Cryogenic swing check valve · PN40 · BSP/NPT — reference-based product illustration, BSP / NPT threaded — Reference-based product illustration. The shown size and connections are one catalogue configuration.

Reference-based product illustration. The shown size and connections are one catalogue configuration.

Check valvesARD-CK-006

Connection options

Cryogenic swing check valve

PN40 · BSP/NPT

A compact CF8 swing check valve for threaded cryogenic pipework. BSP and NPT are separate connection options across the 3/8–2-inch catalogue range.

Size: ⅜–2 in
Body material: CF8
Connections: BSP / NPT threaded

Operation: Automatic non-return
Pressure: PN40
Temperature: −196 to +80°C · series*

Configuration and operating limits are confirmed for your project.

Engineered for your application

A compact CF8 swing check valve for threaded cryogenic pipework. BSP and NPT are separate connection options across the 3/8–2-inch catalogue range.

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-CK-006 technical data
Parameter	Technical specification
Size range	⅜–2 in
Pressure ratings	PN40
Connection	BSP / NPT
Operation	Automatic non-return
series temperature*	-196°C to +80°C
Medium	LNG, LOX, LN2, LAr

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.

BSP threadedNPT threaded

Shown configuration: Female threaded inline ports, inclined service-cap neck and small side pivot plug.

ARD-CK-006 end connection details
Connection detail	Connection / selection requirement
Published connection	BSP · NPT
Thread standard	BSP and NPT are separate options. Confirm exact designation, taper/parallel form and male/female inlet and outlet; metric reference threads must not be relabelled as BSP or NPT.
Reference drawing scope	PN40 threaded reference arrangement, DN10, DN15, DN25, DN40 and DN50. DN20 and DN32 dimensions are not supplied. the technical record 2-M column is reproduced as a drawing value; it does not identify the BSP/NPT thread designation.

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-CK-006 material schedule
Component	Material / option
Body	CF8
Disc	S30408

Supplied reference arrangement

Materials apply to the supplied reference arrangement. PN40 threaded reference arrangement, DN10, DN15, DN25, DN40 and DN50. DN20 and DN32 dimensions are not supplied. the technical record 2-M column is reproduced as a drawing value; it does not identify the BSP/NPT thread designation.

ARD-CK-006 reference arrangement materials
Component	Reference arrangement material
Bonnet	CF8
Body	CF8
Disc	HPb59-1
Gasket	T2
Gasket	PTFE
Nut	HPb59-1
Rolling Bar	HPb59-1
Round Pin	S30408

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: BSP · NPT

ARD-CK-006 engineering requirements
Engineering data	Configuration requirement
Dimension data	Reference table and drawing: DN10, DN15, DN25, DN40, DN50. Dimensions and connection reference.
Installation drawing	Confirm BSP or NPT, male/female ends, thread sizes, engagement, end-to-end length and installation clearance.
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.

*−196 to +80°C is the series/reference range. It does not establish the allowable pressure at each temperature or suitability of every seat, seal and actuator. Confirm the selected assembly’s minimum design temperature and pressure–temperature curve.

Catalogue construction and supplied reference-arrangement materials are shown separately below the material schedule. Use the approved drawing for the quoted body, trim and connections.

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-CK-006 · Revision 2026-10-28. Product illustrations show one configuration; the approved order documentation defines the supplied assembly.

Download PDF

Dimensions

Plan the connection.

Dimensions apply to the tabulated version only. Confirm the approved outline drawing for the selected size, rating and connections before installation.

PN40 threaded reference arrangement, DN10, DN15, DN25, DN40 and DN50. DN20 and DN32 dimensions are not supplied. the technical record 2-M column is reproduced as a drawing value; it does not identify the BSP/NPT thread designation.

Dimensions and connection reference

ARD-CK-006 dimensions
DN	Size (inch)	L	H	2-M	D0	Weight (kg)
10	3/8	54	34.5	17	Ø10	0.50
15	1/2	67	39	21	Ø15	0.60
25	1	95	55	32	Ø25	0.65
40	1 1/2	137	69	47	Ø40	0.75
50	2	147	85	58	Ø50	1.00

Linear dimensions are in mm and weights in kg unless stated otherwise. Pressure bands in MPa, thread designations and ISO mounting codes are not linear dimensions. Thread designations follow the reference. An em dash means no value is published. Confirm a certified outline drawing for the selected configuration.

Documentation

Product documents

Download the Arden data sheet for ARD-CK-006, or request the outline drawing for your selected configuration.

Product data sheet Dimensions & installation data

Product code ARD-CK-006 · Revision 2026-10-28. Illustrations show one configuration; approved order documentation defines the supplied assembly.

Cryogenic swing check valve