Constructed of an aluminum center housing and cast-iron end plates, the Chief 3PG series is a high-pressure hydraulic gear pump with seven displacement sizes from 1.34 to 3.66 in3/rev (22-60cm3/rev). The standard mounting flange is SAE B—2 bolt, and the standard shaft is a 7/8" diameter straight with a 1/4" key. Additional shaft options are available.

The recommended working conditions are as follows:

• Filtration: 25 microns or better
• Oil Viscosity: 6 to 200 cSt
• Ambient Temperature: -8 to 130° F (-22 to 55° C)
• Oil Temperature: -12 to 175° F (-25 to 80° C)
• Inlet pressure 12 to 32 PSI absolute

Specific model features:

• Model code: GP30-43D-78KB2
• CID: 2.62 in3/rev (43 cm3/rev)
• GPM: 18.8 @ 1800 RPM
• RPM: 2000 (rated), 2800 (max)
• PSI: 3625 (rated), 4060 (max)
• Shaft: 7/8” Straight, 1/4” Key
• Mounting flange: SAE B—2 bolt
• Ports: SAE 16 /12
• Rotation: Clockwise