Control valvesARD-CV-003
Connection optionsPneumatic diaphragm cryogenic control valve
RF / RTJ flanged / butt weld (BW)
A guided S-pattern globe control assembly with an extended packing box and pneumatic diaphragm linear actuation. Select the trim and drive from the process flow cases rather than nominal line size alone.
Size and pressure options require technical confirmation.
- Size
- DN 20-300 / NPS 3/4-12
- Body material
- Cryogenic stainless steel; selected grade to confirm
- Connections
- RF / RTJ flanged / butt weld (BW)
- Operation
- Pneumatic diaphragm linear actuator
- Pressure
- ASME Class 150-2500
- Temperature
- Cryogenic design temperature to specify
Engineered for your application
A guided S-pattern globe control assembly with an extended packing box and pneumatic diaphragm linear actuation. Select the trim and drive from the process flow cases rather than nominal line size alone.
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.
Explore the related valve familyApplications
LNGTechnical data
The specification, in detail.
| Parameter | Technical specification |
|---|---|
| Size range | DN 20-300 / NPS 3/4-12 |
| Pressure ratings | ASME Class 150-2500 |
| Temperature range | Cryogenic design temperature to specify |
| Construction | S-pattern globe body; guided plug; extended packing box |
| Operation | Pneumatic diaphragm linear actuator |
| 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.
- Guided linear control plug
- Extended packing-box assembly
- Pneumatic diaphragm modulating package
| Engineering data | Configuration requirement |
|---|---|
| Process sizing | Provide minimum/normal/maximum flow, inlet and outlet pressure, temperature and fluid state. |
| Control interface | Specify control signal, position feedback, fail action, shut-off class and available utility. |
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.
The selected trim requires a confirmed design-temperature range; ordinary cryogenic duty does not establish liquid-hydrogen suitability.
Cv/Kv, characteristic, rangeability, cavitation/flashing behaviour and actuator thrust are calculated for the selected duty.
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-CV-003 · 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-CV-003, or request the outline drawing for your selected configuration.
Product code ARD-CV-003 · Revision 2026-10-29. Illustrations show one configuration; approved order documentation defines the supplied assembly.
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- Size range
- DN 20-300 / NPS 3/4-12
- Pressure ratings
- ASME Class 150-2500
- Temperature
- Cryogenic design temperature to specify
- Connections
- RF / RTJ flanged / butt weld (BW)
- Medium
- LNG / LPG; exact process medium to specify
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- Size range
- DN 20-300 / NPS 3/4-12
- Pressure ratings
- ASME Class 150-2500
- Temperature
- Cryogenic design temperature to specify
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Pneumatic diaphragm control valve
- Size range
- DN 25–80
- Pressure ratings
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- Temperature
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- Connections
- Socket weld (SW)
- Medium
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