QF-40A3 Gas Cylinder Valve
QF-40 Industrial Gas Series
The QF-40A3 is a cylinder valve for oxygen, nitrogen, argon and helium service. It uses a 60° cone seat.
Key facts
| Applicable medium | Oxygen, Nitrogen, Argon, Helium |
|---|---|
| Working pressure | 20 MPa |
| Gas-tightness test pressure | 24 MPa |
| Model | QF-40A3 |
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 | 30 MPa |
Connections
| Cylinder / inlet connection | PZ27.8(25E) |
|---|---|
| Outlet connection | 0.965-14NGO-RH |
| 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-40A3 is a cylinder valve for oxygen, nitrogen, argon and helium service. It uses a 60° 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.
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. Confirm the required safety-device configuration when enquiring.
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 | Oxygen, Nitrogen, Argon, Helium | 20 MPa | BS341-1" | BS.3(G5/8-14-RH-INT) |
| QF-40A3 Current model | 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-40A3
- geoffrey@anyivalves.com
- +86 21 52707913
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