Cold-line isolation
Globe, ball and butterfly selections, including pneumatic shut-off arrangements.
Liquid Hydrogen
Valves for liquid hydrogen.
Liquid-hydrogen service needs its own valve selection. Start with dedicated LH2 constructions and define the complete cold-service assembly.
20 product references · Specifications & datasheets
The application
A dedicated selection for LH2.
At temperatures around −253°C, hydrogen service places specific demands on materials, seals and thermal design. The range includes extended-stem and vacuum-jacketed configurations, alongside pressure-reducing, non-return, filtration and relief functions. Each selection follows the actual fluid state and pressure–temperature conditions.
Insulated pipework
Vacuum-jacketed globe and lift-check configurations for the selected cold-line interface.
Pressure & cleanliness
Pressure-reducing, filter and safety-valve selections matched to the process duty.
Selection essentials
What defines the right configuration?
- Temperature
- Minimum design temperature, cool-down sequence and warm operating conditions.
- Sealing
- Wetted materials, leakage criteria and seal qualification.
- Integration
- Insulation interface, pipe ends, orientation and maintenance access.
- Control & relief
- Flow cases, fail action, relief setting and discharge capacity.
Products for this application
Browse dedicated LH2 products.
Only products with liquid hydrogen explicitly stated in their medium data appear here. Published limits and available size/rating combinations vary by configuration.
Active filters
Control valves
ARD-CV-006
LH2 bellows-sealed angle control valve
An angle-pattern LH2 control assembly with bellows stem sealing, an extended cold section and a pneumatic diaphragm actuator with an electro-pneumatic positioner. Trim and actuator are selected from the required flow and pressure cases.
Enquiry range — technical confirmation required
- Size range
- DN 2-125; DN 150-300 on request
- Pressure
- PN10 / PN25 / PN40 - size dependent
- Temperature
- LH2 selection at -253°C; upper limit +50°C
- Connections
- Butt weld (BW)
- Medium
- LH2 / liquid hydrogen
Control valves
ARD-CV-007
LH2 cold-box bellows control valve
A pneumatic bellows-sealed control valve for LH2 cold boxes and vacuum-insulated lines. The extended cold section separates the process body from the warm diaphragm actuator and positioner.
Enquiry range — technical confirmation required
- Size range
- DN 2-250 - rating dependent
- Pressure
- PN6 / PN25 / PN40 - size dependent
- Temperature
- LH2 selection at -253°C; upper limit +100°C
- Connections
- Butt weld (BW)
- Medium
- LH2 / liquid hydrogen
Emergency shut-off
ARD-ES-006
LH2 thermal-barrier pneumatic shut-off valve
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.
Enquiry range — technical confirmation required
- Size range
- DN 15-250 / NPS 1/2-10 - series scope
- Pressure
- ASME Class 150-300
- Temperature
- -253 to +80°C - LH2 selection
- Connections
- Butt weld (BW)
- Medium
- LH2 / liquid hydrogen
Globe valves
ARD-GL-015
LH2 modular inline globe valve
A compact inline globe configuration with a replaceable valve insert, bellows stem seal and vacuum-jacket attachment flange. The manual upper assembly supports local isolation in space-constrained LH2 equipment.
Enquiry range — technical confirmation required
- Size range
- DN 15 / DN 25 / DN 50
- Pressure
- PN10 / PN18 / PN25 - size dependent
- Temperature
- LH2 cold-service version at -253°C; upper limit +50°C
- Connections
- Butt weld (BW)
- Medium
- LH2 / liquid hydrogen
Check valves
ARD-CK-012
LH2 compact inline cold check valve
A compact inline non-return valve for direct installation in LH2 cold boxes and cryogenic pipelines. The enclosed weld-end body has no external actuator and is selected for the required low opening pressure.
Enquiry range — technical confirmation required
- Size range
- DN 6-200 - rating dependent
- Pressure
- PN25 / PN40 - size dependent
- Temperature
- LH2 selection at -253°C; upper limit +50°C
- Connections
- Butt weld (BW)
- Medium
- LH2 / liquid hydrogen
Globe valves
ARD-GL-017
LH2 thermal-barrier globe valve
An extended-bonnet LH2 globe valve combining bellows and gland packing with a thermal-barrier arrangement. Manual operation is illustrated; insulation and maintenance access are defined around the selected installation.
