The Check Valve Cast Iron NRV PN 1.6 with Bypass (Flanged) — 1083C is listed in Hrivika's Valves catalogue. It is listed in eight sizes, from 2" (50 mm) to 10" (250 mm).
One-way (non-return) valve for 50 mm (2") lines — flow pushes it open, reverse flow shuts it automatically; no handle. Swing + bypass gate valve design, works in horizontal or vertical lines. Cast iron construction, Flanged IS 1538 / IS 5312 Pt 1 ends. Tested to 2.4 MPa shell / 1.6 MPa; up to 80°C. For water. Factory-fitted GI bypass with ISI Class-2 bronze gate valve.
| Orientation | Horizontal or vertical |
| Mechanism | Swing + bypass gate valve |
| Ends / flange std | Flanged IS 1538 / IS 5312 Pt 1 |
| Shell test | 2.4 MPa |
| Seat test | 1.6 MPa |
| Max temp | 80°C |
| Fluids | Water |
| Size (inch) | Size (mm) |
|---|---|
| 2" | 50 |
| 2 1/2" | 65 |
| 3" | 80 |
| 4" | 100 |
| 5" | 125 |
| 6" | 150 |
| 8" | 200 |
| 10" | 250 |
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