A change valve for back flush filter

The utility model discloses a change valve for back flush filter, change the valve set up in in the cavity of filter, should change the valve including turn to the elbow, the cover is established combined material layer on turning to elbow both ends outer wall, is used for to drive to turn to elbow pivoted slewing mechanism, controller, slewing mechanism passes the filter and turns to elbow fixedconnection, be provided with the through -hole on the combined material layer, the size of through -hole is the same with the tube hole size that turns to the elbow. The utility model discloses at thein -process that carries out the back flush to the jam filter tube, other filter tubes still can carry out the filter operation, have improved the work efficiency of filter, and can carry out the accurate control to the turned angle who turns to the elbow, have improved the back flush efficiency of filter. 本实用新型公开了种用于反冲洗过滤器的转阀，所述转阀设置于所述过滤器的腔体内，该转阀包括转向弯头、套设在转向弯头两端外壁上的复合材料层、用于带动转向弯头转动的转动机构、控制器，所述转动机构穿过过滤器与转向弯头固定连接，所述复合材料层上设