Relief duty & set pressure
State the required set pressure, relieving conditions and capacity. Include inlet and outlet connections, backpressure and the medium for sizing.
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| Available Sizes | DN15 |
|---|---|
| Connection Type | BSP · NPT |
| Size | DN15 |
| Set Pressure (MPa) | 11 ~ 19.9 · 20 ~ 28 · 5 ~ 10.9 |
| Body Material | CF8 |
| Seat Material | HPb59-1 |
| Disc Material | HPb59-1 |
| Flow Coefficient | 0.66 |
| Media | LNG. LO2. LN2. LAr, CO2 |
| Pressure Rating | PN320 |
| Thread Type | Male |
Catalogue options. Operating limits depend on the selected size, materials and configuration.
PN320 cryogenic safety valve with a CF8 body and male BSP or NPT connections. Select the set-pressure range and provide the required relieving capacity, medium, temperature and outlet backpressure for sizing.
Applications: Cryogenic applications
For technical documentation or assistance with your selection, contact Nordic Valves.
PN320 cryogenic safety valve with a CF8 body and male BSP or NPT connections. Select the set-pressure range and provide the required relieving capacity, medium, temperature and outlet backpressure for sizing.
| Specification | Catalogue data |
|---|---|
| Size range | DN15 |
| Connection | Male threaded, BSP / NPT |
| Nominal rating | PN320 |
| Operation | Spring-loaded pressure relief |
| Source temperature* | -196°C to +80°C |
| Set-pressure bands | 5-10.9 / 11-19.9 / 20-28 MPa |
| Catalogue coefficient | 0.66 |
| Catalogue media | LNG, LOX, LN2, LAr, CO2 |
Catalogue options. Nominal ratings are not the allowable pressure at every temperature; confirm the selected configuration. *Documented family temperature range; confirm pressure-temperature limits and the selected trim.
| Component | Catalogue material |
|---|---|
| Body | CF8 |
| Seat | HPb59-1 |
| Disc | HPb59-1 |
Materials shown are the published catalogue construction. Confirm seat, seals and any service-specific trim with the quotation.
| 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 and diameter dimensions are in mm; weights are in kg. Pressure bands are in MPa (1 MPa = 10 bar). Height and length datums follow the drawing. Thread designations and ISO mounting codes are not linear dimensions. PN320 DN15 source arrangement with M36x2 / M39x2 metric connections. Source body/trim are S30408 / S32168. Catalogue CF8 / HPb59-1 and BSP/NPT variants need their own drawings. Setting bands are not certified discharge capacity. Use the approved order drawing for installation and fabrication.
| Component | Source 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 |
Materials apply to the supplied reference arrangement. PN320 DN15 source arrangement with M36x2 / M39x2 metric connections. Source body/trim are S30408 / S32168. Catalogue CF8 / HPb59-1 and BSP/NPT variants need their own drawings. Setting bands are not certified discharge capacity.
| Engineering data | Configuration requirements |
|---|---|
| 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. |
Nominal pressure class, temperature range and relief set pressure are separate specifications. Confirm the allowable pressure at the design temperature for the selected construction.
PN320 DN15 source arrangement with M36x2 / M39x2 metric connections. Source body/trim are S30408 / S32168. Catalogue CF8 / HPb59-1 and BSP/NPT variants need their own drawings. Setting bands are not certified discharge capacity.
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