Drain valve for use in flushing device, has loading unit for loading auxiliary weight in valve body to bring unit after producing partial flushing, where weight is designed to extend partially behind housing during lowering valve body

摘要

The valve (4) has a valve body (14) height-adjustable in housing (20) by a traction unit, and a floater arranged in a lower end of the body in a float chamber. An auxiliary weight is operated by another traction unit for executing partial flushing, with which the weight is raised with the body. A loading unit is provided for loading the weight in the body to bring the unit after producing the flushing against a lifting force of the floater in a closing position. The weight is designed to extend partially behind the housing during lowering the body.