Dag Other Bathroom Plumbing QBY3-20/25 Diaphragm Pump

Dag's QBY3-20/25 stainless steel, air-operated double-diaphragm pump uses compressed air to move liquids. It is a self-priming sewage pump described as corrosion resistant and suitable for corrosive liquids, liquids containing particles, viscous liquids, volatile or flammable liquids, and highly toxic liquids.

Pneumatic diaphragm pumps are available in plastic, aluminum alloy, cast iron and stainless steel. Diaphragm materials include Buna-N rubber, chloroprene rubber and fluororubber; the diaphragm, valve ball and valve seat can be customized for the liquid. With suitable parts, the pump can convey acids, alkalis and strong organic solvents.

Uses include chemical processing, spraying and water treatment, including applications where a general-purpose pump cannot move the liquid. Listed as Other under Bathroom Plumbing.