WCB micro resistance slow closing backflow preventer valve

This WCB tilting disc slow closing check valve is integrally cast from ASTM A216 carbon steel for high temperature and pressure resistance. Eccentric short-stroke disc with external hydraulic buffer realizes two-stage closing to eliminate water hammer and impact noise. Metal hard seal fits steam and hot oil service. Widely used in power plant, heating, boiler and petrochemical high-pressure high-temperature pipeline systems.

1.The cast WCB carbon steel withstands high temperature up to 425℃, superior heat resistance than ductile iron valves, perfectly matching steam, boiler feed water and thermal circulation high-temperature pipelines.

2.The tilting disc plus hydraulic two-stage slow closing minimizes water hammer surge, avoids pump reversal and pipeline crack damage for continuous high-temperature industrial pump stations.

3.Epoxy coated ductile iron body features excellent anti-corrosion performance. Standard flange size realizes direct replacement of old valves without pipeline reconstruction, saving engineering transformation cost.

Standard export wooden case packaging

This hydraulic pressure check valve widely used in power plant circulating cooling water systems, thermal steam heat exchange pipelines, boiler feed water lines, chemical heat transfer oil pump stations, industrial high-temperature hot water circulation, waste heat recovery piping and steam pressurized pump rooms.