Stainless Steel Swing Check Valve

It is a special type of check valve used in plumbing applications to control the flow of fluids. As such, it is made of stainless steel material and designed with discs that help to prevent the backflow of fluids in pipes.

Stainless Steel Swing Check Valve
Stainless Steel Swing Check Valve

Benefits of Stainless-Steel Swing Check Valve


 They are poised to be economical to use as opposed to other types of swing check valves. As such, the stainless-steel material used in their construction is resistant to corrosion thus making them last long. With these valves, you will not experience regular replacements due to corrosion.

Resistant to Corrosion

 Stainless steel material is known for its ability to resist rust and corrosion. Stainless steel swing check valves are therefore resistant to both corrosion and rust that could otherwise call for regular maintenance.

Low Maintenance Costs

This type of valve is poised to be easy to maintain.  As such, their maintenance only involves unscrewing bonnet bolts using screwdrivers to maintain internal components and vice versa after maintenance.

Features of Stainless-Steel Swing Check Valve

Swing Discs: They are specifically designed with swing discs that play significant roles in the prevention of the back-flow of liquids in pipes.

Bonnet cover: The bonnet cover is designed in that it is bolted to allow ease of disassembly through unscrewing of bolts.

Construction material: They are made of stainless steel material that is resistant to both rust and corrosion. As such, this increases their longevity and durability.

Ease of maintenance: The bolted bonnet makes stainless steel swing check valves easy to maintain.

Stainless Steel Swing Check Valve Features
Stainless Steel Swing Check Valve Features

Parts of Stainless Steel Swing Check Valve

Body: This is the outermost part of the stainless steel swing check valve. It consists of a cover commonly referred to as a bonnet that houses internal components.

Seat: It is also a special part of the swing check valve since the disks are rested on them upon the closure of the valves. Additionally, it is also significant in ensuring a unidirectional flow of liquids through pipes.

Bonnet: It refers to the outer covering of the valve that secures internal components.

Swing disc: They significantly contribute to the general functioning of the swing check valve.

Hinge pin: They similarly consist of a hinge pin that significantly acts as the fulcrum point of the disc. This allows the discs to move freely and prevent back-flow of liquids.

Stainless Steel Swing Check Valve Parts
Stainless Steel Swing Check Valve Parts

How Stainless Steel Swing Check Valve Works

The working principle of stainless steel swing check valves differs from other types of check valves in many aspects. Therefore, this type of check valve allows fluids to only move in a unidirectional manner.

This is achieved through the revolving of the swing discs and upon exertion of excess pressure on the discs, the fluid is forced to flow in a unidirectional manner.

Upon opening of the swing discs, the seat becomes detached from the discs thus allowing effective opening of the valve.

Since a drop in fluid pressure would trigger a back-flow of fluids, the disc valves are designed to counter this back-flow by rotating back to the initially closed position.


You can use these valves in many applications today:

Chemical and gas plants: Stainless steel swing check valves are commonly applied in power and gas plants. This explains why they are usually fitted in pipelines carrying chemicals since they are corrosion-resistant.

Gas transmission: They are similarly applied in gas transmission systems since they significantly aid in regulating the undesirable flow of gas. Consequently, this helps in controlling possible leakages of gases that could result in losses and fire.

Water treatment: Water treatment systems can also use swing check valves to prevent back-flow of treated water to avoid re-contamination.


In a nutshell, various types of valves contain distinctive features and characteristics that influence their functionality and benefits. Therefore, customers should be knowledgeable of different types of valves that suit their specific needs and wants before making purchases.

Leave a Comment

Scroll to Top