The heart of any automatic backflush filtration system. Our 3-way backflush valve switches flow direction between filtration and backwash modes using pipeline pressure – no external power required. Single-cavity low-pressure drive design protects the diaphragm for long service life. Available in 2", 3", and 4" sizes with bayonet connections, working pressure range 0.5-10 bar. PP body construction resists corrosion from fertilizers and chemicals. Short stroke design ensures smooth flow transition without water hammer or mixing of clean water with sewage. Ideal for multi-unit disc filters, screen filters, and shallow media filters. Can be configured with 4" or 3" sewage outlet.
