CGA677H Gas Cylinder Valve
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CGA677H
The CGA677H is a cylinder valve for argon and nitrogen service. It combines a pressure-sealed construction with a 70° cone seat.
Key facts
| Applicable medium | Argon, nitrogen |
|---|---|
| Working pressure | 4350 psi (≈30 MPa) |
| Gas-tightness test pressure | 5220 psi (≈36 MPa) |
| Model | CGA677H |
Specifications
Application
| Applicable medium | Argon, nitrogen |
|---|
Pressure and safety
| Working pressure | 4350 psi (≈30 MPa) |
|---|---|
| Gas-tightness test pressure | 5220 psi (≈36 MPa) |
| Safety device | 6525 psi (≈45 MPa) |
Connections
| Cylinder / inlet connection | PZ27.8(25E) |
|---|---|
| Outlet connection | 1.030-14NGO-LH-EXT |
| Connection sealing form | 70° cone seat |
Construction
| Valve structure | Pressure-sealed design |
|---|
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 CGA677H is a cylinder valve for argon and nitrogen service. It combines a pressure-sealed construction with a 70° cone seat. This version has a left-hand outlet connection. Check its thread designation and sealing interface against the mating equipment; models in the same family are not automatically interchangeable.
Key advantages
Specified gas service
A cylinder-valve configuration for argon and nitrogen 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.
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: CGA677H
- geoffrey@anyivalves.com
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