Safety & protectionARD-SF-002
Threaded / union connectionFull-lift safety valve
Threaded / union
A full-lift safety valve range with a stainless steel body and hard-faced closure components.
- Size
- DN 10–40
- Body material
- CF8
- Connections
- Threaded / union
- Temperature
- −196 to +80°C
- Pressure
- PN40 (4.0 MPa nominal)
- Medium
- O2, N2, Ar, CO2, NG
Engineered for your application
A full-lift safety valve range with a stainless steel body and hard-faced closure components.
Sizes and pressure ratings depend on construction, materials and configuration. Confirm the selected pressure-temperature rating with the quotation.
Technical data
The specification, in detail.
| Parameter | Technical specification |
|---|---|
| Size range | DN 10–40 |
| Pressure ratings | PN40 (4.0 MPa nominal) |
| End connections | Threaded / union |
| Medium | O2, N2, Ar, CO2, NG |
| Temperature range | -196 to +80°C |
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: Bottom inlet and perpendicular side outlet with union/adapter fittings in the reference.
| Connection detail | Connection / selection requirement |
|---|---|
| Published connection | Threaded |
| Connection standard | Not specified on this product page. Confirm the mating standard with the offer. |
| Drawing designation M1 | 31×1.5, 30×1.5, 36×2, 48×2, 52×2 (size-dependent; see dimension table). |
| Drawing designation M2 | 24×1.5, 30×1.5, 42×2, 45×2, 52×2, 62×2 (size-dependent; see dimension table). |
| Thread selection | Confirm male/female, diameter, pitch and sealing method. Metric M and G references must not be substituted with NPT. |
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 | 06Cr19Ni10+CO112 |
| Spring | 1Cr18Ni9 |
| Top / closure element | 06Cr19Ni10+CO112 |
| Gasket | PTFE |
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.
- Threaded
Sizes and pressure ratings depend on construction, materials and configuration. Confirm the selected pressure-temperature rating with the quotation.
Nominal pressure is not a selected set pressure. Specify the set pressure, required relieving capacity, medium and applicable approval requirements.
“Top / closure element” follows the component designation in the reference material list.
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-002 · 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.
| DN | H | M1 | M2 | L1 | L2 | Weight (kg) |
|---|---|---|---|---|---|---|
| 10 | 138 | 31X1.5 | 24X1.5 | 48 | 35 | — |
| 15 | 168 | 30X1.5 | 30X1.5 | 56 | 45 | 1.05 |
| 20 | 180 | 36X2 | 42X2 | 55 | 48 | 1.405 |
| 25 | 180 | 36X2 | 42X2 | 55 | 48 | — |
| 25 | 181 | 36X2 | 45X2 | 59 | 47 | — |
| 32 | 211 | 48X2 | 52X2 | 76 | 63 | — |
| 40 | 214 | 52X2 | 62X2 | 75 | 68 | — |
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-002, or request the outline drawing for your selected configuration.
Product code ARD-SF-002 · Revision 2026-10-28. Illustrations show one configuration; approved order documentation defines the supplied assembly.
Explore the range
Another configuration?
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- Size range
- DN 10–40
- Pressure ratings
- PN40 (4.0 MPa nominal)
- Temperature
- −196 to +80°C
- Connections
- Threaded / union
- Medium
- O2, N2, Ar, CO2, NG
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- Pressure ratings
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- Temperature
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- Connections
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- Size range
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- Pressure ratings
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- Temperature
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- Connections
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- Medium
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