Linde HPV-02 Variable pumps for closed circuit operation

Representation of the hydraulic components of a closed-loop hydrostatic drive: Variable electro-hydraulic controlled pump HPV-02 E1 and fixed displacement motor HMF-02 plus filter, cooler, and oil tank. The function diagram and the circuit diagram show two types of cooling.

Linde high-pressure units are designed for excellent reliability and long service life. The actual service life of a hydraulic unit is determined by numerous factors. It can be extended significantly through proper maintenance of the hydraulic system and by using high-quality hydraulic fluid.

In order to guarantee long-term proper function and high efficiency of the hydraulic pumps, the purity of the pressure fluid must comply with the following criteria according to Linde Works Standard WN 51 210. High purity oil can extend the service time of the hydraulic system significantly.

Units of the HPV-02 series can be equipped with a pure charge pressure manifold or with a combined charge pressure and filter flange manifold. The following filter sizes are available, depending on the rated size of the unit. For further details about the mounting of the charge, pressure manifold sees section "Dimensions. Modular System"

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Features

Design Characteristics

• axial piston pump in swashplate design for high-pressure closed-loop systems
• clockwise or counterclockwise rotation
• exact and rugged servo control devices (mechanical, hydraulic, electro-hydraulic)
• integrated high-pressure relief valves with make-up function
• integrated low-pressure relief valves for boost, control, and cooler circuits
• replaceable cartridge filter
• SAE high-pressure ports
• SAE mounting flange with ANSI or SAE spline shaft
• through shaft SAE A, B, B-B, and C
• charge pressure pumps for internal and external suction, integrated cold start relief valve optional
• optional tandem and multiple pumps

Product Advantages

• compact design
• high power density
• dynamic response
• high reliability
• long service life
• noise-optimized
• precise and load-independent

Technical Data

HPV-02		55	75	105	135	165	210	280
Max. displacement	cc/rev	54.7	75.9	105	135.7	165.6	210.1	281.9
Max. operating speed	rpm	3900	3400	3200	3000	2750	2300	2400
Max. speed*	rpm	4150	3600	3400	3200	2950	2500	2550
Nominal pressure	bar	450	450	450	450	450	450	450
Max. pressure**	bar	500	500	500	500	500	500	500
Torque (Δp=430 bar; charge pressure=20 bar)	Nm	374	519	719	929	1133	1438	1929
Corner power	KW	153	185	241	292	326	346	485
Weight approx. (with H1 control, without oil)***	kg	46	49	66	72	113	132	164
*highest transient speed, that can temporarily occur **highest transient pressure, that can temporarily occur ***inclusive internal gear pump (size 55-135) or external gear pump (size 165-280)

Download Datasheet: Linde HPV-02 Variable pumps for closed circuit operation

Reference: linde-hydraulics.com