Check valvesARD-CK-008
Connection optionsCryogenic axial-flow check valve
RF / RTJ flanged / butt weld (BW)
A spring-assisted axial-flow non-return configuration for large cryogenic lines. The guided closure moves along the flow axis, with a streamlined inline body and no external operator.
Size and pressure options require technical confirmation.
- Size
- NPS 2-42
- Body material
- Cryogenic stainless steel; selected grade to confirm
- Connections
- RF / RTJ flanged / butt weld (BW)
- Operation
- Automatic non-return
- Pressure
- ASME Class 150-900
- Temperature
- -196 to +150°C
Engineered for your application
A spring-assisted axial-flow non-return configuration for large cryogenic lines. The guided closure moves along the flow axis, with a streamlined inline body and no external operator.
Series limits guide enquiry and are not verified availability or approved operating limits for every size, pressure and operator combination. Confirm the selected design and pressure-temperature rating.
Technical data
The specification, in detail.
| Parameter | Technical specification |
|---|---|
| Size range | NPS 2-42 |
| Pressure ratings | ASME Class 150-900 |
| Temperature range | -196 to +150°C |
| Construction | Axial guided closure |
| Operation | Automatic non-return |
| Medium | LNG / LPG; exact process medium to specify |
Nominal pressure and ASME class are different rating systems. Confirm the pressure–temperature rating for the selected material and design.
End connections
Define the interface.
Shown configuration: two RF flanged line connections
| Connection detail | Connection / selection requirement |
|---|---|
| Connection options | RF / RTJ flanged / butt weld (BW) |
| Mating interface | Confirm end standard, facing or weld preparation, pipe dimensions and installation envelope. |
The illustration shows one configuration. Published connection alternatives are options for enquiry; their availability depends on size, rating, material and design. Installation dimensions come from the drawing, not the illustration.
Materials
From body to seal.
| Component | Material / option |
|---|---|
| Body and bonnet | Cryogenic stainless steel; selected grade to confirm |
| Trim, seats and seals | Selected material schedule to confirm |
Published material alternatives are configuration-dependent. H.F. denotes hard facing; the exact grade and material certificates are confirmed with the offer.
Selection notes
Defined around your application.
- Axial disc movement
- Streamlined inline pressure body
- Spring-assisted return selected for the duty
| Engineering data | Configuration requirement |
|---|---|
| Transient duty | Provide flow range, fluid state, pump rundown and permissible reverse-flow conditions. |
| Installation | Confirm orientation, cracking pressure, pressure loss and the approved outline. |
Series limits guide enquiry and are not verified availability or approved operating limits for every size, pressure and operator combination. Confirm the selected design and pressure-temperature rating.
Closing response and pressure-surge performance require a system assessment; no guaranteed non-slam behaviour or pressure-loss value is inferred from the image.
Published ratings do not establish suitability for every listed medium. Oxygen cleaning, material compatibility, trapped-liquid relief and project approvals are specified for the selected assembly. Liquid-hydrogen and helium service require a separate temperature and material review.
Arden product datasheet
Product code ARD-CK-008 · Revision 2026-10-29. Product illustrations show one configuration; the approved order documentation defines the supplied assembly.
Download PDFDimensions
Plan the connection.
Need installation dimensions?
No numeric dimension table is published for this reference. Request a configuration-specific outline drawing with your enquiry.
Request dimensionsDocumentation
Product documents
Download the Arden data sheet for ARD-CK-008, or request the outline drawing for your selected configuration.
Product code ARD-CK-008 · Revision 2026-10-29. Illustrations show one configuration; approved order documentation defines the supplied assembly.
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- Pressure ratings
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- Temperature
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- Pressure ratings
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- Temperature
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