Reflux valves or non-return valves are one-way directional valves which permit fluid flow in one direction only and never offer backflow, thus safeguarding pipelines and pumps. Caliper Overseas is a reliable Reflux Valve Manufacturer and Reflux Valve Supplier in India, provides superior quality valves that facilitate smooth, efficient and safe operations in numerous industries.
These are strong-built valves, corrosion resistant and highly durable. They offer minimal pressure drop, minimal maintenance and tight sealing. Manufactured to international quality standards, each of these valves is submitted to a test of high temperature and pressure durability and performance. They come in different sizes and materials for use in different pipeline systems and applications needs in various industries.
For reliable reflux valves needs, call us today!

| Design Standards | 1S 5312 / IS: 5312 – 2 |
|---|---|
| Size Range | 40 to 700 mm (Single Door) Pressure up to PN 1.6 |
| Conforming to | IS - 5312 (Part-1) Pressure upto PN 16 Conforming to BS EN 12334 (formerly BS : 5153) |
| Pressure Rating | PN 0.6, PN 1.0, PN 1.6 |
| Flanged ends | as per IS:1538 PN-1.6 (FF) |
| Maximum Working Pressure | 16 Bar |
| Maximum Working Temperature | 45°C |
| Application & uses | Water distribution Water treatment Wastewater Dams Power plants Industry |
| P. NO. | NAME OF PART | MATERIAL | SPECIFICATION |
|---|---|---|---|
| 1 | STUDS & NUTS | CARBON STEEL | IS 1363 |
| 2 | COVER | CAST IRON | IS 210 Gr. FG200 |
| 3 | GASKET | C.N.A.F/RUBBER | IS 638 TYPEB |
| 4 | HINGE PIN | H.T. BRASS | IS 6912 FHTB1 |
| 5 | HINGE | CAST IRON | IS 210 Gr. FG200 |
| 6 | BODY | CAST IRON | IS 210 Gr. FG200 |
| 7 | SEAT RING | LEADED IN BRONZE | IS 318 LTB2 |
| 8 | DISC | CAST IRON | IS 210 Gr. FG200 |
| 9 | DISC RING | LEADED IN BRONZE | IS 318 LTB2 |
| 10 | WASHER | LEADED IN BRONZE/BRASS | IS 318 LTB2 |
| 11 | NUT | H.T. BRASS | IS 6912 FHTB1 |
| 12 | SIDE PLUG | LEADED IN BRONZE | IS 318 LTB2 |
Reflux Check Valves in Distillery Plants
Reflux Check Valves in Sugar Industries
Reflux Check Valve in Process Industries
Reflux Check Valve in Power Plants
Reflux Check Valve in Refineries
Reflux Check Valve in Petrochemical Plants
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