Safety & protectionARD-SF-005
Connection optionsCryogenic safety valve
PN320 · Male BSP/NPT
A DN15 PN320 safety-valve range with three published set-pressure bands. The catalogue coefficient is 0.66; certified capacity and the final relief sizing remain order-specific.
Size and pressure options require technical confirmation.
- Size
- DN 10-25
- Body material
- CF8
- Connections
- Male BSP / NPT threaded
- Operation
- Spring-loaded pressure relief
- Pressure
- PN320
- Temperature
- −196 to +80°C · series*
Engineered for your application
A DN15 PN320 safety-valve range with three published set-pressure bands. The catalogue coefficient is 0.66; certified capacity and the final relief sizing remain order-specific.
These size and pressure ranges are subject to technical confirmation. They are not verified availability or approved operating limits. Exact size, rating, materials and design temperature require written confirmation.
Technical data
The specification, in detail.
| Parameter | Technical specification |
|---|---|
| Size range | DN 10-25 |
| Pressure ratings | PN320 |
| Connection | Male threaded, BSP / NPT |
| Operation | Spring-loaded pressure relief |
| series temperature* | -196°C to +80°C |
| Set-pressure bands | 5-10.9 / 11-19.9 / 20-28 MPa |
| Catalogue coefficient | 0.66 |
| 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.
Shown configuration: Compact block body, male side and downward threaded ports, silver casing and tall brass-coloured cap.
| Connection detail | Connection / selection requirement |
|---|---|
| Published connection | BSP · NPT · Male |
| 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 | PN320 DN15 reference arrangement with M36x2 / M39x2 metric connections. Reference body/trim are S30408 / S32168. Catalogue CF8 / HPb59-1 and BSP/NPT variants need their own drawings. Setting bands are not certified discharge capacity. |
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 | CF8 |
| Seat | HPb59-1 |
| Disc | HPb59-1 |
Supplied reference arrangement
Materials apply to the supplied reference arrangement. PN320 DN15 reference arrangement with M36x2 / M39x2 metric connections. Reference body/trim are S30408 / S32168. Catalogue CF8 / HPb59-1 and BSP/NPT variants need their own drawings. Setting bands are not certified discharge capacity.
| Component | Reference arrangement material |
|---|---|
| Cover | HPb59-1 |
| Spring | S30210 |
| Body | S30408 |
| Adjusting Screw | HPb59-1 |
| Spring Seat | S30408 |
| Sealing | T2 |
| Gasket | PTFE |
| Disc | S32168 |
| Valve Seat | S32168 |
| Ejector Bar | S42020 |
| Adjusting Ring | HPb59-1 |
| Bonnet | 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 · Male
| Engineering data | Configuration requirement |
|---|---|
| Dimension data | Reference table and drawing: DN15. 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 | Confirm allowable inlet pressure at the relieving temperature for the selected body, trim and seals. Specify set pressure, back pressure and certified relief capacity separately. |
These size and pressure ranges are subject to technical confirmation. They are not verified availability or approved operating limits. Exact size, rating, materials and design temperature require written confirmation.
*−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.
Specify required set pressure, relieving medium and temperature, back pressure and certified capacity. Spring-setting bands, nominal pressure and flange rating are separate values. No capacity or approval is inferred from the product illustration.
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.
Available dimensional data: DN 15; PN320. Other sizes and ratings require technical confirmation.
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-SF-005 · Revision 2026-10-28. Product illustrations show one configuration; the approved order documentation defines the supplied assembly.
Download PDFDimensions
Plan the connection.
Dimensions apply to the tabulated version only. Confirm the approved outline drawing for the selected size, rating and connections before installation.
PN320 DN15 reference arrangement with M36x2 / M39x2 metric connections. Reference body/trim are S30408 / S32168. Catalogue CF8 / HPb59-1 and BSP/NPT variants need their own drawings. Setting bands are not certified discharge capacity.
Dimensions and connection reference
| DN | H | H1 | D0 | W | M1 | M2 | Set pressure (MPa) |
|---|---|---|---|---|---|---|---|
| 15 | 269 | 72.5 | Ø8 | 57.5 | M36x2 | M39x2 | 11 - 19.9 |
| 15 | 269 | 72.5 | Ø8 | 57.5 | M36x2 | M39x2 | 20 - 28 |
| 15 | 269 | 72.5 | Ø8 | 57.5 | M36x2 | M39x2 | 5 - 10.9 |
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-SF-005, or request the outline drawing for your selected configuration.
Product code ARD-SF-005 · Revision 2026-10-28. Illustrations show one configuration; approved order documentation defines the supplied assembly.
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