Eternal Hydraulic GPA Internal Gear Pump
GPA quiet internal gear pump are manufactured with technology introduced from Amercian Vickers Corp. Fixed displacement internal gear pumps that can be driven by fixed or variable speed prime movers. Available in single, double, triple and quadruple configuration to suit a wide variety of application. Flow of 1.76 ~63.6ml/r are available. Nulti-double pumps can be conbined according to different flowing capacity. The max pressure is of 10Mpa (100bar) and max speed is of 3000r/min. The pumps are provided with compact structure, smooth run, little pulsation pressure, quietness and easy service and suitable for using in hydraulic systems of various machines. such as various machine tools, packing, plastick injection, hoisting, die-casting, man-made baord, and food machines etc.
Model Code
GPA- | 2 | 2 | -10 | 1 | R |
型号 Model |
系列号 ltern No |
压力参数 Pressure |
公称排量 Displacement (ml/r) |
轴伸形式 Shaft |
旋向 Rotation |
GPA内啮合齿轮泵 GPA Internal Gear Pump |
1 | 1: 6.3Mpa 2: 10Mpa 3: 16Mpa |
1 2 4 6 8 |
1 :Φ12 | R: CW L:COW |
2 | 10 12.5 16 20 25 |
1 :Φ20 2: Φ25 |
|||
3 | 25 31.5 40 50 63 |
1 : Φ25 2: Φ30 |
Dimension

Technical Data
DisplacementSize mm Code Of Series |
GPA1- | GPA2- | GPA3- | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 2 | 4 | 6 | 8 | 10 | 12.5 | 16 | 20 | 25 | 31.5 | 40 | 50 | 63 | |
A | 82 | 120 | 152 | |||||||||||
B | 80 | 115 | 150 | |||||||||||
D | Φ63 | Φ100 | Φ125 | |||||||||||
d | Φ12 | Φ20( Φ25) | Φ25 (Φ30) | |||||||||||
d2 | Φ9 | Φ11 | Φ13 | |||||||||||
S | 85 | 125 | 160 | |||||||||||
LI | 25 | 36 | 58 | |||||||||||
L2 | 34 | 47 | 69 | |||||||||||
F | 7 | 9 | 10 | |||||||||||
E | 25 | 32 | 40 | |||||||||||
G | G1/2″ | G1” | G 11/2” | |||||||||||
N | 4 | 6 (8) | 8 (10) | |||||||||||
P | 13.5 | 22.5 (28) | 28 (33) |
Features of GPA Internal Gear Pump
- Low noise.
- Internal pressure relief valve option.
- Heavy duty bearing option for indirect drives.
- ISO metric mounting.
- Choice of clockwise or anti-clockwise rotation.
- G(BSPF) threaded ports.