Sotera Diaphragm Pumps

The power distribution is a unique reciprocating, spring driven, double diaphragm configuration retaining constant pressure, regardless of the load. Motor amperage is actually reduced as back pressure increases. No Internal Bypass required - the pump automatically goes neutral when the end of hose valve is shut off. These pumps can be configured in materials that are resistant to industrial chemicals and proven to provide complete compatibility coverage for a wide range of fluids.