Strainer valve and water treatment facilities with wash with bypass function

(B, ) the utility model discloses a strainer valve and water treatment facilities with wash with bypass function, main (b) (b) are that (b) (b) control case lower extreme interfacial separates the seal section face that is equipped with, radially intake blind hole, water conservancy diversion blind hole and central water conservancy diversion blind hole, and the transposition corresponds the section of the closing face, pending water hole, water purification hole, wash port, the upper and lower water distribution hole that are equipped with and closes or feed through on ground and the disk seat terminal surface. Before the work, the muddiness that forms for the impurity that prevents to pile up in the water supply pipe or yellow scale is intake and is led to the fact the jam to water treatment facilities's filter material, rotate (b) (b) control case earlier and make its water purification hole or wash port transposition intercommunication on the relative disk seat terminal surface in radial water hole of terminal surface down, with the muddiness intake direct from the valve body the water purification hole or the wash port is outside filters after discharging again, prevented the jam of filter material. When water treatment facilities need maintain the stop work because of the filter material breaks down, control the outside water supply of meeting an urgent need of discharging in direct water purification hole through the valve body of intaking, improved the production efficiency of water treatment. (B, )