HPVO102 Pilot Pump for excavators spare parts

Short Description:

The HPVO102 pilot pump is a high-precision dedicated hydraulic gear pilot pump perfectly matched with HPVO102 series main piston pumps, widely applicable to 20–25 ton medium and large excavators and supporting engineering machinery hydraulic systems.

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description

The HPVO102 pilot pump adopts heavy-duty reinforced thickened gear pump structure, professionally optimized for the medium-high pressure, large-flow, long-term heavy-load continuous operation and high-frequency variable-load switching characteristics of HPVO102 main pump supporting 20–25 ton large excavators. Different from ordinary universal pilot pumps with insufficient heavy-load pressure resistance and easy internal leakage and pressure drop, this model strictly follows original factory supporting standards, with standardized installation dimensions and fully matched hydraulic calibration parameters, ultra-low internal leakage and linear stable flow-pressure output under long-term heavy-load continuous operation. Equipped with super wear-resistant high-hardness alloy gear pair, heavy-duty anti-fatigue reinforced bearing assembly and high-temperature and high-pressure resistant aging-free composite sealing system, it can maintain stable pilot pressure output without attenuation or failure under long-term severe hydraulic impact and high-intensity compound action switching. The thickened integral high-rigidity pump body has super strong vibration resistance, dust resistance and sediment corrosion resistance, perfectly adapting to heavy earthwork, mountain excavation, foundation engineering and other harsh heavy-load construction environments.

product parameters

Product Model: HPVO102 Pilot Pump

Product Type: Large Flow Negative Flow Control Heavy-duty Precision Hydraulic Gear Pilot Pump

Applicable Main Pump: HPVO102 Hydraulic Piston Main Pump

Applicable Equipment: 20–25 Ton Large Excavators

Structural Feature: Ultra-low Flow Pulsation, Heavy-load Constant Pressure Output, Ultra-low Internal Leakage, Thickened Reinforced Heavy-duty Structure

Core Structure: Super Wear-resistant High-hardness Alloy Gear Set, Heavy-duty Anti-fatigue Bearing Assembly, High-pressure High-temperature Resistant Sealing System, Thickened Integral High-rigidity Pump Body

Working Characteristics: Ultra-fast Pressure Response, Stable Idle & Heavy-load Pressure, Low Vibration & Low Noise, Impact and Aging Resistant

Supporting Matching Parts: HPVO102 Main Pump, Large-flow Main Control Valve, Negative Flow Pilot Valve Group, High-precision Hydraulic Filter and Supporting Pipeline

advantages

Specially customized and calibrated for HPVO102 large excavator negative flow hydraulic system, perfectly matching original factory installation size and heavy-load pilot pressure parameters, supporting 1:1 non-destructive plug-and-play replacement for 20–25 ton large excavators, no equipment modification required, with 100% system matching degree and zero adaptation faults.
Adopting large-flow low-pulsation constant-pressure output technology, it effectively suppresses pilot pressure fluctuation and pressure drop caused by long-term heavy-load continuous operation and high-intensity compound action switching, thoroughly solving common problems such as slow heavy-load response, weak digging power and walking jitter of 20–25 ton large excavators in heavy earthwork construction.
Super wear-resistant high-hardness alloy gear pair and heavy-duty reinforced bearing structure greatly improve heavy-load impact resistance and structural stability, adapt to long-term high-intensity variable-load operation of large excavators, and maintain long-term stable pilot pressure output without performance attenuation or operation weakness.
High-grade high-pressure and high-temperature resistant composite sealing system resists long-term severe hydraulic cyclic impact and extreme temperature changes, completely eliminates oil leakage and system pressure loss under heavy-load working conditions, and effectively reduces failure rate and heavy-load maintenance costs of large hydraulic equipment.
Precision large-flow hydraulic matching design achieves accurate linkage with HPVO102 main pump variable mechanism, significantly improves main pump heavy-load power regulation sensitivity and whole machine operation stability, and effectively enhances heavy-load construction efficiency and fuel economy of 20–25 ton large excavators.

FAQ

Q1: What are the common failure symptoms of HPVO102 pilot pump?
A: Typical faults include slow heavy-load operation response, weak boom/arm/bucket digging compound actions, unstable idle pilot pressure, walking jitter and deviation, unsmooth swing rotation, insensitive main pump heavy-load variable adjustment, pump body oil leakage and abnormal operating noise under load.
Q2: Why do 20–25 ton large excavators lack digging power after long heavy-load operation?
A: Long-term high-intensity heavy-load operation causes wear of internal precision gears and bearings of the pilot pump, increased internal leakage and decreased pilot pressure, resulting in delayed main pump variable response and insufficient hydraulic power. Replacing the aging HPVO102 pilot pump can restore the original heavy-load control performance and digging power.
Q3: How to maintain HPVO102 pilot pump daily?
A: Keep the large-flow hydraulic system oil highly clean, regularly replace high-precision hydraulic oil and filter elements to prevent hard sediment impurities from wearing internal precision components. Regularly check the pump body for oil leakage and abnormal load noise to ensure stable heavy-load pilot pressure output and sensitive main pump variable operation.
Q4: How to extend the service life of HPVO102 pilot pump?
A: Avoid long-term extreme overload operation and frequent violent load impact, maintain the cleanliness of the hydraulic system, reduce wear and fatigue loss of internal heavy-load components, and effectively extend the service life of the heavy-duty pilot pump.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.