​SS316 Threaded End Spring Check Valve

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Description:
Spring check valve is a valve that allows fluid to flow in one direction only. Spring check valve also known as one way valve or non-return valve. The difference between a spring check valve and swing check valve is spring check valves can be used for vertical piping.

Spring check valves are two-port valves, one for fluid to enter (inlet port) and the other for fluid to leave (outlet port). When the fluid flow from inlet port, it will need at least 1 Bar working pressure to push the disc open for fluid to flow through. If there are any back flow from outlet port, it will push the disc back and block the fluid.

There are various types of check valves used in a wide variety of applications. The operation of spring check valve do not require any valve handle or stem as long as there are 1 Bar working pressure from the fluid flow. It is available in stainless steel SS316 material for better corrosion resistance. 

Features:​
Size Range
​1/4" to 2"
Design
Spring Type Check Valve
Material
SS316 / CF8M
Seat Ring Type
​Metal / Viton
Working Pressure
1000 PSI
Connections
BSPP / NPT
Applicable Medium
General Oil, Gas & Water Applications ​
Temperature Range
-29°C to +150°C​​
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Spring Check Valve Metal Seat Drawing:
Spring Check Valve Metal Seat Drawing
Spring Check Valve Metal Seat Drawing
​Material: 
NO
​PART NAME
MATERIAL
1
Body
SS316, CF8M
2
Spring
SS316
3
Disc
SS316, CF8M
4
Cap
SS316, CF8M
Spring Check Valve Viton Seat Drawing:
Spring Check Valve Viton Seat Drawing
Spring Check Valve Viton Seat Drawing
​Material: 
NO
​PART NAME
MATERIAL
1
Body
SS316, CF8M
2
Spring
SS316
3
Disc
SS316, CF8M
4
Seat Ring - (O-Ring)
Viton
5
Cap
SS316, CF8M
6
Seal Gasket
PTFE
Ordering Information Available:

In order to serve you better, we have added Ordering Information for your easy reference.

Please feel free to access our Ordering Information.
Spring Check Valve Catalogue available in pdf:
Product Literature in pdf:

FREQUENTLY ASKED QUESTIONS

​What is the size range of spring check valves?
​The size range of the spring check valves is from 1/4 inches to 2 inches.
​What is spring check valves made of?
​It is made of stainless steel SS316.
​What is the working pressure of spring check valves?
​The working pressure that spring check valves can withstand up to 1,000 psi.
​What is the working temperature range of spring check valves?
​The working temperature range of spring check valves is from -29°C to 150°C.
​How many types of sealing for spring check valves?
​There are two types of sealings which are soft seats and metal seats.
​How to differentiate soft seats and metal seats?
Soft seats are generally made from thermoplastic material (eg. Viton or PTFE). They're ideal for tight-sealing applications that require chemical compatibility. In contrast, metal seats valves are manage to withstand high temperatures, working pressure and severe service conditions. They are great for high erosion or corrosion applications.
​What is the function of spring check valves?
Spring check valves are used to prevent reverse flow and ensure one flow direction by utilizing a spring or back pressure to shut the valve.
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