Cryogenic butterfly valve

Top-entry · Weld ends

A top-entry triple-eccentric butterfly range with welded connections and a CF8 body. the technical record lists DN50–900 with gearbox, electric and pneumatic operation options.

Size: DN 50–900
Body material: CF8
Connections: Weld ends · confirm preparation

Operation: Manual / actuated
PN range: PN 16–50
ASME range: Class 150–300*

PN and ASME ranges are separate rating options. Confirm design temperature.

Engineered for your application

A top-entry triple-eccentric butterfly range with welded connections and a CF8 body. the technical record lists DN50–900 with gearbox, electric and pneumatic operation options.

Sizes and pressure ratings depend on construction, materials and configuration. Confirm the selected pressure-temperature rating with the quotation.

Applications

LNG Industrial Gases

Technical data

The specification, in detail.

ARD-BF-004 technical data
Parameter	Technical specification
Size range	DN 50–900
Pressure ratings	PN16–50 / Class 150–300*
Connection	Weld
PN range	PN16-PN50
ASME class range	Class 150-Class 300
Design	Triple eccentric, Top-entry
Operation	double-acting pneumatic, electric actuator, gearbox, hand lever, spring-return pneumatic
Temperature	Confirm limits for the selected construction
Medium	LNG, LOX, LN2, LAr, CO2

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.

Weld ends · confirm preparation

Shown configuration: Cylindrical weld-end body, bolted top-entry access hatch, extended tower and black gearbox/handwheel. Exact weld preparation is not specified.

ARD-BF-004 end connection details
Connection detail	Connection / selection requirement
Published connection	Weld
Weld interface	the technical record only states Weld. Confirm butt/socket preparation, pipe diameters, wall thickness and welding standard; no BW or SW standard is inferred.

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.

ARD-BF-004 material schedule
Component	Material / option
Body	CF8
Disc	CF8

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.

Catalogue body: CF8
Published connections: Weld

ARD-BF-004 engineering requirements
Engineering data	Configuration requirement
Dimension data	Order-specific dimensions required; no matched dimension table is published for this configuration.
Installation drawing	Confirm pipe outside diameter, wall thickness, weld preparation, overall height and service clearance; the technical record does not identify a socket or butt-weld standard.
Pressure-temperature rating	Obtain the allowable-pressure table or curve versus temperature for the selected body, seat and seals, including minimum and maximum design temperature. Nominal rating and a family temperature range do not define this curve.

Sizes and pressure ratings depend on construction, materials and configuration. Confirm the selected pressure-temperature rating with the quotation.

the technical record categorises this range for cryogenic service but does not publish a numeric temperature limit for this construction. Confirm the minimum design temperature and trim before selection.

*PN and ASME Class ranges are separate ranges. They are not conversions or a complete size-by-rating availability matrix.

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-004 · Revision 2026-10-28. Product illustrations show one configuration; the approved order documentation defines the supplied assembly.

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Dimensions

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 dimensions

Documentation

Product documents

Download the Arden data sheet for ARD-BF-004, or request the outline drawing for your selected configuration.

Product data sheet Request dimensional drawing

Product code ARD-BF-004 · Revision 2026-10-28. Illustrations show one configuration; approved order documentation defines the supplied assembly.

Cryogenic butterfly valve