K3V112DT Pilot Pump for excavators spare parts

Short Description:

The K3V112DT pilot pump is a medium-heavy high-precision hydraulic gear pilot pump specially matched with K3V112DT series main piston pumps, widely applied to 20–24 ton medium-large excavators and mainstream engineering machinery hydraulic systems.

Send email to us

Product Detail

Product Tags

description

The K3V112DT pilot pump adopts upgraded medium-heavy reinforced gear pump structure, professionally optimized for the medium-high pressure, medium-large flow, long-term continuous operation and frequent variable-load switching characteristics of K3V112DT main pump supporting 20–24 ton medium-large excavators. Different from ordinary universal pilot pumps with poor medium-heavy load stability and easy internal leakage, this model strictly complies with original factory supporting standards, with fully standardized mounting dimensions and accurate hydraulic calibration parameters, achieving ultra-low internal leakage and linear stable flow-pressure output under long-term continuous operation. Equipped with high-hardness wear-resistant alloy gear pair, anti-fatigue reinforced bearing assembly and high-temperature high-pressure anti-aging composite sealing system, it can maintain stable pilot pressure output without attenuation under long-term cyclic hydraulic impact and high-intensity compound action switching. The integrated high-rigidity pump body features outstanding vibration resistance, dust resistance and sediment corrosion resistance, fully adapting to medium-heavy load construction environments such as earthwork, foundation excavation and municipal engineering.

product parameters

Product Model: K3V112DT Pilot Pump

Product Type: Medium-large Flow Negative Flow Control Medium-heavy Duty Hydraulic Gear Pilot Pump

Applicable Main Pump: K3V112DT Hydraulic Piston Main Pump

Applicable Equipment: 20–24 Ton Medium-large Excavators

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

Core Structure: High Hardness Wear-resistant Alloy Gear Set, Anti-fatigue Reinforced Bearing Assembly, High-pressure High-temperature Resistant Sealing System, Integrated High-rigidity Pump Body

Working Characteristics: Sensitive Pressure Response, Stable Idle & Medium-heavy Load Pressure, Low Vibration & Low Noise, Impact and Aging Resistant

Core Function: Provide Standard Stable Pilot Pressure, Drive K3V112DT Main Pump Variable Adjustment and Whole Machine Medium-heavy Load Compound Hydraulic Actions, Ensure Smooth and Powerful Operation

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

advantages

Precisely customized and calibrated for K3V112DT 20-ton class excavator negative flow hydraulic system, fully matching original factory installation dimensions and pilot pressure parameters, supporting 1:1 non-destructive plug-and-play replacement for 20–24 ton mainstream excavator models, no equipment modification required, 100% system matching with zero adaptation faults.
High-hardness alloy gear pair and reinforced anti-fatigue bearing structure significantly enhance wear resistance and structural stability, adapting to long-term continuous medium-heavy load operation and high-frequency variable-load switching of 20-ton class excavators, maintaining stable pilot pressure output without performance attenuation or operation fatigue.
Premium high-pressure and high-temperature resistant composite sealing system resists long-term hydraulic cyclic impact and extreme temperature changes, thoroughly eliminating oil leakage and system pressure loss under medium-heavy load working conditions, effectively reducing equipment failure rate and daily maintenance costs.
Integrated high-rigidity pump body delivers excellent vibration resistance, dust and sediment corrosion resistance, perfectly adapting to complex and harsh construction sites such as earthwork, foundation and municipal engineering, with service life far longer than ordinary universal medium-large pilot pumps.

FAQ

Q1: What are the common failure symptoms of K3V112DT pilot pump?
A: Typical faults include slow medium-heavy load operation response, weak boom/arm/bucket compound digging actions, unstable idle pilot pressure, walking jitter and deviation, sluggish swing rotation, insensitive main pump medium-heavy load variable adjustment, pump body oil leakage and abnormal operating noise under load.
Q2: Why do 20–24 ton excavators lack power after long medium-heavy load operation?A: Long-term continuous medium-heavy load operation and frequent load switching cause 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 output. Replacing the aging K3V112DT pilot pump can restore original medium-heavy load control performance and digging power.
Q3: How to maintain K3V112DT pilot pump daily?
A: Maintain high cleanliness of medium-large flow hydraulic system oil, regularly replace hydraulic oil and filter elements to prevent hard sediment and dust impurities from wearing internal precision components. Regularly inspect the pump body for oil leakage and abnormal load noise to ensure stable pilot pressure output and sensitive main pump variable operation.
Q4: How to extend the service life of K3V112DT pilot pump?
A: Avoid long-term continuous overload operation and frequent violent load impact, keep the hydraulic system clean, reduce wear and fatigue loss of internal components, and effectively extend the service life of the medium-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.