Pressure regulatorsARD-RG-002
Socket weld (SW) connectionSelf-operated pressure-reducing valve
Socket weld (SW)
A spring-operated regulator for pressure reduction, with socket-weld ends and stainless steel wetted components.
- Size
- DN 25–150
- Body material
- CF8
- Connections
- Socket weld (SW)
- Temperature
- −196 to +60°C
- Pressure
- PN40 (4.0 MPa nominal)
- Medium
- O2, N2, Ar, CO2, NG
Engineered for your application
A spring-operated regulator for pressure reduction, with socket-weld ends and stainless steel wetted 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 25–150 |
| Pressure ratings | PN40 (4.0 MPa nominal) |
| End connections | Socket weld (SW) |
| Medium | O2, N2, Ar, CO2, NG |
| Temperature range | -196 to +60°C |
| Flow direction | Low to high |
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 weld-end body below the exposed spring mechanism.
| Connection detail | Connection / selection requirement |
|---|---|
| Published connection | Socket weld |
| Connection standard | Not specified on this product page. Confirm the mating standard with the offer. |
| Weld selection | Specify pipe OD, wall thickness/schedule, material and weld preparation. SW and BW are different connections. |
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 |
| Bonnet | 06Cr19Ni10 |
| Stem | 06Cr19Ni10 |
| Top / closure element | 06Cr19Ni10+PTFE |
| Gasket | PTFE |
| Cylinder | Aluminum alloy |
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.
- Socket weld
- Flow direction: Low to high
Sizes and pressure ratings depend on construction, materials and configuration. Confirm the selected pressure-temperature rating with the quotation.
“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-RG-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 | L | DI | B | Weight (kg) |
|---|---|---|---|---|---|
| 25 | 412 | 80 | 32.5 | 6 | 3.83 |
| 32 | 437 | 100 | 38.5 | 8 | 5.42 |
| 40 | 437 | 100 | 45.5 | 8 | — |
| 50 | 492 | 130 | 57.5 | 8 | — |
| 65 | 562 | 150 | 76.5 | 10 | — |
| 80 | 584 | 180 | 90 | 15 | — |
| 100 | 630 | 200 | 109 | 15 | — |
| 125 | 670 | 280 | 134 | 15 | — |
| 150 | 687 | 350 | 160 | 30 | — |
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-RG-002, or request the outline drawing for your selected configuration.
Product code ARD-RG-002 · Revision 2026-10-28. Illustrations show one configuration; approved order documentation defines the supplied assembly.
Explore the range
Another configuration?
Pressure regulatorsARD-RG-001
Cryogenic pressure-building valve
- Size range
- DN 20–50
- Pressure ratings
- PN40 (4.0 MPa nominal)
- Temperature
- −196 to +60°C
- Connections
- Threaded / union
- Medium
- O2, N2, Ar, CO2, NG
Pressure regulatorsARD-RG-003
Liquid-hydrogen pressure-reducing valve
- Size range
- Nominal size to specify
- Pressure ratings
- Inlet / outlet pressure to specify
- Temperature
- LH2 service down to -253°C; selected limits to confirm
- Connections
- End connections to specify
- Medium
- LH2 / liquid hydrogen