Moog Radial Piston Pumps
MOOG RKP Radial Piston Pump
  • Description
  • Technique Feature
  • Specification
  • Applied Range

MOOG model of RKP Radial Piston Pump

Moog Series RKP II Radial Piston Pumps Catalogue

 

MOOG RKP Radial Piston Pump

 

A HIGH-PERFORMANCE, DURABLE AND QUIET PUMP DESIGN

 

The Moog Radial Piston Pump, also known as RKP, has served the industrial market for over three decades and is widely known for its robust and reliable design.

 

Since 2001, when Moog aquired the RKP business from Bosch, Moog has improved and optimized the original design to meet the requirements of key applications and modern industrial standards. The latest Moog design offers greater durability and quieter performance not only when compared to the older version, but also when compared to the state-of-art designs in the marketplace.

 

A significant change made to the design was an optimized pump housing with nine instead of seven pistons, which reduces flow pulsation and noise emission. Another improvement includes a redesigned sliding stroke ring. This version has been successfully introduced in the market since 2006 and has proven its superiority in characteristics such as low noise and durability. We are proud that no major failure case has been reported from the field.

 

Benefits and Features

- Significantly reduced sound level for noise-critical applications, helps machine builders to meet the European Union’s (EU) noise guideline (2003/10/EC)

- Available in sizes 19, 32, 45, 63, 80, 100 and 140 cc per revolution. For needs beyond these sizes, please contact your local Moog office.

The standard design permits continuous pressure to 280 bar [4,000 psi] with 350 bar [5,000 psi] peak limit and the high-pressure version is capable of continuous pressures up to 350 bar [5,000 psi] with 420 bar [6,000 psi] peak limit

- Highly energy efficiency design saves on operating costs

- Flexibility in implementing this product into new machine designs due to the availability of a large number of sizes, control types and mounting flanges, as well as approved versions for a variety of operating liquids

- Improved durability, low maintenance requirements and long pump life help significantly reduce maintenance costs and encourage more uptime

- Increased stability, even under unfavorable operating conditions

- Simplified connection for easy set-up and commissioning

- Explosion-proof and Digital Control (RKP-D) versions available

RADIAL PISTON PUMPS RKP–II

TECHNICAL DATA 

Parameters
Displacement [cm3/rev] 19 32 45 63 80 100 140
Type of construction Pump for open circuit with various control devices
Type of mounting End mounting, centering and hole-circle dia. to DIN/ISO 3019/2 (metric)
Mounting flange to DIN/ISO 3019/1 (inch)
Mounting flange to DIN/ISO 3019/2 (metric)
Mounting position Optional
Weight [kg] 22 33 33 71 71 71 105
Mass moment of inertia [kg cm2] 17.7 61 61 186.3 186.3 186.3 380
Line connections: according to ISO 6162
Medium pressure series 280 bar (4000psi)
Pressure port
Suction port
High pressure serie 350 bar (5000 psi)
Pressure port
Suction port
SAE 3/4”
3000 psi
SAE 3/4“
3000 psi
SAE 3/4“
6000 psi
SAE 3/4“
6000 psi
SAE 1”
3000 psi
SAE 1 1/2“
3000 psi
SAE 1”
6000 psi
SAE 1 1/2“
3000 psi
SAE 1”
3000 psi
SAE 1 1/2“
3000 psi
SAE 1 1/4“
3000 psi
SAE 2“
3000 psi
SAE 1 1/4“
6000 psi
SAE 2“
3000 psi
SAE 1 1/4“
3000 psi
SAE 2“
3000 psi
SAE 1 1/4“
6000 psi
SAE 2“
3000 ps
SAE 1 1/4“
6000 psi
SAE 2 “
3000 psi
SAE 1 1/2“
6000 psi
SAE 2 1/2 “
3000 psi
Recommended pipe OD for drain lines
(lightweight version) [mm]
15 (5/8”) 18 (3/4”) 18 (3/4”) 22 (7/8“) 22 (7/8“) 22 (7/8“) 22 (7/8“)
Drain The drain line is to be routed so that the pump housing is always full of the pumped fluid. The pressure at
the drain port must not exceed 1 bar gauge pressure (2 bar absolute). The drain line to be piped directly
to tank without filter, cooler, check valve etc. and must terminate below the minimum fluid level.
Type of drive Direct drive with coupling (please inquire from your Moog contact for other types)
Ambient temperature range -15 °C to +60 °C
Max. speed at inlet pressure
0,8 bar abs. [min-1]
1 bar abs. [min-1]
2700
2900
2500
2900
1800
2100
2100
2300
1500
1800
1500
1800
1500
1800
Max speed for quiet running
[min-1]
1800 1800 1800 1800 1800 1800 1800
Min. inlet pressure suction connection 0.8 bar absolute
Max. housing pressure 2 bar (1 bar gauge pressure)
Medium pressure Continuous pressure
series max. pressure 1) [bar]
Pressure peak
High pressure Continuous pressure
series max. pressure 1) [bar]
Pressure peak
280
315
350
350
385
420
280
315
350
350
385
420
280
315
350
280
315
350
350
385
420
280
315
350
350
385
420
280
315
350
280
315
350
Hydraulic fluid Mineral oil to DIN 51 524
Hydraulic fluid temperature range -15 °C to +80 °C
Viscosity Allowable operational range 12 to 100 mm2/s (cSt); recommended 16 to 46 mm2/s (cSt)
Hydraulic fluid according to viscosity class ISO VG 46 or VG 32
Max. viscosity 500 mm2/s during start-up with electric motor at 1800 min-1
Filtering NAS 1638, class 9; ISO/DIN 4406, class 20/18/15; obtained with filter fineness of β20 = 75 2)

For special fluids e.g., HFA, HFC and emulsions the above pressure, viscosity and filtration parameters may be changed.
See the relevant special fluids catalogue for details.
1 ) Max. pressure to DIN 24 312
2 ) Dirt particles retention rate > 20 μm is 1: 75, i.e. 98,67 %
1000 psi = 70 bar
 
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