PRODUCT DESCRIPTION

Variable Displacement Hydraulic Piston Pump A4PVFO Series – High Efficiency Open Circuit Pump

The A4PVFO series hydraulic piston pump is a variable-displacement, high-pressure hydraulic unit built for continuous heavy-load operation. It adopts reinforced friction pairs and optimized flow distribution design to resist abrasion and impact loads. Advanced sealing assembly effectively reduces internal leakage and maintains steady flow output under fluctuating working pressure. Compact body structure supports flexible layout on construction machinery. Wear components can be independently replaced to lower maintenance costs. This reliable pump stabilizes system performance, reduces equipment downtime, and suits demanding open-circuit hydraulic systems for engineering vehicles and mobile machinery.

A4PVFO Series Description

Heavy-duty variable displacement piston pump for mobile hydraulic systems. Constructed with high-strength cylinder block, wear-resistant valve plate and premium sealing kits. Direct interchangeable installation saves assembly time. Delivers precise adjustable flow and stable pressure output under harsh working conditions. Strict pressure cycling testing ensures dependable long-term operation.

A4PVFO core parameters

Variable displacement hydraulic piston pump of A4PVFO series. High-strength alloy piston and anti-wear bronze valve plate greatly extend service life. Precision ground cylinder block minimizes friction loss and internal leakage. Adjustable displacement realizes energy-saving operation. Robust housing adapts to severe working environments. Interchangeable replacement unit with convenient installation. Widely applied in excavators, loaders and other mobile construction equipment.

Company Profile

Runhe Hydraulics is a professional manufacturer of premium hydraulic equipment. We supply high-strength hydraulic cylinders, hydraulic motors and hydraulic pumps for excavators, featuring stable performance and precise stroke control. Our extensive product lineup covers diverse specifications, and our hydraulic pumps are interchangeable with equivalent models from leading brands including Parker, Rexroth and Danfoss. We accept OEM customization, and deliver worldwide shipping alongside dedicated after-sales support for complete excavator hydraulic systems.

The following products are available for sale

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A10VO28DFR1/31

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