Butterfly valvesARD-BF-008
Butt weld (BW) connectionPneumatic frontal top-entry cryogenic butterfly valve
Butt weld (BW)
A frontal top-entry cryogenic butterfly configuration for welded pipework, combining access for the service plan with a separately sized pneumatic operating package.
Size and pressure options require technical confirmation.
- Size
- NPS 6-48
- Body material
- Cryogenic stainless steel; selected grade to confirm
- Connections
- Butt weld (BW)
- Operation
- Pneumatic quarter-turn actuator
- Pressure
- ASME Class 150-600
- Temperature
- Down to -196°C; upper limit to confirm
Engineered for your application
A frontal top-entry cryogenic butterfly configuration for welded pipework, combining access for the service plan with a separately sized pneumatic operating package.
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 familyTechnical data
The specification, in detail.
| Parameter | Technical specification |
|---|---|
| Size range | NPS 6-48 |
| Pressure ratings | ASME Class 150-600 |
| Temperature range | Down to -196°C; upper limit to confirm |
| Construction | Frontal top-entry butterfly body |
| Operation | Pneumatic quarter-turn 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 butt-weld ends, a removable service cover and a pneumatic drive above the cryogenic extension
| Connection detail | Connection / selection requirement |
|---|---|
| Connection options | 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.
- Frontal maintenance-entry architecture
- Butt-weld process connections
- Pneumatic remote isolation
| Engineering data | Configuration requirement |
|---|---|
| Air and controls | Specify supply pressure, air quality, control signal, solenoid and position indication. |
| Actuator sizing | Confirm breakaway and running load at maximum differential pressure, closing time and required fail action. |
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.
Air-operated does not establish spring return, fail-close action or a SIL-rated shutdown assembly.
Confirm cover-removal clearance, disc extraction route, weld procedure and the approved outline drawing.
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-BF-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-BF-008, or request the outline drawing for your selected configuration.
Product code ARD-BF-008 · Revision 2026-10-29. Illustrations show one configuration; approved order documentation defines the supplied assembly.
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- Size range
- NPS 4-64
- Pressure ratings
- ASME Class 150-1500
- Temperature
- Down to -196°C; upper limit to confirm
- Connections
- Butt weld (BW)
- Medium
- LNG / LPG; exact process medium to specify
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- Size range
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- Pressure ratings
- ASME Class 150–900
- Temperature
- Down to −196°C
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Butterfly valvesARD-BF-002
Cryogenic butterfly valve · gear operated
- Size range
- DN 50-900 / NPS 2-36
- Pressure ratings
- PN16-PN50 / ASME Class 150-300
- Temperature
- Confirm design temperature
- Connections
- Weld ends · confirm specification