Caliper Overseas is a trusted Double Off-Set Disc Butterfly Valve manufacturer and supplier in India, delivering top-quality industrial valve solutions. A Double Offset Disc Butterfly Valve is engineered with the disc and stem both offset from the valve center, creating a cam-like motion that improves sealing efficiency. This advanced design reduces seat contact during operation, ensuring minimal wear and extending the valve's operational life. It’s ideal for handling higher pressures and temperatures, making it suitable for demanding applications.
Designed in compliance with international standards such as API 609, BS 5155, AWWA C504, and ASME/ANSI B16.5, these valves offer excellent durability, compact design, and smooth operation. Key features include size ranges from 2” to 48”, pressure ratings up to Class 300, flanged/wafer/lugged body styles, and blowout-proof shafts. They are available with manual, pneumatic, or electric actuation. Valves are securely packaged to ensure safe delivery. For reliable performance and long-lasting service, choose high-quality butterfly valves built with precision and care.
Table Of Content
About Double Off-Set Disc Butterfly Valves
Double Off-Set Disc Butterfly Valve Specification
Stock Availability of Double Off-Set Disc Butterfly Valve
Double Off-Set Disc Butterfly Valves Ready Stock
Double Eccentric Butterfly Valves Applications and Uses
Supply & Export Destinations of Double Off-Set Disc Butterfly Valve
Design Standards | API-609/ASME-B-16.34/ EN593 |
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Size Range | NPS 2” – 50” / DN 50- 1250 |
Maximum Pressure/Rating | 20 bar – 150#/ 50bar – 300# |
Design Temperature | -50°C to +500°C (MOC Dependant) |
End Connections | Wafer / Lug / Flange |
Valve Sizes | 2" (50mm) to 120" (3000mm) |
Ratings | Class 150 , Class 300 ,Equivalent to DIN PN2.5, PN6, PN10, PN16, PN25, PN40 |
Body Seat | PTFE / RPTFE / Metal / Inconel 625, SS316 |
Body Style | Flanged ( 2" to 128" Only) & Lugged & Wafer ( 2" to 80" Only) |
Shaft | AISI 410, AISI316, 17-4Ph, Monel® K500, UNS32760, Titanium |
Body Materials | Carbon Steels inc. Low Temp Austenitic/ Super Austenitic Stainless steels Aluminium bronze Duplex/ Super Duplex alloys (1A-6A) Hastelloy® B, C, Inconel Monel®, Alloy 20 Others upon request |
Fire Safe | API-607 |
Testing | API-598/EN-12266, FCI 702 |
Seat Leakage Option | Class VI for PTFE, EPDM, Viton Soft Seats,Class IV for Flexible Metal Seats |
Flow Direction | Bi Directional |
Application & uses | Water distribution Water treatment Wastewater Dams Power plants Industry |
MATERIAL | CASTING | FORGING |
CARBON STEEL | A216 Gr. WCB, A217 Gr. WC6, A217 Gr. WC9 | A105 |
LOW TEMP CARBON STEEL | A352 Gr. LCB, A352 Gr. LCC | A350 Gr. LF2 |
STAINLESS STEEL | A351 Gr. CF8M, A351 Gr. CF8, A351 Gr. CF3M, A351 Gr. CF3 | A182 Gr. F316, A182 Gr. F304, A182 Gr. F316L, A182 Gr. F304L |
DUPLEX | A995 Gr. 4A | A182 Gr. F51 |
SUPERDUPLEX | A995 Gr. 5A, A995 Gr. 6A | A182 Gr. F55 |
HAST C | A494 Gr. CW-12MW | B574 UNS N10276 |
ALLOY 20 | A351 Gr. CN7M | B462 Gr. N08020 |
BRONZE | B62 Gr. C83600 | |
ALUMINIUM BRONZE | B148 Gr. A | B150 Gr. C62300 |
NICKEL AL BRONZE | B148 Gr. D | B150 Gr. C62300 |
TITANIUM | B381 | B381 |
MONEL | MONEL 400, MONEL K-500 | MONEL 400, MONEL K-500 |
NICKEL | - | INCONEL 625, INCONEL 825, INCONEL 718, INCONEL X750 |
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Stainless Steel Double Off-Set Disc Butterfly Valve
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