Pump housings and gears are made of top quality bronze, shafts are made from Stainless Steel 303. Bronze bearings are designed of high performance carbon-graphite materials selected for wear resistance and long service life.
Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffected by the back pressure in the discharge line. Shaft speed and flow are directly proportional. Recommended pressure limits are 7 bar for water and non-lubricants, 10 bar for oil and lubricants. Maximum shaft speed is 1750 rpm.