Stainless Steel Pre-Filter Series

A pre-filter (strainer) is a chamber-type filter installed on the pump suction line, upstream of the pump. Its basket catches leaves, hair and coarse particles before they reach the pump impeller and the filtration system. In centrifugal pumps without a built-in strainer, in multi-pump systems with a common suction manifold and in outdoor pools with a heavy leaf load, it extends pump life and reduces the load on the sand filter.

The body is made of stainless steel with flanged connections, with the water inlet and outlet placed opposite each other. The top lid closes with wing nuts and can be opened without tools to clean the basket. There is an air release plug on the lid and a drain plug at the bottom of the body.

The series is offered in two material grades: AISI 304, containing approximately 18% chromium and 8% nickel, for standard chlorinated pool water; and molybdenum-alloyed AISI 316, which is more resistant to chloride corrosion and is therefore recommended for salt electrolysis, seawater and thermal water systems. There are seven connection sizes: 2", 2½", 3", 4", 5", 6" and 8"; weights range from 13.1 kg to 32.1 kg.

Stock sizes ship quickly; units can be manufactured with project-specific connection sizes and body dimensions.