Wherever jobs demand the most, you'll find a Granco. Made in the USA, Granco pumps are today's choice for hardworking professionals and have been since 1938. Granco pumps, the only ball-type pumps manufactured today, offer unmatched durability. Constructed with quality materials, Granco pumps utilize a floating design, eliminating metal-to-metal contact.
Reducing stress and wear to the pump promotes durability for years of reliable, continued operation. A Granco can do it. Adaptable and versatile, Granco pumps can move tremendous varieties of fluids with viscosities from 32 ssu (water) to over 1,000,000 ssu (cold grease). From moving molasses to fighting fires, transferring petroleum products and more, Granco pumps have countless applications.
Reducing stress and wear to the pump promotes durability for years of reliable, continued operation. A Granco can do it. Adaptable and versatile, Granco pumps can move tremendous varieties of fluids with viscosities from 32 ssu (water) to over 1,000,000 ssu (cold grease). From moving molasses to fighting fires, transferring petroleum products and more, Granco pumps have countless applications.
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The secret is the unique, floating Granco rotor. Pivoted in a spherical housing, the rotor provides positive expulsion of fluid from the pump chamber directly into the line of flow. The simplicity of the Granco design provides excellent fluid displacement without the use of gears, blades, vanes, paddles, scoops, pistons, valves or stators.
The basic Design principle of the Granco pump is that of the very reliable "Cardan" type of universal joint. The angle between the shafts, when rotating, causes part of the pin structure or cross, to move closer to, and then farther from the drive shaft lug and idler lug. By using this dynamic energy transition we are able to capitalize on the principles of physics to create matter/fluid flow.
The secret to our dependable operation is the unique, floating rotor which is pivoted in the spherical housing. This rotor provides the positive expulsion of fluid from the pumping chamber directly to the line of flow. The simplicity of this design with only one move part provides the most dependable pump manufactured today.
Granco pumps are guaranteed to be free of defects in material and workmanship for one (1) year after the date of shipment. Upon our written or verbal consent, any pump claimed defective may be returned to us for examination. If we determine that the pump to be defective, it will be replaced or repaired at our option, FOB plant.
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