Emergency shut-offARD-ES-006
Butt weld (BW) connectionLH2 thermal-barrier pneumatic shut-off valve
Butt weld (BW)
A pneumatic LH2 shut-off globe assembly with an extended thermal-barrier bonnet. The cold pressure body and warm operating package are selected together for the required isolation sequence.
Size and pressure options require technical confirmation.
- Size
- DN 15-250 / NPS 1/2-10 - series scope
- Body material
- 304L / 316L stainless steel
- Connections
- Butt weld (BW)
- Operation
- Pneumatic diaphragm
- Pressure
- ASME Class 150-300
- Temperature
- -253 to +80°C - LH2 selection
Engineered for your application
A pneumatic LH2 shut-off globe assembly with an extended thermal-barrier bonnet. The cold pressure body and warm operating package are selected together for the required isolation sequence.
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.
Explore the related valve familyTechnical data
The specification, in detail.
| Parameter | Technical specification |
|---|---|
| Size range | DN 15-250 / NPS 1/2-10 - series scope |
| Pressure ratings | ASME Class 150-300 |
| Construction | Pneumatic shut-off globe; thermal barrier; extended bellows/packing seal |
| Operation | Pneumatic diaphragm |
| Medium | LH2 / liquid hydrogen |
| Insulation options | Vacuum jacket with multi-layer insulation or non-jacketed arrangement |
| Operating package | Fail position, air pressure, solenoid, feedback and trip interface to specify |
| End standard | Butt weld to ASME B16.25 |
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: an inline globe body with two butt-weld stubs, long cold bonnet, pneumatic diaphragm actuator and side-mounted instrument assembly
| Connection detail | Connection / selection requirement |
|---|---|
| Process ends | Butt weld to ASME B16.25; confirm the selected pipe schedule. |
| 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 | 304L / 316L stainless steel |
| 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.
- Pneumatic remote isolation
- Extended thermal-barrier bonnet
- Cold-box maintenance planning
| 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.
The size range is the combined LH2 family scope; confirm the emergency shut-off model matrix. A specified fail action, closing time or SIL status requires qualification of the complete assembly.
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-ES-006 · 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-ES-006, or request the outline drawing for your selected configuration.
Product code ARD-ES-006 · Revision 2026-10-29. Illustrations show one configuration; approved order documentation defines the supplied assembly.
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Emergency shut-offARD-ES-001
Pneumatic emergency shut-off valve
- 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
Emergency shut-offARD-ES-002
Cryogenic emergency shut-off valve · PN16 · BW
- Size range
- DN 65–100
- Pressure ratings
- PN16
- Temperature
- −196 to +80°C · series*
- Connections
- Butt weld (BW)
- Medium
- LNG, LOX, LN2, LAr
Emergency shut-offARD-ES-003
Cryogenic emergency shut-off valve · PN16/40 · SW
- Size range
- DN 10–50
- Pressure ratings
- PN16 · PN40
- Temperature
- −196 to +80°C · series*
- Connections
- Socket weld (SW)
- Medium
- LNG, LOX, LN2, LAr, CO2