Goulds Sewage Pumps are specifically designed for sewage systems the pump come in either the 3WS model with 3″ flanged discharge, 2.5″ solids handling or 4WS model with 4″ flanged discharge, 3″ solids handling. The Goulds water pumps have standard silicon carbide/silicon carbide outer (lower) seals. With impellers made from Cast iron, ASTM A48, Class 30, two vane semi-open, non-clog design with pump out vanes for mechanical seal protection. the Goulds centrifugal pumps are dynamically balanced for smooth operation (silicon bronze impeller is an option). The casing are made from heavy duty gray cast iron, ASTM A48, Class 30 volute type casing with 4″, 125#, flanged, horizontal discharge conforming to ANSI standards. Compatible with A10-40, A10- 60 cast iron or A10-40B, A10-60B cast iron and brass (non-sparking) guide rail assembly. The dual mechanical seals are silicon carbide vs. silicon carbide outer seal and ceramic vs. carbon inner seal, stainless steel metal parts, BUNA-N elastomers. Upper and lower tandem mounted shaft seals are positioned independently and are separated by an oil-filled chamber. The pumps are capable of running dry without damage to components.
