/SS316+Graphite | |||||||
Suitable Medium | FreshWater,Sewage,SeaWater,Air,Vapour,Food,Medicine,Oils,Acids,Alkalis,Salts,Etc. | |||||||
Suitable Temperature | BUNA-N(NBR)≤80°C EPDM ≤120°C VITON ≤150°C |