SUS304 Stainless Steel Spring Check Valve with Strainer – 1.6 MPa
SUS304 stainless steel spring check valve with integrated strainer for preventing reverse flow while helping screen debris from compatible piping systems. Rated for 1.6 MPa working pressure and -30°C to 120°C operating temperature. Available in DN15, DN20, DN25, DN32, DN40 and DN50 for water, steam and compatible non-corrosive liquids.
The SUS304 stainless steel spring check valve with strainer
combines automatic reverse-flow prevention with an integrated
strainer section in a compact valve body.
The spring-assisted check mechanism allows flow in the intended
direction and closes automatically when flow reverses,
while the strainer helps intercept debris before it continues
through the piping system.
The current specification lists a working pressure of
1.6 MPa and a working-temperature range of
-30°C to 120°C.
Available sizes are DN15, DN20, DN25, DN32,
DN40 and DN50. Water, steam and compatible
non-corrosive liquids are listed as working media.
Key Product Features
SUS304 Stainless Steel
The valve material is specified as SUS304 stainless steel.
Spring Check Mechanism
Spring-assisted closing helps prevent reverse flow
automatically when the flow direction changes.
Integrated Strainer
The upper strainer section helps screen debris from
compatible fluid systems.
1.6 MPa Working Pressure
Current technical data lists a working pressure
of 1.6 MPa.
-30°C to 120°C
Listed temperature range for compatible operating conditions.
DN15 to DN50
Six nominal sizes are available within the current series.
Technical Specifications
| Product Type | Spring Check Valve with Strainer |
|---|---|
| Material | SUS304 Stainless Steel |
| Function | Reverse-flow prevention with integrated straining |
| Working Pressure | 1.6 MPa |
| Working Temperature | -30°C to 120°C |
| Working Media | Water / Steam / Compatible non-corrosive liquids |
| Available Sizes | DN15 / DN20 / DN25 / DN32 / DN40 / DN50 |
| Connection Type | To be confirmed |
| Spring Material | To be confirmed |
| Sealing Material | To be confirmed |
| Strainer Mesh | To be confirmed according to project requirements |
| Cracking Pressure | To be confirmed |
Buyer Note:
connection type, spring material, sealing material,
strainer mesh and cracking pressure are not specified
in the current technical sheet and should be confirmed
before quotation when required.
Available Sizes
| Nominal Size | Material | Working Pressure |
|---|---|---|
| DN15 | SUS304 | 1.6 MPa |
| DN20 | SUS304 | 1.6 MPa |
| DN25 | SUS304 | 1.6 MPa |
| DN32 | SUS304 | 1.6 MPa |
| DN40 | SUS304 | 1.6 MPa |
| DN50 | SUS304 | 1.6 MPa |
Spring Check Valve Function
A spring check valve is designed to allow flow in one direction
and close automatically when the flow reverses.
The spring assists the closing movement of the internal check
element. Actual opening characteristics depend on the spring
force, valve size and internal design.
If cracking pressure is important for the application,
it should be confirmed separately before ordering.
Integrated Strainer
The product incorporates a metal strainer section that can help
prevent larger debris from entering downstream components.
This combined structure can reduce the need for a separate
strainer in some compatible installations.
The filtration mesh size is not identified in the current
specification. If particle filtration is a critical requirement,
confirm the required mesh before ordering.
Typical Applications
Water Systems
Reverse-flow protection and debris screening
in compatible water systems.
Steam Systems
Steam is listed as an applicable medium within
the specified operating range.
Industrial Fluid Systems
Can be evaluated for compatible non-corrosive
industrial liquids.
Equipment Protection
The check and strainer functions can help protect
compatible downstream equipment from reverse flow
and larger debris.
What Should Buyers Confirm Before Ordering?
- Required size: DN15, DN20, DN25, DN32, DN40 or DN50
- Connection type and thread or pipe standard
- Actual working pressure
- Minimum and maximum temperature
- Working medium
- Required cracking pressure, when critical
- Spring material
- Sealing material
- Required strainer mesh size
- Required installation orientation
- Quantity by size
- Product marking and packaging requirements
OEM and Project Supply
SUNRICH FLOW works with manufacturing partners to coordinate
specifications, production requirements, quality follow-up,
marking and packaging for international buyers.
For OEM or replacement projects, technical drawings,
connection information and operating conditions can help
confirm the required valve configuration.
Frequently Asked Questions
What material is this valve made from?
The current specification lists SUS304 stainless steel.
What is the working pressure?
The listed working pressure is 1.6 MPa.
What sizes are available?
DN15, DN20, DN25, DN32, DN40 and DN50.
What is the temperature range?
The listed working-temperature range is -30°C to 120°C.
Does the valve include a strainer?
Yes. The product integrates a strainer section
with the spring check valve.
What is the strainer mesh size?
The current technical sheet does not specify the mesh size.
Confirm the required filtration level before ordering.
Looking for Stainless Steel Check Valves with Strainers?
Send us the required DN size, connection requirement,
working medium, pressure, temperature and quantity.
SUNRICH FLOW can review the specification and prepare
a quotation for your project.