Butterfly valve is a control device employed to open or close and regulate fluid flow in pipelines. It is composed of a turning disc that either closes or opens the passage using a simple quarter-turn movement. Caliper Overseas is a trusted butterfly valve manufacturer and supplier in India, supplies high quality valves designed according to API 609, ASME-B-16.34 and EN593 standards.
These valves are light weight, compact and suited for confined spaces. They give excellent shut-off at low torque, thereby being energy efficient. With minimal maintenance requirements and corrosion-resistant design, they ensure long-term reliability both in industrial and commercial uses. The valves can be used for dealing with liquids, gases and semi-solid substances under the varying pressure and temperature conditions.
Find quality butterfly valves that give reliable performance and meet your project specifications.

| Design Standards | API 609/ ASME-B-16.34 / EN593 |
|---|---|
| Size Range | NPS 1 1⁄2” – 48” / DN 40- 1200 |
| Maximum Pressure/Rating | IVGK / IVTL 20 bar 150#, IVDF 16 bar PN16 |
| Design Temperature | -40°C to +180°C |
| End Connections | Wafer / Lug / Double Flanged |
| Valve Sizes | 2" (50mm) to 120" (3000mm) |
| Ratings | Class 150 , Class 300 ,Equivalent to DIN PN2.5, PN6, PN10, PN16, PN25, PN40 |
| Body Seat | IVGK – Replaceable / Bonded, IVTL / IVDF – Bonded to body |
| 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 |
| Face to Face | EN 558 / API 609 BS 5155 |
| Testing | BS-6755 Part-1/API-598/EN-12266 |
| Top Flange | ISO 5211 |
| Application & uses | Water distribution Water treatment Wastewater Dams Power plants Industry |
| 1. | Plate | POM |
| 2. | O-ring | EPDM rubber |
| 3. | Ring | POM |
| 4. | Body | Ductile iron GJS-500-7 (GGG-50) |
| 5. | Bearing | Bronze/PTFE composite |
| 6. | Shaft, drive | Stainless steel 1.4021 |
| 7. | Liner | EPDM rubber |
| 8. | Disc | Ductile iron GJS-500-7 (GGG-50) |
| 9. | Shaft, stub | Stainless steel 1.4021 |
| 10. | O-ring | NBR rubber |
| 11. | Plug | POM |
| 12. | Screw | Stainless steel A2 |
Butterfly Valves in Distillery Plants
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