Models for up to 7,000-gpm have the ability to externally adjust the clearance. This ensure peak efficiency even after wear-loss. Back pump-out vanes reduce pressure on the shaft seal and bearings while ultra-smooth investment-cast impellers deliver hydraulic and mechanical balance.
These centrifugal pumps come in ductile iron, 316 stainless steel, CD4MCU, and Alloy 20 liquid paths for operation as high as 500° F.
A number of options and upgrades are also available to customize 811 to meet liquid-terminal applications and requirements.
Griswold Pump Company
22069 Van Buren Street, Grand Terrace CA 92313
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