Check valvesARD-CK-011
Butt weld (BW) connectionLH2 extended-bonnet spring check valve
Butt weld (BW)
A self-acting spring-loaded non-return valve with an extended service bonnet for insulated LH2 pipework. The straight-through pressure body and removable upper closure support maintenance planning.
Size and pressure options require technical confirmation.
- Size
- DN 10-100
- Body material
- Stainless steel; selected grade to confirm
- Connections
- Butt weld (BW)
- Operation
- Automatic / spring-loaded
- Pressure
- PN40
- Temperature
- LH2 cold-service version at -253°C; upper limit +50°C
Engineered for your application
A self-acting spring-loaded non-return valve with an extended service bonnet for insulated LH2 pipework. The straight-through pressure body and removable upper closure support maintenance planning.
Series data guide enquiry and are not verified availability or approved operating limits for every size, pressure and execution. Confirm the selected LH2 configuration and pressure-temperature rating.
Applications
Liquid HydrogenTechnical data
The specification, in detail.
| Parameter | Technical specification |
|---|---|
| Size range | DN 10-100 |
| Pressure ratings | PN40 |
| Construction | Inline spring-loaded check with extended service bonnet |
| Operation | Automatic / spring-loaded |
| Medium | LH2 / liquid hydrogen |
| Opening pressure | Published minimum opening pressure up to 0.3 bar; selected spring and flow response to confirm |
| Installation | Horizontal flow, service bonnet upwards |
| Vacuum interface | Optional weld-in flange |
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 opposing butt-weld stubs, a straight pressure body and an extended upright service bonnet with bolted cap; no external operator
| Connection detail | Connection / selection requirement |
|---|---|
| Process ends | Specify pipe OD, wall thickness, material and weld preparation. |
| Insulation interface | Define the jacket, vacuum boundary and extension length separately from the process connection. |
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 | Stainless steel; selected grade to confirm |
| Trim / seats | Selected cryogenic metal and polymer trim; confirm grades for LH2 |
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.
- Self-acting non-return function
- Extended maintenance bonnet
- Optional vacuum-jacket interface
| Engineering data | Configuration requirement |
|---|---|
| Process duty | Specify LH2 phase, design temperature, pressure, flow and differential pressure. |
| Selected assembly | Confirm insulation interface, materials, leakage acceptance and project test documentation. |
Series data guide enquiry and are not verified availability or approved operating limits for every size, pressure and execution. Confirm the selected LH2 configuration and pressure-temperature rating.
Specify the deeper cryogenic construction and seals for LH2. Confirm spring setting, pressure drop and reverse-flow closure against the actual operating cases.
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-011 · 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-011, or request the outline drawing for your selected configuration.
Product code ARD-CK-011 · Revision 2026-10-29. Illustrations show one configuration; approved order documentation defines the supplied assembly.
Explore the range
Another configuration?
Check valvesARD-CK-001
Cryogenic lift check · union cap
- Size range
- DN 10–40
- Pressure ratings
- PN40 (4.0 MPa nominal)
- Temperature
- −196 to +60°C
- Connections
- Socket weld (SW)
- Medium
- LO2, LN2, LAr, LCO2
Check valvesARD-CK-002
Cryogenic lift check · bolted cap
- Size range
- DN 10–200
- Pressure ratings
- PN40 (4.0 MPa nominal)
- Temperature
- −196 to +60°C
- Connections
- Socket weld (SW)
- Medium
- LO2, LN2, LAr, LCO2, LNG
Check valvesARD-CK-003
Forged cryogenic check valve
- Size range
- ½–2 in
- Pressure ratings
- ASME Class 150–1500
- Temperature
- Down to −196°C
- Connections
- Socket weld (SW) · Flanged