Disc Check Valve (Marine)
Specifications
Confirmed at quote- Size Range
- DN15 to DN200
- Pressure Class
- PN16, PN25, PN40
- End connection
- Wafer
- Operating temperature
- -196°C to 425°C, by material
Standards
- Design & manufacture
- ISO 5752
- Face to face
- DIN 3202/2-K4, DIN 3202/3-K4
- Flange & end dimension
- DIN 2501
Configure your variant(manually adjust box on the right if you require a different spec)
- Size
- Pressure
- End connection
Materials
All available material options per part. Click a pill to set it in the configurator.
- Body
- Disc
- Seat
- Spring
- Disc Guide
Temperature by material
The temperature limit follows the material grade, so the range above spans every grade offered rather than any one build. Confirmed at quotation.
- Bronze
- -20°C to 250°C
- Steel
- -29°C to 425°C
- AISI 316
- -196°C to 400°C (cryogenic service requires an extended bonnet and a type test)
Pressure-temperature rating
Maximum working pressure at each temperature, per pressure class.
| Class | Temperature | Max pressure |
|---|---|---|
| PN16 (Bronze) | 120°C | 16 bar |
| PN16 (Bronze) | 180°C | 15 bar |
| PN16 (Bronze) | 200°C | 14 bar |
| PN16 (Bronze) | 250°C | 13 bar |
| PN40 (Steel) | 120°C | 40 bar |
| PN40 (Steel) | 200°C | 35 bar |
| PN40 (Steel) | 300°C | 28 bar |
| PN40 (Steel) | 400°C | 21 bar |
| PN40 (AISI 316) | 120°C | 40 bar |
| PN40 (AISI 316) | 200°C | 34 bar |
| PN40 (AISI 316) | 300°C | 32 bar |
| PN40 (AISI 316) | 400°C | 29 bar |
Dimensions per size(12 sizes)
| Size | OD (mm) | L (mm) | OA (mm) | OB (mm) | D (mm) | OC (mm) | Weight |
|---|---|---|---|---|---|---|---|
| DN15 | 40 | 16 | - | - | - | - | 0.1 kg |
| DN20 | 47 | 19 | - | - | - | - | 0.135 kg |
| DN25 | 56 | 22 | - | - | - | - | 0.2 kg |
| DN32 | 72 | 28 | - | - | - | - | 0.46 kg |
| DN40 | 82 | 32 | - | - | - | - | 0.63 kg |
| DN50 | 95 | 40 | - | - | - | - | 0.98 kg |
| DN65 | 115 | 46 | - | - | - | - | 1.35 kg |
| DN80 | 132 | 50 | - | - | - | - | 2.08 kg |
| DN100 | 152 | 60 | - | - | - | - | 3.04 kg |
| DN125 | - | - | 184 | 194 | 90 | - | 9 kg |
| DN150 | - | - | 209 | 221 | 106 | 227 | 14 kg |
| DN200 | - | - | 276 | 287 | 140 | - | 24 kg |
Features
- Spring-assisted disc for both horizontal and vertical installation
- Available with or without spring
- Wafer-type body for installation between flanges
- Low minimum opening pressure
- Multiple material configurations: bronze, carbon steel, stainless steel
Description
A wafer-type disc check valve available in pressure ratings PN16 to PN40, covering nominal diameters DN15 to DN200. The valve incorporates a spring-assisted disc mechanism and is suitable for both horizontal and vertical flow directions. Available in bronze, steel, and stainless steel material configurations.
Selection notes
This check valve is a disc and wafer type pattern, supplied for wafer installation.
Sizes run DN15 to DN200, in PN16, PN25, PN40.
The body is offered in Bronze, Steel and AISI 316, so the grade can be matched to the service rather than the other way round.
Seat and trim options are Bronze, Steel and AISI 316. The seat, not the body, usually sets the temperature and medium limit, so confirm it against the service before ordering.
It is catalogued for Industrial Process.
Working temperature is -196°C to 425°C, by material, and the pressure rating falls as temperature rises: read the pressure-temperature table below rather than the headline class.
Built to ISO 5752, DIN 3202/2-K4, DIN 3202/3-K4 and DIN 2501.
Available pressure classes
Pressure classes this product is rated to.
Used in
Related guides
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