Construction is as follows
| 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, GGG 5 0 , EN1563 EN-GJS-200 |
| Design standard | API 6 09, AWWA C504,MSS SP-67; DIN 3354 ,EN593,BS5155 |
| M arked | 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 ~ 15 0°C |
| Medium | Fresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc. |
| Operation | Lever Hand Operated,Gear Operated, Electrical Actuated, P heumatic 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 | GGG 5 0 | EN-GJS-200 | Al-Bronze |
| Yoke | A126CL.B | GG25 | EN-GIL-200 | A53665-45-12 | GGG40 | GGG 5 0 | EN-GJS-200 | Al-Bronze |
| Gland | A126CL.B | GG25 | EN-GIL-200 | A53665-45-12 | GGG40 | GGG 5 0 | EN-GJS-200 | Al-Bronze |
| Bolts/Nuts | 35/45 | 35/45 | 35/45 | 35/45 | 35/45 | 35/45 | 35/45 | B 8M / 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 | N BR, EPDM, Neoprene, PTFE, Viton , PFA, SS304+Graphite , SS304+ PTFE | |||||||
| Packing | Graphite/PTFE | |||||||
| Bonnet Gasket | SS304+Graphite/SS3 16 +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 | |||||||
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