Cla-Val 33ATD Fire Protection Air and Vacuum Valve with Throttling Device
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Cla-Val 33ATD Fire Protection Air and Vacuum Valve with Throttling Device
Cla-Val 33ATD combination air release and vacuum breaker valve with throttling device for fire protection systems, 1 to 6 inch. Exhausts air on start-up, breaks vacuum on shutdown and releases air that accumulates in operation. UL approved.
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Key specifications
| Function | Combination air release and vacuum breaker valve with throttling device |
| Sizes (UL approved) | 1, 2, 3, 4, 6 in |
| End connections | Inlet NPT or flanged ANSI 150#/300# (RF or FF); outlet NPT |
| Body and cover | Epoxy-coated ductile iron (ASTM A-536); optional seawater and severe-service materials |
| Float | 316 stainless steel (monel or super duplex optional) |
| Rubber parts | Buna-N |
UL Listed
Download datasheet (PDF)