Metal Non Return Valve (NRV)
A Metal Non Return Valve (NRV) is a type of one-way valve designed to allow fluid to flow in a single direction while automatically preventing reverse flow. Constructed from robust metals such as stainless steel, carbon steel, cast iron, or alloy steel, NRVs are widely used to protect pumps, compressors, and piping systems from potential damage caused by backflow. These valves operate automatically using differential pressure, requiring no manual intervention, making them highly reliable for continuous industrial operations.
Key Features of Metal Non Return Valve (NRV)
- One-Way Flow Control: Ensures fluid flows in only one direction.
- Automatic Operation: No external actuation required, operates on flow pressure.
- Durable Metal Body: Suitable for high-pressure and high-temperature applications.
- Leak-Proof Performance: Designed for tight sealing against reverse flow.
- Versatile Designs: Available in swing, lift, piston, and wafer-type constructions.
- Corrosion Resistant Options: Stainless steel and alloy materials for aggressive media.
- Low Maintenance: Simple design with minimal wear parts.
- Multiple End Connections: Flanged, threaded, butt weld, and socket weld available.
Technical Information
| Parameter | Details |
|---|---|
|
Valve Type |
Metal Non Return Valve (NRV) |
|
Material Options |
Stainless Steel, Carbon Steel, Alloy Steel, Cast Iron |
|
Sizes Available |
½” to 48” (custom sizes available) |
|
Pressure Ratings |
Class 150, 300, 600, 900, 1500 (as per ASME/ANSI standards) |
|
End Connections |
Flanged, Socket Weld, Butt Weld, Threaded |
|
Types Available |
Swing NRV, Lift NRV, Wafer NRV, Piston NRV |
|
Operation |
Automatic – Flow Actuated |
|
Temperature Range |
-29°C to +600°C (depending on material & seat design) |
|
Design Standards |
API 594 / BS 1868 / ASME B16.34 / DIN Standards |
|
Applications |
Oil & Gas, Petrochemical, Water Supply, Power Plants, Chemical Processing, Marine |
Metal Valves Product Range
Custom Product Manufacturing Available
If you are searching for customized product designs that meet your requirements, don’t worry. Petron Thermoplast also offers custom product manufacturing services to meet the unique needs of various industries. Work with our expert engineers to create custom designs suited for your application.
