High pressure, zero-leakage pump does not place dynamic seals or bearings in contact with process fluid. From American Lewa Inc., each pump has two PTFE diaphragms that are hydraulically balanced to operate as a backup for each other. Pump sizes range from 25 to 47,500 gal/hr against pressures from 250 to 17,000 psig with a flow adjustment range of 100:1.

March 2001, RS# 227