Non Return Valves
Concorde Valves & Automations: India’s Leading Manufacturer and Supplier of Non Return Valves (NRV)
Need reliable non return valves (NRV) for water, air, or hydraulic systems? Concorde Valves & Automations manufactures and supplies ISO-compliant NRVs, including swing check, disc check, and non-slam check valves, built for durability, tight shut-off, and long service life at competitive prices.
What is a Non Return Valve?
A non return valve (check valve) allows flow in one direction and prevents backflow, protecting pumps, compressors, and pipelines from reverse flow damage. NRVs are essential in water supply, air compressors, and hydraulic systems where system integrity and safety matter.
Types of Non Return Valves Offered by Concorde Valves & Automations
Choose from our application-specific range of NRVs engineered for consistent performance and easy maintenance:
Swing Check Valve
Our swing check valves use a hinged disc that swings open with forward flow and closes to prevent backflow. Ideal for low-to-moderate velocities and clean media. Variants include swing type check valve, swing check non return valve, and brass swing check valve. Available sizes: 1/2" to 24".
Disc Check Valve
Disc check valves offer compact design and rapid response for high-flow and pulsating applications. The spring-loaded disc opens with differential pressure and closes instantly to stop reverse flow, reducing water hammer and pressure shocks. Available in multiple materials and sizes.
Disc Check Valve Technical Specifications
| Body Construction |
ASTM A351 Gr. CF8 / CF8M |
| Disc | AISI 304 or AISI 316 |
| Spring | AISI 304 or AISI 316 |
| Spring Retainer | AISI 304 or AISI 316 |
| Disc Seat | Metal to Metal |
| Pressure Rating | PN 40 |
| Flange Standard |
1. BS 10 Table D, E & H (65 NB & 80 NB will not fit between ‘E’ flanges) 2. DIN: PN 6, 10, 16, 25, 40 3. JIS 5, 10, 16, 20 (40 NB, 50 NB, 80 NB & 100 NB will not fit between JIS 5 flanges) |
High-Performance Non Return Valve
Size Range: 1/2" to 2" [Female BSP / NPT]
Technical Specifications
| Body | CF8 / CF8M |
| Valve Pin | SS 304 / SS 316 |
| Spring | SS 304 |
| O-Ring | Viton |
| Ends | Screwed |
| Size | 1/2" to 2" |
| Leakage Test | Bubble-tight |
| Pressure | 3000 PSI |
| Temperature | Up to 100 °C (High-temperature options available) |
| Media | Air, Water, Oil & Gas |
Swing Check Valve
A swing check valve comprises a valve body, bonnet, and a hinged disc. The disc swings away from the seat to permit forward flow, then returns to the seat as upstream pressure drops, preventing backflow. Multiple disc and seat designs are available to match specific applications. These valves offer full, unobstructed flow and close as pressure decreases, minimizing turbulence and pressure drop.
Water Non-Return Valve
Purpose-built for potable and process water, our water NRVs ensure reliable isolation and backflow prevention in residential, commercial, and industrial networks.
Air Compressor Non-Return Valve
Designed to maintain compressor efficiency by stopping reverse airflow into the compressor, reducing wear and lowering maintenance costs.
Hydraulic Non-Return Valve
Engineered for high-pressure hydraulic circuits to prevent reverse flow, protect components, and maintain system efficiency.
Non-Return Valve Sizes and Prices
We supply NRVs across common line sizes for diverse duties. Contact us for the latest pricing and dispatch timelines:
- 1 Inch Non-Return Valve: Compact solution for small-capacity lines.
- 2 Inch Non-Return Valve Price: Popular for medium-duty systems.
- 3 Inch Non-Return Valve Price: Supports higher flow rates with stable shut-off.
- 4 Inch Non-Return Valve: Heavy-duty performance for industrial service.
Key Functions of Non-Return Valves
NRVs allow one-way flow and automatically close to prevent backflow. They safeguard pumps, compressors, meters, and process equipment from reverse pressure spikes, water hammer, and contamination.
Applications of Non-Return Valves
Our valves are specified across multiple sectors:
- Water Pump Non-Return Valve: Prevents backflow in potable and process water systems.
- Air Compressor Non-Return Valve: Maintains line pressure and compressor health.
- Hydraulic Systems: Keeps circuits pressurized and prevents reverse flow under dynamic loads.
Why Choose Concorde Valves & Automations for Your Non-Return Valves?
We combine manufacturing depth with application engineering to deliver dependable NRVs.
- Superior Quality: Materials and processes aligned to international standards for long service life.
- Extensive Range: Swing, disc, and non-slam check valves to match your duty conditions.
- Competitive Pricing: Factory-direct pricing with consistent quality control.
- Expert Guidance: Technical support from specification to commissioning.