Enquiry range — technical confirmation required
- Size range
- DN 15-250 / NPS 1/2-10 - series scope
- Pressure
- ASME Class 150-300
- Temperature
- -253 to +80°C - LH2 selection
- Connections
- Butt weld (BW)
- Medium
- LH2 / liquid hydrogen
Globe valves
ARD-GL-010
Liquid-hydrogen globe valve
A manually operated globe-valve reference designed for liquid-hydrogen service down to -253°C. The 316L construction uses an extended upper assembly and a specified polymer sealing system.
Enquiry range — technical confirmation required
- Size range
- DN 15-100 · project range
- Pressure
- PN40 (4.0 MPa nominal)
- Temperature
- -253 to +80°C
- Connections
- Threaded / weld ends
- Medium
- LH2 / liquid hydrogen
Safety & protection
ARD-SF-008
Liquid-hydrogen safety valve
A 316L safety-valve reference for liquid-hydrogen pressure protection down to -253°C. Connection size, set pressure and certified relieving capacity are defined for the protected equipment.
Enquiry range — technical confirmation required
- Size range
- Connection size to specify
- Pressure
- PN40 nominal; set pressure to specify
- Temperature
- -253 to +80°C
- Connections
- Threaded / weld ends
- Medium
- LH2 / liquid hydrogen
Butterfly valves
ARD-BF-010
Manual liquid-hydrogen butterfly valve
A dedicated liquid-hydrogen disc-valve configuration with an extended stuffing box and replaceable sealing-ring arrangement. A manual gearbox is illustrated for local operation.
Enquiry range — technical confirmation required
- Size range
- NPS 1/2-6
- Pressure
- ASME Class 150-600
- Temperature
- -253 to +80°C
- Connections
- Wafer / lug / RF flanged / butt weld (BW)
- Medium
- LH2 / liquid hydrogen
Butterfly valves
ARD-BF-011
Pneumatic liquid-hydrogen butterfly valve
A dedicated liquid-hydrogen disc-valve configuration with an extended stuffing box and replaceable sealing-ring arrangement. A pneumatic quarter-turn drive is illustrated for remote isolation.
Enquiry range — technical confirmation required
- Size range
- NPS 1/2-6
- Pressure
- ASME Class 150-600
- Temperature
- -253 to +80°C
- Connections
- Wafer / lug / RF flanged / butt weld (BW)
- Medium
- LH2 / liquid hydrogen
Cryogenic strainers
ARD-ST-002
Vacuum-jacketed liquid-hydrogen filter
A vacuum-jacketed filter reference for liquid-hydrogen pipework, with an extended insulated body and a replaceable filtration element selected for the process cleanliness requirement.
Enquiry range — technical confirmation required
- Size range
- NPS 1/2-6
- Pressure
- ASME Class 150-600
- Temperature
- -253 to +80°C
- Connections
- Socket weld (SW) / butt weld (BW) / RF flanged
- Medium
- LH2 / liquid hydrogen
Emergency shut-off
ARD-ES-005
Vacuum-jacketed liquid-hydrogen pneumatic shut-off valve
A lifting-type liquid-hydrogen shut-off assembly combining pneumatic linear actuation, an extended bonnet, a vacuum-jacketed body and a selected bellows sealing arrangement.
Enquiry range — technical confirmation required
- Size range
- NPS 1/2-6
- Pressure
- ASME Class 150-600
- Temperature
- -253 to +80°C
- Connections
- Socket weld (SW) / butt weld (BW) / RF flanged
- Medium
- LH2 / liquid hydrogen
Vacuum-jacketed
ARD-VJ-004
Vacuum-jacketed liquid-hydrogen lift check valve
A dedicated liquid-hydrogen non-return assembly with an insulated body and a guided, spring-return lift closure. The passive valve is selected with the flow regime and installation orientation.
