QF-40A2 Gas Cylinder Valve
QF-40 Industrial Gas Series
The QF-40A2 is a cylinder valve for oxygen, nitrogen, argon and helium service. Its inlet, outlet and cone sealing interface are specified for connection matching.
Key facts
| Applicable medium | Oxygen, Nitrogen, Argon, Helium |
|---|---|
| Working pressure | 20 MPa |
| Gas-tightness test pressure | 24 MPa |
| Model | QF-40A2 |
Specifications
Application
| Applicable medium | Oxygen, Nitrogen, Argon, Helium |
|---|
Pressure and safety
| Working pressure | 20 MPa |
|---|---|
| Gas-tightness test pressure | 24 MPa |
| Proof test pressure | 45 MPa |
| Safety device | No safety device |
Connections
| Cylinder / inlet connection | BS341-1" |
|---|---|
| Outlet connection | BS.3(G5/8-14-RH-INT) |
| Connection sealing form | 60° cone seat |
Materials
| Body material | HPb59-1 |
|---|---|
| Stem material | HPb59-1 |
| Handwheel material | ZL102 |
Operating conditions
| Temperature range | -40 °C to 60 °C |
|---|
Manufacturing references
| Manufacturing standard / reference | GB/T 15382 |
|---|
Product documents
Technical Illustration
For reference. Not to scale. H: overall height in this view. W: overall width in this view. Lettered directions do not specify measured dimensions.
Product overview
The QF-40A2 is a cylinder valve for oxygen, nitrogen, argon and helium service. Its inlet, outlet and cone sealing interface are specified for connection matching. Check the cylinder and equipment connections against the specifications below. This configuration has no safety device.
Key advantages
Multi-gas applications
A model identified for oxygen, nitrogen, argon and helium service.
Cone sealing interface
The specified cone seat supports checking the mating seal.
Defined connections
Separate cylinder inlet and equipment outlet designations.
Identifiable construction materials
Body, stem and handwheel materials are listed in the specifications.
Product information
Connection sealing form: 60° cone seat. Body material: HPb59-1. Temperature range: -40 °C to 60 °C. Manufacturing reference: GB/T 15382.
Information for your enquiry
Provide the exact model, gas species and required inlet and outlet connections. Confirm the sealing material and service requirements for the requested configuration. This configuration has no safety device.
Available models
Compare models in the QF-40 Industrial Gas Series family. Check each model's specifications; models in one family are not automatically interchangeable.
| Model | Applicable gas | Working pressure | Connection A | Connection B |
|---|---|---|---|---|
| QF-40A2 Current model | Oxygen, Nitrogen, Argon, Helium | 20 MPa | BS341-1" | BS.3(G5/8-14-RH-INT) |
| QF-40A3 | Oxygen, Nitrogen, Argon, Helium | 20 MPa | PZ27.8(25E) | 0.965-14NGO-RH |
| QF-40B3 | Oxygen, Nitrogen, Argon, Helium | 20 MPa | PZ27.8(25E) | SI21.7-14-RH-EXT/NF E-29-650 |
Contact ANYI
Discuss this valve with our team
Send us your gas medium, working pressure, connection requirements and quantity - photos of the valve or cylinder you use today help too - and our team will reply.
Product: QF-40A2
- geoffrey@anyivalves.com
- +86 21 52707913
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