Hydraulic control valve is the one which dedicated to full-auto backflush filter system. This kind of valve is driven by pipeline system pressure and can implement two position and three-way switch automatically to realize filter auto-backflush.It also features simple structure, high reliability and long stable without maintenance. Diaphragm actuated structure can change water direction in short drive, that is, shut down inlet when backflush port is open, and vice versa.Therefore filter overflowing which brings about clean water and waste water mixing can be avoided.
Ultrastrong hydraulic performance, no friction in processs of station exchangment High reliability, stable operation of moving parts
Accurate position
Anti-chemical corrosion, applicable to various medium
Water flow turns in speedy, high effectiency in flushing and washing
Basic parameters 10bar Standard pressure grade: 10bar Minimum working pressure 1.0bar 2"-20 square/hour, cast iron or Copper, bayonet/BSP thread 3"-35 square/hour, cast iron or Copper, bayonet/BSP thread 4"-80 square/hour,, cast iron or Copper, bayonet/BSP thread
Typical application
Backflush valve is applied to auto-backflush filter system which has two paratactic filtered units at least. That is: during the process of backflush, clean water filtered by one filter unit becomes flush water for another filtered unit.
When hydraulic signal sent by controller is received, backflush valve shall change flow direction: shut down inlet, open outlet, clean water filtered by other filter unit enters this unit to flush, then flushed water is exhausted by drain outlet.
