P SERIES® PUMPS

Industry workhorse, unmatched efficiency, and control.

P SERIES® PUMPS

Industry workhorse, unmatched efficiency, and control.

Hydro-Gear’s commercial piston pumps are smooth and efficient. High-performing and maintenance-free, they feature fixed-displacement charge pumps and check or shock valves to provide an infinitely variable speed range between zero and full displacement in both forward and reverse modes of operation. With a wide range of options, find the perfect piston pump for your unique application.

  • Return-to-neutral device for smooth de-stroke capability
  • Most industry-standard shaft options for greater adaptability
  • Tandem pumps for multi-circuits
  • Auxiliary pumps to provide power to additional functions
  • Cooling fan when additional cooling is desired

Product Specs

Specifications
PC
PE
PG
PK
PR
PY

Displacement
0.37 in3/rev
[6.1 cc/rev]
0.62 in3/rev
[10.3 cc/rev]
0.62 in3/rev
[10.3 cc/rev]
0.73 in3/rev
[12 cc/rev]
0.97 in3/rev
[16 cc/rev]
1.33 in3/rev
[21.8 cc/rev]

Input Speed

-Max Hi-Idle [No Load]
-Min [Loaded]
3600 rpm

1800 rpm
3600 rpm

1800 rpm
3600 rpm

1800 rpm
3600 rpm

1800 rpm
3600 rpm

1800 rpm
3600 rpm

1800 rpm

System Operating
Pressure

- Continuous
- Intermittent
- Peak
750 psi
[51 bar]

1750 psi
[120 bar]

2500 psi [172 bar]
1000 psi
[70 bar]

2100 psi
[145 bar]

3500 psi
[240 bar]
1500 psi
[103 bar]

2100 psi
[145 bar]

3500 psi
[240 bar]
1500 psi
[103 bar]

2100 psi
[145 bar]

3500 psi
[240 bar]
1500 psi
[103 bar]

2500 psi
[172 bar]

3750 psi
[260 bar]
1500 psi
[103 bar]

2700 psi
[190 bar]

3750 psi
[260 bar]

Pump Performance

- @ 2400 rpm/ 1000 psi
- @ 3000 rpm/ 1000 psi
- @ 3600 rpm/ 1000 psi
3.6 gpm
[13.6 I/min]

4.5 gpm
[17.0 I/min]

5.4 gpm
[20.4 I/min]
6.1 gpm
[23.1 I/min]

7.6 gpm
[28.8 I/min]

9.2 gpm
[34.8 I/min]
6.1 gpm
[23.1 I/min]

7.6 gpm
[28.8 I/min]

9.2 gpm
[34.8 I/min]
7.1 gpm
[26.8 I/min]

8.9 gpm
[33.6 I/min]

10.8 gpm
[40.8 I/min]
9.6 gpm
[36.3 I/min]

12.0 gpm
[45.4 I/min]

14.4 gpm
[54.5 I/min]
13.1 gpm
[49.6 I/min]

16.4 gpm
[62.1 I/min]

19.6 gpm
[74.2 I/min]

Control Torque Req'd to Stroke Pump

- (-20° External Stroke angle)
lb-in/1000 psi [Nm/70 bar]
- lb-in/500 psi [Nm/35 bar]
75 lb-in
[8.5 Nm]

55 lb-in
[6.2 Nm]
85 lb-in
[9.6 Nm]

60 lb-in
[6.8 Nm]
85 lb-in
[9.6 Nm]

60 lb-in
[6.8 Nm]
85 lb-in
[9.6 Nm]

60 lb-in
[6.8 Nm]
95 lb-in
[10.7 Nm]

75 lb-in
[8.5 Nm]
170 lb-in
[19.2 Nm]

125 lb-in
[14.1 Nm]

Pump Oil Temperature

- Maximum Intermittent
- Normal Operating Range
230 F° [110 C°]

-10-200 F°
[-23-93 C°]
230 F° [110 C°]

-10-200 F°
[-2 -93 C°]
230 F° [110 C°]

-10-200 F°
[-23-93 C°]
230 F° [110 C°]

-10-200 F°
[-23-93 C°]
230 F° [110 C°]

-10-200 F°
[-23-93 C°]
230 F° [110 C°]

-10-200 F°
[-23-93 C°]

Fluid Viscosity Limits @230 F° [110 C°]

- Optimum
- Minimum
70 SUS
[13 Cst]

55 SUS
[9 Cst]
70 SUS
[13 Cst]

55 SUS
[9 Cst]
70 SUS
[13 Cst]

55 SUS
[9 Cst]
70 SUS
[13 Cst]

55 SUS
[9 Cst]
70 SUS
[13 Cst]

55 SUS
[9 Cst]
70 SUS
[13 Cst]

55 SUS
[9 Cst]