Gear Pumps 
Maintenance
Maintenance
Maintenance
NAPCO rotary gear pumps have been designed and equipped to provide satisfactory use. They come with especially hardened surfaces on the shafts where the seals and bearings ride to extend the operating life of those pump parts. The pump chamber, shafts, and gears have been molded and machined to exacting dimensional tolerances, and the seals and bearings selected, to provide greater operating efficiency and extended wear. Despite these features, the pump will still require proper maintenance and operation for safe, satisfactory performance.
NAPCO rotary gear pumps are designed with eight (8) easily accessible grease zerk fittings.
NAPCO Rotary Gear Pumps come installed with one .016 chamber gasket on the drive side bearing housing/side cover and three .008 inch chamber gaskets on the non-drive side bearing housing/side cover.
NAPCO utilizes a combination of high pressure and low pressure seals in its pumps.
NAPCO pump gears are pressure-fitted on to the shafts.