Group 1.25 External Gear Pump

Features

·Low noise, high efficiency, long life service.

·High performance even at low speeds.

·Multiple oil port and shaft extension options available.

·Leakage-free shaft seal Optional reversible pump and motor.

Technical Specifications

technology	parameter
Displacement (mL/rev):	1.4, 2.1, 2.8, 3.5, 4.1, 5.2, 6.2, 7.6, 9.3, 11, 13.8
Suction absolute pressure (bar):	0.7…3 (all displacements)
Pressure specifications (bar):
Displacement 1.4~4.1 cm³/rev:	Max. continuous pressure P1=250, Max. intermittent pressure P2=270, Max. peak pressure P3=290
Displacement 5.2~6.2 cm³/rev:	Max. continuous pressure P1=230, Max. intermittent pressure P2=245, Max. peak pressure P3=260
Displacement 7.6~9.3 cm³/rev:	Max. continuous pressure P1=200, Max. intermittent pressure P2=215, Max. peak pressure P3=230
Displacement 11 cm³/rev:	Max. continuous pressure P1=170, Max. intermittent pressure P2=185, Max. peak pressure P3=200
Displacement 13.8 cm³/rev:	Max. continuous pressure P1=150, Max. intermittent pressure P2=165, Max. peak pressure P3=180
Speed specifications (r/min):
Displacement 1.4~2.8 cm³/rev:	Min. speed nmin=800, Max. speed nmax=6000
Displacement 3.5~4.1 cm³/rev:	Min. speed nmin=800, Max. speed nmax=5000
Displacement 5.2~6.2 cm³/rev:	Min. speed nmin=600, Max. speed nmax=4000
Displacement 7.6~9.3 cm³/rev:	Min. speed nmin=600, Max. speed nmax=3200
Displacement 11 cm³/rev:	Min. speed nmin=600, Max. speed nmax=2200
Displacement 13.8 cm³/rev:	Min. speed nmin=600, Max. speed nmax=1800
Rotation direction:	clockwise (D), counter-clockwise(S), reversible (R)
Volumetric efficiency (ηv, %):	Displacement 1.4 cm³/rev: ≥90, Displacement 2.1~4.1 cm³/rev: ≥91, Displacement 5.2~9.3 cm³/rev: ≥92, Displacement 11~13.8 cm³/rev: ≥94

Instruction

Performance data shown are the average results based on series of tests of production units
Testing situation: oil temperature:40-45℃: Oil Viscosity:27-32 Cst.