CI Non Return Valves
Cast Iron Non-Return Valves (IS:5312 Part 1 & Part 2)
Cast Iron Non-Return Valves (NRVs) are manufactured in full compliance with IS:5312 (Part 1: Swing Type Single Door, Part 2: Swing Type – Multi Door) and are designed to prevent reverse flow in water supply, sewage, and pumping systems. Built with a durable cast iron body, these NRVs ensure dependable performance, low head loss, and minimal maintenance.
Suitable for vertical & horizontal installations, these valves are ideal for municipal water networks, irrigation lines, and industrial pipelines where backflow protection is essential.
KEY FEATURES
- Compliant with IS:5312 Part 1(Single Door) & Part 2 (Multi Door)
- Body Material: Cast Iron (IS:210 FG 200)
- Seating: Renewable gunmetal or bronze rings / Rubber Seating
- Disc Type: Hinge-mounted disc (Swing) with Single Door upto 600mm and Multi Door above 600mm
- Flow Direction: Vertical / Horizontal
- End Connections: Flanged to IS:1538 Table 4 & 6
- Coating: Black Bitumen
- Pressure Rating: PN1.0 / PN1.6
- Sizes Available: 50 mm to 600 mm (Single Door) & 700mm – 1500mm (Multi Door)
- Accessories: Available with optional External Bypass Arrangements and Dashpot Arrangements as well.
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