QF-40B3 Gas Cylinder Valve
The QF-40B3 is a cylinder valve for oxygen, nitrogen, argon and helium service. It uses a 90° cone seat.
The cylinder inlet and equipment outlet are specified separately for connection matching. Check both interfaces and the sealing arrangement against the mating components when selecting this exact model.
Key advantages
- Specified gas service — A cylinder-valve configuration for oxygen, nitrogen, argon and helium service.
- Cone-seat connection — The defined cone seat helps identify the required mating sealing geometry.
- Connection matching — Check the cylinder-side and equipment-side connections independently for this model.
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Specifications
| Parameter | Value |
|---|---|
| Applicable medium | Oxygen, Nitrogen, Argon, Helium |
| Working pressure | 20 MPa |
| Gas-tightness test pressure | 30 MPa |
| Proof test pressure | 45 MPa |
| Safety device | No safety device |
| Cylinder / inlet connection | PZ27.8(25E) |
| Outlet connection | SI21.7-14-RH-EXT/NF E-29-650 |
| Connection sealing form | 90° cone seat |
| Body material | HPb59-1 |
| Stem material | HPb59-1 |
| Handwheel material | ZL102 |
| Temperature range | -40 °C to 60 °C |
| Manufacturing standard / reference | GB/T 15382 |
Technical Illustration
For reference. Not to scale.
Product Configurator
| Model | Gas | Working pressure | Inlet | Outlet | Sealing |
|---|---|---|---|---|---|
| QF-40B3 | Oxygen, Nitrogen, Argon, Helium | 20 MPa | PZ27.8(25E) | SI21.7-14-RH-EXT/NF E-29-650 | 90° cone seat |
| Your request |
Special requirements are subject to technical confirmation. Your requests do not change the standard product specifications.
Company catalogue
No approved company catalogue is currently available. You can request specific product documents through Technical Matching.
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