HPV091DS Pilot Pump for excavators spare parts

Short Description:

The HPV091DS pilot pump is a dedicated high-precision hydraulic gear pilot pump perfectly matched with HPV091DS series main pumps, widely applicable to 20–25 ton medium and large excavators including Hyundai R210, R215, R225 and other mainstream engineering equipment.

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Product Detail

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description

The HPV091DS pilot pump adopts upgraded reinforced heavy-duty gear pump structure, professionally optimized for the medium-high pressure, medium-large flow and long-term continuous variable-load operation characteristics of HPV091DS main pump supporting excavators. Different from ordinary universal pilot pumps with poor matching accuracy and easy pressure attenuation, this model strictly follows the original factory supporting standards of HPV091DS main pump, with precise installation dimensions and fully matched hydraulic parameters, ultra-low internal leakage and linear stable flow-pressure output under continuous load. Equipped with high-hardness wear-resistant alloy gear pair, reinforced anti-fatigue bearing assembly and high-temperature aging-resistant composite sealing system, it can maintain stable pilot pressure output without attenuation under long-term cyclic hydraulic impact and high-frequency compound action switching. The high-rigidity integral pump body has excellent vibration resistance, dust resistance and sediment erosion resistance, perfectly adapting to earthwork construction, municipal engineering, road renovation and medium-heavy load continuous operation scenarios.

product parameters

Product Model: HPV091DS Pilot Pump

Product Type: Medium-high Pressure Positive Flow Control Hydraulic Gear Pilot Pump

Applicable Main Pump: HPV091DS Hydraulic Main Pump

Applicable Equipment: Hyundai R210/R215/R225, 20–25 Ton Medium and Large Excavators

Structural Feature: Low Flow Pulsation, Constant Pressure Output, Ultra-low Internal Leakage, Reinforced Wear-resistant Structure

Core Structure: High-hardness Alloy Gear Set, Anti-fatigue Bearing Assembly, High-temperature Pressure-resistant Sealing System, Integral High-rigidity Pump Body

Applicable Working Conditions: Earthwork Construction, Municipal Engineering, Road Renovation, Long-term Medium-heavy Load Continuous Operation

Supporting Matching Parts: HPV091DS Main Pump, Medium-large Flow Main Control Valve, Pilot Valve Group, Precision Hydraulic Filter and Supporting Pipeline

advantages

Specially customized and calibrated for HPV091DS positive flow hydraulic system, perfectly matching original installation size and pilot pressure parameters, supporting 1:1 non-destructive plug-and-play replacement without equipment modification, with 100% system matching degree and zero adaptation faults.
Adopting low-pulsation constant-pressure output technology, it effectively avoids pilot pressure fluctuation and pressure drop caused by long-term medium-heavy load continuous operation and frequent load switching, thoroughly solving common problems such as slow response, weak operation and jitter of 20–25 ton excavators.
High-hardness alloy gear pair and reinforced bearing structure greatly improve wear resistance and structural stability, adapt to long-term continuous operation and high-frequency variable-load switching of medium and large excavators, and maintain long-term stable pilot pressure output without attenuation.
High-quality anti-aging and high-temperature resistant sealing system resists long-term hydraulic cyclic impact and temperature changes, completely eliminates oil leakage and system pressure failure, and effectively reduces equipment failure rate and daily maintenance costs.

FAQ

Q1: What are the common failure symptoms of HPV091DS pilot pump?
A: Typical faults include delayed operation response, weak boom/arm/bucket compound actions, unstable idle pilot pressure, walking jitter and deviation, unsmooth swing actions, slow main pump variable response, pump body oil leakage and abnormal operating noise.
Q2: Why does the 20–25 ton excavator become sluggish after long working hours?
A: Long-term medium-heavy load continuous operation causes wear of internal gears and bearings of the pilot pump, increased internal leakage and decreased pilot pressure, resulting in insensitive main pump variable adjustment and weak hydraulic actions. Replacing the aging HPV091DS pilot pump can restore original control performance.
Q3: How to maintain HPV091DS pilot pump daily?
A: Keep hydraulic oil clean, replace hydraulic oil and filter elements regularly to prevent hard impurities from wearing precision gear components. Regularly check the pump body for oil leakage and abnormal noise to ensure stable pilot pressure output and normal main pump variable operation.
Q4: How to extend the service life of HPV091DS pilot pump?
A: Avoid long-term extreme overload operation and frequent sudden load impact, maintain the cleanliness of the hydraulic system, reduce internal component wear and fatigue loss, and effectively extend the service life of the 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.