
One-way (non-return) valve for 15 mm (1/2") lines — flow pushes it open, reverse flow shuts it automatically; no handle. Lift (gravity) disc design, for horizontal pipe runs only. Bronze construction, Screwed BSP (IS 554) ends. Tested to 1.5 MPa shell / 0.25 MPa; up to 45°C. For water, oil. IS 778 Class-1. Bonnet forged brass on 15/20/25 mm.
| Orientation | Horizontal only |
| Mechanism | Lift (gravity) disc |
| Ends / flange std | Screwed BSP (IS 554) |
| Shell test | 1.5 MPa |
| Seat test | 0.25 MPa |
| Max temp | 45°C |
| Fluids | Water, Oil |
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