In industrial piping systems, unwanted reverse flow can affect pumps, compressors and other connected equipment. SVR Global supplies solutions as a Check Valve Manufacturer in USA, with different designs available for liquid, gas, steam and process applications where reliable backflow prevention is required.

What is a Check Valve?
A check valve, also known as a non-return valve, is an automatic valve that allows fluid to move in one direction and closes when the flow begins to reverse. It operates according to the direction and pressure of the fluid, without requiring a handwheel or external actuator.

Check Valve Features

Check valves are designed to respond automatically to changes in flow while helping protect the piping system and connected equipment. Key features include:

·        Prevents reverse flow and keeps fluid moving in the intended direction

·        Protects pumps, compressors and connected equipment from backflow

·        Helps reduce water hammer with suitable spring-assisted or non-slam designs

·        Operates automatically without an external actuator

·        Provides a relatively low pressure drop during forward flow

·        Available with different seating, connection and installation configurations

Types of Check Valve

Different check valve designs are used depending on flow conditions, installation arrangement and the required closing behaviour. The SVR Global range includes:

Check Valve Specifications

What Happens When Flow Changes?

Forward Flow
Pressure from the upstream side moves the disc, plate or closure element away from the seat and creates a flow path through the valve.

Flow Deceleration
As velocity decreases, the force holding the closure element open also reduces and the valve begins moving toward the closed position.

Reverse Flow
The disc or plate returns to the seat before or as flow reverses, helping prevent backflow into the upstream piping or equipment.

Industries Using Check Valves