What are the main types of check valves?
Check valve (Check Valve):1, according to the structure, can be divided into lifting check valve, swing check valve and butterfly check valve three.The lift check valve can be divided into two types: vertical and horizontal.Swing check valve is divided into single, double valve and multi flap type of three.Butterfly check valve is straight through type.These types of check valves can be divided into three types: thread connection, flange connection and welding.
Check valve structure of the main drop type, DL swing and butterfly, JB/T308 provides the structure code.
Two, noun explanation:The opening and closing parts depend on the flow of the medium and the power is turned on or off by itself. The valve that prevents the backflow of the medium is called a check valve. Check valves belong to the automatic valve, mainly used for one-way flow of media channels, allowing only medium to flow in one direction, to prevent accidents.
