Combination Valve Dealers in Howrah

combination air valve

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 Air venting for small pockets of air release from pressurized piping system2. Air/vacuum for large air exhaust during filling of the pipeline and 3. Admitting large volumes of air during draining of piping system.Features:• Advanced design with simple mechanism, strong float to prevent cracking during sudden water hammer.• The float will still be at bottom level even up to air velocity about sonic velocity, until water rises to lift the float and seal the orifice.• No arms or levers to prevent vibrating, direct closure of the float.• Smooth cage outside of the float, keep float moving in specified guide rail.• Bottom impact rubber for collision prevention, and drain easy with proper holes around during vacuum.• Outside screen will be an option for safety and prevent insects or birds in.• Fully fusion epoxy coated inside and outside of valve body for long term services.• Manufacturing standard meets BS EN 1074-3, AWWA C512• Flange drilling and dimension meets IS 1538 and BS EN 558.Service Fields:For water system, fire fighting, irrigation System.Technical Data:Size Range: DN 50-200MMPressure ratings: 1.0Mpa, 1.6Mpa, 2.5 Mpa.Working temperature: -10°-80°C.Flow media: clean waterEnd Connection: PN10/16/25.