Combination air valve (Air release and vacuum breaker valve)
Pipe Steel Industries offers Combination air valve (Air release and vacuum breaker valve) as part of our fire pump and accessories sourcing range. Use the technical options below to prepare your project enquiry.
Selection details: standards: UL 2573, NFPA 20, AWWA C512.
Confirm the exact model, dimensions, working conditions and required approvals with our sales team before ordering. Model-specific certificates and availability are verified with the quotation.
Request a Quotation for Combination air valve (Air release and vacuum breaker valve)Email a product-specific RFQ
Technical Specifications
| Property | Details |
|---|---|
| Standard | UL 2573, NFPA 20, AWWA C512 |
| Connection | Threaded NPT, Flanged as B16.1 Class 125, B16.5 Class 150, etc. |
| Feature | Large and small orifices, vent and admit air |
| Temperature | 0 ~ 80°C |
| W. pressure | 300 psi |
| Surface | FBE coating as AWWA C550 |
Sizes & Technical Data
Reference options for product selection. Confirm the exact dimensions, model and project approvals with your quotation.
| Inlet | Outlet 1 | Orifice 1 | Working pressure (psi) | Ref.No. |
|---|---|---|---|---|
| 1″ NPT / BSPT | 1/2″ NPT | 3/4″ | 250 | U1901 |
| 1-1/4″ NPT / BSPT | 1/2″ NPT | 3/4″ | 250 | U1902 |
| 1-1/2″ NPT / BSPT | 1/2″ NPT | 3/4″ | 250 | U1903 |
| 2″ FLG / NPT / BSPT | 1-1/4″ NPT | 1-1/4″ | 300 | U1904 |
| 2-1/2″ FLG | 2″ NPT | 2″ | 300 | U1905 |
| 3″ FLG / NPT / BSPT | 2″ NPT | 2″ | 300 | U1906 |
| 4″ FLG | 2-1/2″ NPT | 2-1/2″ | 300 | U1907 |
| Inlet | Outlet | Orifice | Working pressure (psi) | Ref.No. |
|---|---|---|---|---|
| 1″ FLG / NPT | 1″ NPT | 0.076″ | 300 | U1911 |
| 2″ FLG / NPT | 2″ NPT | 0.076″ | 300 | U1912 |
| 3″ FLG / NPT | 3″ NPT | 0.076″ | 300 | U1913 |
| 4″ FLG / NPT | 4″ NPT | 0.076″ | 300 | U1914 |
| 6″ FLG / NPT | 6″ NPT | 0.076″ | 300 | U1915 |
Applications
- Air release valve procurement
- Fire pump and accessories project packages
Finishes & Options
- Specify size, connection, material and quantity in your enquiry.
- Request model-specific documentation and destination-port delivery terms.
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