Dickow Pump
The Series NMWR seal-less centrifugal pumps (photo) have magnetic couplings and no shaft duct to the atmosphere, and are available with maximum capacity to 4,000 gal/min and differential head to 500 ft. The containmment shell forms a closed system with a hermetically sealed liquid end. They are designed to handle heat transfer fluids with temperatures up to 750°F without cooling. The containment shell provides a simpler replacement to conventional double-acting mechanical seals with external fluid reservoirs, says the firm. — Dickow Pump Co., Marietta, Ga.