Gear Pump KFP5190-KP1013CRG Use for Wheel Loader Part

The specific content is as follows:
Based on the naming conventions of the KFP series double gear pumps and the model rules of the same series, the detailed analysis of the model is as follows: The meanings of each code segment of this model are decomposed
Code meaning
The KFP product series logo, the high-pressure gear pump series, includes various structural types such as single, double, and triple units, and is widely compatible with the hydraulic systems of engineering vehicles.
The core parameter code of the 5190 main pump, where “51” is the series group code, corresponding to the specifications of medium and large displacement engineering pumps. “90” represents the displacement grade of the main pump, which is suitable for the hydraulic flow requirements of medium and large-sized engineering vehicles.
The KP dual-pump structure marking indicates that the “-” is used to distinguish the main pump from the auxiliary pump unit, and “KP” represents the auxiliary pump module that is matched with it, suggesting that this product is not a single pump but a dual-gear pump structure of a main pump and an auxiliary pump, which can simultaneously provide two hydraulic outputs for the hydraulic system.
The 1013 auxiliary pump specification code corresponds to the displacement and suitable working condition parameters of the auxiliary pump. The displacement and pressure parameters of the auxiliary pump corresponding to this code have been optimized to match the output characteristics of the main pump 5190, ensuring the overall coordination of the operation of the dual pumps.
CRG configuration and interface coding: “C” indicates that the sealing structure is a high-pressure resistant composite seal. “R” indicates that the installation flange is a conventional right-angle flange. “G” indicates that the inlet and outlet interfaces are of British standard pipe thread specifications, which are compatible with the common hydraulic pipeline connection standards for engineering vehicles.
Product attributes
Specific parameters of the attribute category
Product type: High-pressure double gear pump
The core material of the pump body is high-strength cast iron, the gears are made of alloy steel and quenched, and the sealing parts are oil-resistant and high-pressure resistant composite rubber
Hydraulic systems suitable for scenarios such as loaders and forklifts in engineering vehicles
Rated pressure: 21-25MPa
Operating temperature range: -20℃ to 110℃
Structural form: Double pump (integrated structure of main pump and auxiliary pump)
Compatible medium: ISO 32-68 grade anti-wear hydraulic oil
Working principle: This product, as a double gear pump, follows the core working logic of gear pumps and features dual output channels. The specific process is as follows:
When the motor drives the pump shaft to rotate, it simultaneously drives the driving gears inside the main pump (KFP5190) and the auxiliary pump (KP1013) to rotate, and the driving gears mesh with the driven gears.
When the gears at the meshing point separate, the pump cavity volumes of the main and auxiliary pumps increase respectively, creating negative pressure, and the hydraulic oil is sucked into the two pump cavities through the common suction port.
The gears keep rotating, and the hydraulic oil encapsulated in the tooth grooves is conveyed to their respective oil pressure areas. At this time, the gears re-mesh, reducing the volume of the pump chamber, and the hydraulic oil is squeezed out under high pressure.
Ultimately, two channels of hydraulic oil are output through the respective oil outlets of the main and auxiliary pumps, respectively providing power for different hydraulic actuating components of engineering vehicles (such as the lifting mechanism and tilting mechanism of forklifts), meeting the requirements of multi-action synchronous operation of the equipment.
Product features
High pressure durability to adapt to working conditions: It adopts a cast iron pump body structure, which can stably withstand a high pressure of 21-25 mpa and has undergone strict durability tests. It is suitable for the harsh working conditions of frequent starts and stops and high-pressure operations of engineering vehicles, and is less likely to deform due to pressure fluctuations.
High dual-channel output efficiency: The dual-integrated design eliminates the need for additional pipeline splicing. The main and auxiliary pumps work in coordination to simultaneously supply energy to the two sets of hydraulic mechanisms, reducing pipeline losses in the hydraulic system and enhancing the overall hydraulic transmission efficiency, meeting the multi-action linkage requirements of the equipment.
Excellent low-temperature performance: This series of products has been optimized for low-temperature environments. Even in a low-temperature environment of -20 ℃, it can still maintain good oil absorption and oil transportation performance, and will not affect the start-up and operation of the pump due to the decrease in the fluidity of the hydraulic oil caused by too low oil temperature.
Strong adaptability: As a dedicated pump for engineering vehicles, its interface specifications and output parameters are highly compatible with the hydraulic systems of mainstream brand forklifts and loaders such as TCM and Toyota, and it can be compatible with various specifications of anti-wear hydraulic oil, demonstrating strong versatility.
Installation and Operation
Installation requirements: During installation, it is necessary to ensure that the coaxiality error between the main pump and the motor does not exceed 0.1mm to avoid gear wear caused by transmission deviation. The cast iron pump body is fixed with bolts. The installation surface should be flat and shock-absorbing gaskets should be added to reduce the vibration transmission during operation. The inlet and outlet pipelines of the main and auxiliary pumps need to be connected accordingly. Sealing gaskets should be installed at the interfaces and tightened to the specified torque to prevent oil leakage under high pressure. The installation location should avoid high-temperature components such as the vehicle engine and reserve sufficient space for heat dissipation.
Operating specifications: Before starting, the pump must be filled with hydraulic oil. Dry grinding start-up is strictly prohibited to prevent damage to gears and bearings. During the initial operation, it is necessary to run in without load for about 30 minutes, and then gradually load to the rated pressure. Regularly check the cleanliness of the hydraulic oil. It is recommended to control the contamination level to meet the NAS level 8 standard to avoid impurities wearing the gear tooth surface. If during operation, the oil temperature exceeds 110℃, abnormal noise or leakage is detected, the machine must be stopped immediately for inspection. Before long-term shutdown, the pump should be run without load for 5 minutes to drain the residual high-pressure oil in the pump and extend the service life of the sealing parts and gears.
The KFP series of products includes various types such as single-cab, double-cab, and triple-cab, which are suitable for different engineering vehicles. Common models are as follows:
Model: Features: Compatible with various scenarios
KFP2223CSBS: Single gear pump, small displacement specification: Hydraulic drive system for FG20-FG25N3
KFP2230CSBSJ: Single structure, strong interface adaptability: Hydraulic circuit for forklift lifting mechanism
KFP3228-KP2117AMSL: Double pump, with reasonable displacement matching between the main and auxiliary pumps: A compound action hydraulic system for forklifts
KFP5171-KP1009CHP: Double high-pressure type, with outstanding pressure resistance performance: Hydraulic system for forklifts
KFP5180-KP1013CBF: Its parameters are similar to those of KFP5190-KP1013CRG, but the sealing structure is slightly different. It features a dual hydraulic circuit for tilting and lifting of the loader
KFP4156-KRP4-14-12AMJ: Three-pump, three independent outputs: Multi-action hydraulic system for large-scale engineering equipment