The reinforced inlet flange, outlet flange and mounting lugs prevent breakage even when subjected to rough treatment. The tapered internal body is a unique design which assures automatic settlement of the wings, thus guaranteeing smooth efficient operation for many years. Each pump is tested to a suction lift of 7 meters of water and 20 meters of discharge head. A drain plug allows water to be drained if the unit will be unused for extended periods of time, or if there is a risk of freezing. Sigma pumps used for water must be protected from rust whenever they will be unused for extended periods of time.
Suction lift is the vertical distance from the pump to the surface of the water.
Use in locations where there is no electricity. Will pull water through a submersible pump. Will pressurize a tank so there is water at the taps. Sigma Type 'K' pumps meet all major European industrial standards. Sigma Type 'K' hand pumps have numerous industrial applications.