Non-Return Valve (NRV) Check Valve 1/4″

The 1/4″ Non-Return Valve (NRV), also known as a Check Valve, is a one-way flow control component designed to prevent reverse water flow in filtration and RO systems. It ensures that water moves only in the intended direction, protecting sensitive components such as RO membranes, pumps, and filters from back-pressure damage. Compact and easy to install, this valve is widely used in household and commercial water purification setups.

Key Features

• One-way flow design prevents backflow and reverse pressure

• Protects RO membrane and system components

• Standard 1/4″ connection compatible with RO tubing

• Durable construction for long-term reliability

• Leak-proof internal sealing ensures efficient performance

• Quick and simple installation

Applications

• RO (Reverse Osmosis) water purifiers

• Under-sink water filtration systems

• Water dispensers

• Countertop filter units

• Any system requiring backflow protection on 1/4″ water lines

Typical Specifications

• Connection Size: 1/4″ tube (push-fit or threaded type depending on model)

• Function: One-way check valve

• Body Material: Plastic or metal (model-specific)

• Pressure Rating: 3 – 10 bar

• Temperature Range: 0 – 60°C

• Suitable Media: Filtered / RO water