KP
FEATURES
3
4
1
1 Cylindrical Roller Bearing supports the
thrust load generated by the piston group.
2 Bronze-Coated Wear Plate dissipates
heat and transfers it to the case drain oil.
3 High Volume Charge Pump creates
additional flow through the case drain,
flushing hot oil from the pump.
4 By-Pass Valve enables free-wheeling
when a non-operable machine needs to
be moved.
5 Cooling Fins help dissipate heat into the
atmosphere.
5
2
The KP Series of pump is the newest addition to our
rapidly expanding product line. The product is a
variable displacement, axial piston pump and is a
natural compliment to the drive products historically
offered by White Hydraulics. This product is ideally
suited for the lawn and garden, and under 50 hp
construction markets. Features and capabilities
include minimum and maximum continuous speeds of
600 rpm and 3,600 rpm, respectively, industry
standardized mounting flanges, pressure ratings that
are comparable to competitive product offerings and
the option of incorporating White Hydraulics’ Shock
Reduction Technology (SRT).
SPECIFICATIONS
Displacement Weight Max. Pressure psi (bar)-
in3/rev. (cc/rev.) lb (kg) 1)Cont. 2)Inter. 3)Peak
Max. Speed (rpm) - Charge Pump
Code 1)Min 2)Max in3/rev. (cc/rev.)
1 2 1 2 3
010 .62 (10) 600 3600 7.9 (3.6) .18 (3) 1425 (98) 2125 (147) 3500 (241)
013 .79 (13) 600 3600 7.9 (3.6) .18 (3) 1425 (98) 2125 (147) 3500 (241)
018 1.10 (18) 600 3600 15.0 (6.8) .18 (3) 1425 (98) 2125 (147) 3500 (241)
2
Oil Temperature-
Viscosity Rating-
Filter-
212°F (100°C) and a peak temperature of 230°F (110°C).
KP
OPERATING PARAMETERS
Although the pumps use cooling fins to help dissipate heat, we recommend that the continuous
system temperature be kept at or below 195°F (90°C). It can see an intermittent temperature of
We recommend use of a 60 SUS (10cSt) viscosity hydraulic oil at no more than 212°F (100°C).
Due to the precise machining and exact tolerances in the pump, White Hydraulics recom-
mends a filter rating of 20 Micron absolute.
Return to Neutral- See figure below. (All dimensional information contained in this catalog are inch units.)
2.13 2.13
20° 20°
20° 20°
1.69 1.69
(2) Ø .33 (2) Ø .33
1.69 1.69
Shock Reduction - White Hydraulics has developed the SRT for motors used in conjunction with the KP Pumps.
Technology (SRT) This technology reduces the effect of pressure spikes and resulting shock loads to the hydrau-
lic drive system.
Ordering Information- The KP needs to be application specific. Please contact White Hydraulics for ordering
information.
Input Shaft Direction- KP pumps can be configured with the input shaft to be powered in a clockwise or
counterclockwise direction. The standard is counterclockwise. Input shaft rotation must be
specified at time of order. Please consult White Hydraulics.
3
101
10cc & 13cc RIGHT HAND PUMP
INPUT SHAFT ROTATION
DDC*
Counterclockwise
A B A
Clockwise
B
5.79
2.40
.44
2.09
5.12
2.09
Flow Port a Out In In Out
Direction
2.81
Port b In Out Out In
.57
* Direct Displacement Control
Ø .47 Ø .20
.33
20° 20°
Case Drain
Location #3
DDC A B
2.47
5.47
Case Drain
Location #2
Suction Port
Suction Port Location #1
Location #2
Ø 3.25
.30
Suction Ports and Drain Ports
Case Drain are 9/16” -18 UNF SAE O-Ring
6.21 2.13
Location #1
Left and Right Hand Pumps are determined by the
.39 location of the DDC when looking at the side of the
4.13 pump with Ports a and b while the input shaft is
facing down.
8.21 Port b
3/4”-16 UNF-2B
SAE O-Ring Boss Port a
3/4”-16 UNF-2B
SAE O-Ring Boss
.83 .83
4
2.09
5.12
2.09
.44
2.40
5.79
10 & 13cc SHAFT DETAIL
.20
101
10cc & 13cc LEFT HAND PUMP
.31
2.00
1.18
Mounting
Flange
2.81
.59
.47
.57
M6 x .59 Deep
Ø .20
Ø .47
.33
20° 20°
Case Drain
B A Location #3
2.47
DDC
5.47
Case Drain
Location #2
Suction Port Suction Port
Location #2 Location #1
Ø 3.25
.30
Suction Ports and Drain Ports
are 9/16” -18 UNF SAE O-Ring Case Drain
2.13 6.21
Location #1
Left and Right Hand Pumps are determined by the
location of the DDC when looking at the side of the .39
pump with Ports a and b while the input shaft is 4.13
facing down.
Port a 8.21
Port b
3/4”-16 UNF-2B 3/4”-16 UNF-2B
SAE O-Ring Boss SAE O-Ring Boss
5
101
18cc RIGHT HAND PUMP
INPUT SHAFT ROTATION
DDC*
Counterclockwise
A B A
Clockwise
B
2.91
2.09
5.50
5.12
2.09
Flow Port a Out In In Out
.44
3.52
Direction
4.33
Port b In Out Out In
* Direct Displacement Control
.57 .35 Ø .59
Ø .24
Ø 3.25
22° 22°
A B
7.21 3.12
5.78 DDC
Case Drain Case Drain (2) M8x1.25
Location #2 Location #3 .63 Deep
Suction Port
Suction Port .69 .69
.20 Location #2
1.38 Location #1 2.91 1.38 1.38
Suction Ports and Drain Ports
5.78 are 9/16” -18 UNF SAE O-Ring
.47
Left and Right Hand Pumps are determined by the
7.95 location of the DDC when looking at the side of the
pump with Ports a and b while the input shaft is
Case Drain facing down.
Location #1
Outlet Port b
3/4”-16 UNF-2B Port a
.93 .93
SAE O-Ring Boss 3/4”-16 UNF-2B
SAE O-Ring Boss
6
2.09
5.50
5.12
2.09
2.91
.44
18cc SHAFT DETAIL
.20
101 18cc LEFT HAND PUMP
.12
2.17
1.42
Mounting
Flange
3.52
4.33
.67
.55
M6 x .59 Deep
Ø .59 .35 .57
Ø .24
Ø 3.25
22° 22°
B A
DDC 3.12 7.21
5.78
(2) M8x1.25 Case Drain
Case Drain
.63 Deep Location #3
Location #2
Suction Port
Location #2
.69 .69 Suction Port .69 .69
.20
1.38 1.38 2.91 Location #1 1.38
Suction Ports and Drain Ports
are 9/16” -18 UNF SAE O-Ring 5.78
.47
Left and Right Hand Pumps are determined by the
location of the DDC when looking at the side of the 7.95
pump with Ports a and b while the input shaft is
facing down. Case Drain
Location #1
Port a Port b
.93 .93
3/4”-16 UNF-2B 3/4”-16 UNF-2B
SAE O-Ring Boss SAE O-Ring Boss
