Pressure valve WAFV-MK2

manualmotoralarm

The SKUM Water Actuated Foam Valve (WAFV) consists of a ball valve and an approved, corrosion-resistant actuator. The valve operates by water pressure only, from the mains water pressure supply on a bladder tank system, or from the water motor alarm port in a fire sprinkler system. The WAFV valve body is made from 316 stainless steel, and the actuator has an anodized aluminum housing. The actuator will open the valve when supplied with water pressure of 2 bar to 16 bar (29 psi to 232 psi) and must be manually reset. The actuator is fitted with a manual override feature. Application The WAFV is primarily used in bladder tank foam systems and is installed in the foam concentrate line just before the propor tioner. When the foam system is operated, the increased water pressure opens the WAFV and discharges foam concen trate to the proportioner. WAFV valves are also used in foam pump balanced pressure proportioning systems, or in non pressurised tank systems where the proportioner is located at a lower level than the tank. In such applications, the WAFV prevents foam leakage or foam siphoning into the water line. A WAFV may be used with all types of foam concentrates. Listings and Approvals  PED  ATEX (zone 1) SIL 3