Enquiry range — technical confirmation required
- Size range
- NPS 1/2-6 / DN 15-150
- Pressure
- ASME Class 150-600
- Temperature
- -253 to +120°C
- Connections
- Socket weld (SW) / butt weld (BW) / RF flanged
- Medium
- LH2 / liquid hydrogen
Ball valves
ARD-BV-020
Liquid-hydrogen ball valve
A liquid-hydrogen ball-valve enquiry reference for specialized isolation duty. The illustrated extended-stem quarter-turn arrangement is developed around a selected hydrogen-compatible material, seat and pressure-relief design.
Enquiry range — technical confirmation required
- Size range
- Nominal size to specify
- Pressure
- Pressure rating to specify
- Temperature
- LH2 service down to -253°C; selected limits to confirm
- Connections
- End connections to specify
- Medium
- LH2 / liquid hydrogen
Pressure regulators
ARD-RG-003
Liquid-hydrogen pressure-reducing valve
A liquid-hydrogen pressure-reducing enquiry reference for a defined upstream and downstream pressure duty. Regulating architecture, sensing arrangement and insulation are selected from the actual process cases.
Enquiry range — technical confirmation required
- Size range
- Nominal size to specify
- Pressure
- Inlet / outlet pressure to specify
- Temperature
- LH2 service down to -253°C; selected limits to confirm
- Connections
- End connections to specify
- Medium
- LH2 / liquid hydrogen
Vacuum-jacketed
ARD-VJ-005
Vacuum-insulated liquid-hydrogen globe valve
A manual liquid-hydrogen globe reference with a metallic vacuum-insulation jacket and full-penetration welded construction. The extended upper assembly combines a selected bellows and spring-energized sealing system.
Enquiry range — technical confirmation required
- Size range
- DN 8-100
- Pressure
- PN50 (5.0 MPa nominal)
- Temperature
- -253 to +150°C
- Connections
- Weld ends - preparation to specify
- Medium
- LH2 / liquid hydrogen
Globe valves
ARD-GL-014
LH2 bellows-sealed angle globe valve
A manual angle-pattern globe valve for liquid-hydrogen cold lines, with a stainless-steel bellows stem seal, monitoring port and extended bonnet prepared for vacuum-jacket integration.
Enquiry range — technical confirmation required
- Size range
- DN 2-125; DN 150-300 on request
- Pressure
- PN10 / PN25 / PN40 - size dependent
- Temperature
- LH2 selection at -253°C; upper limit +50°C
- Connections
- Butt weld (BW)
- Medium
- LH2 / liquid hydrogen
Check valves
ARD-CK-011
LH2 extended-bonnet spring check valve
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.
Enquiry range — technical confirmation required
- Size range
- DN 10-100
- Pressure
- PN40
- Temperature
- LH2 cold-service version at -253°C; upper limit +50°C
- Connections
- Butt weld (BW)
- Medium
- LH2 / liquid hydrogen
Globe valves
ARD-GL-016
LH2 cold-box bellows shut-off valve
A manual cold-box shut-off valve with a long cryogenic extension and metallic bellows sealing. Weld-in vacuum interfaces and optional thermal intercepts are selected to match the insulated pipework and heat-load budget.
Enquiry range — technical confirmation required
- Size range
- DN 2-250 - rating dependent
- Pressure
- PN6 / PN25 / PN40 - size dependent
- Temperature
- LH2 selection at -253°C; upper limit +100°C
- Connections
- Butt weld (BW)
- Medium
- LH2 / liquid hydrogen
Check valves
ARD-CK-013
LH2 thermal-barrier lift check valve
A lift-type LH2 non-return valve with an extended service tower and thermal-barrier construction. Jacketed and non-jacketed selections support cold-box or insulated-line integration.
Enquiry range — technical confirmation required
- Size range
- DN 15-250 / NPS 1/2-10 - series scope
- Pressure
- ASME Class 150-300
- Temperature
- -253 to +80°C - LH2 selection
- Connections
- Butt weld (BW)
- Medium
- LH2 / liquid hydrogen
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Product ranges are offered as references for enquiry. Final size, materials, pressure–temperature limits and certification are confirmed for each selected assembly.
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Liquid Hydrogen
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