BPV35 Linde Hydraulic Variable Piston Pump 420bar Closed Loop

Product Overview

The BPV series comprises Linde (or equivalent) variable-displacement axial piston pumps designed for closed-loop hydrostatic transmissions. Available in sizes BPV35, BPV50, BPV70, BPV100, BPV200 and BPV200-01R (example code 2559 H2X517B00071). Features infinitely variable displacement, integral boost pump and multiple control options (hydraulic remote, electric, manual). Manufactured to exact OEM dimensions and interfaces for 100% drop-in interchangeability. Every unit undergoes 100% simulated operating-condition testing to verify pressure, flow and sealing integrity under high-pressure mobile and industrial demands.

Technical Specifications 

• Models: BPV35 / BPV50 / BPV70 / BPV100 / BPV200 / BPV200-01R (example: 2559 H2X517B00071)
• Pump Type: Variable displacement axial piston pump (closed circuit)
• Geometric displacement: approx. 34.9 cm³/rev (BPV35), 50.8 cm³/rev (BPV50), 70.9 cm³/rev (BPV70), 100.3 cm³/rev (BPV100), 200 cm³/rev (BPV200)
• Peak pressure: up to 500 bar
• Maximum working pressure: 420 bar
• Continuous working pressure: 250 bar
• Maximum continuous speed: 3700 rpm (BPV35), 3500 rpm (BPV50), 3300 rpm (BPV70), 3100 rpm (BPV100)
• Control methods: Hydraulic remote (H), electric (E), manual (K), automotive (A), etc.
• Integral boost pump: Standard
• Mounting: SAE C/D/E flange (depending on size)
• Other: Through-drive (PTO) capability, clockwise or counter-clockwise rotation

(Data sourced from official Linde BPV series model codes and technical documentation; theoretical values without efficiency losses.)

Key Technical Advantages

• Precision swashplate and piston-shoe design: High-wear-resistant materials and tight-tolerance machining deliver high volumetric efficiency and minimal internal leakage even in high-pressure closed circuits.
• Integral boost pump and cold-start valve: Optimized charge and starting performance reduce external components while improving system reliability and response.
• Multiple control options and long-life bearings: Supports hydraulic, electric and manual controls; heavy-duty bearings extend service life under continuous high-pressure operation.
• 100% drop-in interchangeability and simulated testing: Mounting flange, shaft end and ports match OEM exactly; full duty-cycle validation before shipment ensures sealing integrity and performance, minimizing downtime.

Application Areas

Closed-loop hydrostatic transmission systems in construction machinery (excavators, loaders, dozers), agricultural equipment, forestry machines, material-handling vehicles, marine propulsion and industrial hydraulic drives requiring bidirectional stepless speed control under high pressure.

Expert Maintenance Tips

Clean ports and drive shaft thoroughly before installation. Use hydraulic oil suitable for closed-loop systems and verify cleanliness. Maintain charge pressure and case pressure within allowable limits. Fill the case with oil before first start-up and run at low speed under no load to check for abnormal noise or leakage. Regularly monitor filters and oil temperature; avoid prolonged over-pressure or cavitation. Perform pressure and flow verification tests according to the official manual.