A Non Return Valve (NRV), also known as a check valve, is a mechanical device designed to allow fluid (liquid or gas) to flow in only one direction. It prevents backflow and ensures that pipelines, pumps, and equipment remain protected from reverse pressure or contamination. NRVs are commonly used in water supply systems, chemical plants, power stations, and process industries.
Non Return Valve Features:
| Valve Size | 1 Inch To 12 Inch |
| Material | Stainless Steel |
| Usage/Application | Industrial / Water / Oil / Gas / Steam Lines |
| Design | Swing Type / Lift Type / Dual Plate / Wafer Type |
| Color | Metallic |
| End Connection | Flanged |
| Opening Pressure | Low Cracking Pressure (Typically 0.3 - 0.5 Bar) |
| Seat Type | Metal To Metal / Soft Seated (EPDM / NBR / PTFE) |
| Media Type | Water, Steam, Oil, Gas, Chemicals |
| Flow Direction | Unidirectional (Marked On Body) |
| Installation Position | Horizontal |
| Temperature Range | -10°C To 140°C (EPDM) |
| Body Type | Straight Patter |
| Corrosion Resistance | Yes (with Optional Surface Treatment Or Coating) |
| Leakage Class | Class IV / VI (optional Soft Seat) |
| Finish | Powder Coated |
| Place Of Use | Water Plants, Pump Lines, Process Industries |
| Availability | In Stock |
| Trader By | Shiv TechSource (STS) |
| Country Of Origin | India |