705-41-08090 7054108090 705-41-01620 20T-60-00400 excavator parts PC40-7 PC40R-7 PC40T-7 PC50UU-2 hydraulic gear pump pilot pump

705-41-08090 7054108090 705-41-01620 20T-60-00400 excavator parts PC40-7 PC40R-7 PC40T-7 PC50UU-2 hydraulic gear pump pilot pump

Product Description

The hydraulic pump pilot pump of the GVO brand for the main pump of the Komatsu PC40-7 PC40R-7 PC40T-7 PC50UU-2 excavators is suitable for various types of hydraulic components.
High-quality pilot pump, directly sold by the manufacturer without any middlemen profiting from the price difference. Adequate inventory ensures prompt delivery, and the after-sales service is reliable.

Product Description

This precision relief valve is specifically designed to be compatible with PC40-7, PC40R-7, PC40T-7, and PC50UU-2 various mini excavators. It is an indispensable pressure safety control component inside the multi-way distribution valve of small excavators, regulating the maximum working oil pressure of the entire hydraulic system and undertaking the core responsibility of overloading pressure relief protection for the entire hydraulic system. Most 4-5 ton mini excavators are used in indoor demolition, garden renovation, municipal narrow road pipeline construction, rural foundation excavation, and basement narrow space operations. The working site has narrow space and a lot of debris, sand, and stones. During operations such as bucket digging hard soil, rapid extension of the small arm, and operation of the impact hammer, the oil circuit often experiences instantaneous high-pressure impacts.

The valve body is made by casting high-strength aluminum alloy as a whole. The valve core, pressure regulating spring, pressure-bearing base, and the entire set of sealing components are all precisely processed according to the original factory component parameters. The four-corner bolt installation holes, center spline shaft, oil inlet and outlet ports, and sealing groove dimensions are fully matched with the valve seat of the PC40-7 standard version, PC40R-7 wheeled model, PC40T-7 tracked model, and PC50UU-2 tailless compact excavator multi-way valve. The processing tolerance of the components is precise and rigorous. The installation holes are completely aligned with the original vehicle base, and during maintenance and disassembly, old parts can be directly replaced without grinding the valve body or modifying the pipe hole. This greatly saves the cumbersome assembly, debugging, and disassembly time in the compact cabin of the mini excavator.

The valve body has undergone pressure strengthening treatment. The valve core is made by quenching alloy steel and then multi-layer mirror polishing. It is combined with a rubber sealing component that is resistant to high temperature, wear, and oil corrosion. It can withstand long-term exposure to high-temperature hydraulic oil and resist valve core damage caused by sand and metal debris in the oil. Even if the equipment operates under a sealed and narrow environment with high load for a long time, the valve core can still respond sensitively to opening and closing, and is less likely to have common problems such as valve body leakage, pressure deviation, or valve core jamming and pressure relief. It can adapt to the high-intensity and non-stop operation of small excavators for a long time.

Company Introduction

The GVO brand is a manufacturer of hydraulic components. We mainly produce the most comprehensive range of pilot pumps, gear pumps, relief valves, hydraulic pumps, electrical components, hydraulic parts, engine assemblies, traveling assemblies, rotating assemblies, distribution valves, and other components.

We are factory direct sellers without any middlemen profiting from price differences. The quality is definitely the best for you because we are the ones who produce them. We cannot tarnish our reputation. The prices are also the most favorable for you. There is a stable delivery speed.

We value every customer and provide you with the best service. We offer pre-sale, in-sale, and after-sale guarantees. Any problems will definitely be resolved for you. We are always available to serve you.