closed loop operation.

control device modular design, precise and load- hydrostatic bearing piston-slipper assembly monoshell for high rigidity valve plate housing highly integrated control piston integrated, hydraulically captured through shaft cylinder barrel integrated pressure relief valves for system and charge pressure Design characteristics >> axial piston pump in swashplate design for high pressure closed loop systems >> clockwise or counter clockwise rotation >> exact and rugged servo control devices (mechanical, hydraulic, electro-hydraulic) >> integrated high pressure relief valves with make-up function...

Linde Hydraulics product range Find the right products for your application. Product range Linde product name Valve Technology Self-regulating pump Variable pump Variable motor Regulating motor Fixed motor Electronic control unit Peripheral eguipment open loop operation closed loop operation closed and open loop operation closed and open loop operation closed and open loop operation open loop operation closed and open loop operation open loop operation open loop operation closed and open loop operation closed and open loop operation General technical data Operational parameters Life time recommendations...

Representation of the hydraulic components of a closed loop hydrostatic drive: Variable electro-hydraulic controlled pump HPV-02 E1 (top view) and fixed displacement motor HMF-02 plus filter, cooler and oil tank. The function diagram and the circuit diagram show two types of cooling. Function diagram Option 1: Cooler in charge Option 2: Cooler in return line Circuit diagram The boost pump is shown with internal and external suction. Standard Linde name plate Each Linde Hydraulics unit features a name plate showing the type and the serial number. For a single order via 'open variant' a customer-specific...

General technical data. The table shows the complete capacity range of the pumps, while the diagram below shows the recommended practical range for the different nominal sizes of the HPV-02 pump with control limit between 200 bar Apmjn and 280 bar Apmax. It enables initial selection of the reguired nominal pump size. Overview of technical data Recommended operating range of HPV-02

Operational parameters. Life time recommendations 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-guality hydraulic fluid. Beneficial conditions for long service life >> Speed lower continuous maximum speed >> Operating pressure less than 300 bar Ap on average >> Max. pressure only at reduced displacement >> Power continuous power or lower >> Purity of fluid 18/16/13 in ac. with...

Operational parameters. Pressure Fluids and mounting orientation In order to ensure the functional performance and high efficiency of the hydraulic pumps the viscosity and purity of the operating fluid should meet the different operational reguirements. Linde recommends using only hydraulic fluids which are confirmed by the manufacturer as suitable for use in high pressure hydraulic installations or approved by the original eguipment manufacturer. Permitted pressure fluids >> biodegradable fluids in accordance with ISO 15 380 on reguest >> other pressure fluids on reguest Linde offers an oil...

Torque transmission. Depending on the selected components, different torques may be transferred. Please ensure that the load transfer components such as mounting flange, PTO-through shaft and additional pumps are designed adequately. Our sales engineers will be pleased to provide design advice. This shows the input side (A) und PTO-/output side (B) of a HPV-02 pump. The information on the following pages refers to >> mounting flange and drive shaft (A) » PTO flange and through shaft (B). Bolt hole diameter Bolt hole length

Torque transmission. Mounting flange *) Option for standard design, necessary for tandem units with 4 additional threaded holes with 4 additional bolt holes

Torque transmission. Drive shaft A) Dimensions ANSI and SAE drive shafts *) Recommended for tandem configurations A) Maximum input torque A) Linde Hydraulics shaft types Type 1. Without undercut Type 2. With undercut Usable spline length Excess length Usable spline Excess length

Torque transmission. PTO flange Linde pumps can be combined into tandem and multiple pumps. The combination options are determined by the permitted transfer torque. The following data refers to the PTO (pump output side, without further attachments). B) Output shaft transfer torque Torque transmission. Output shaft

Gear pumps. Two types of gear pumps are available: internal gear pump IGP and external gear pump EG P. The possible combinations of and with IGP and EGP are determined by the PTO option and the permitted shaft torgue. Both types can be used as charge pump for the main circuit or the control and cooling circuit. The allowable pressure at the suction port is between 0.8 bar (abs.) and 3.0 bar (abs.). The charge pressure relief valves for the rated sizes 55-135 are integrated in the port plate housing, and for the rated sizes 165-280 in the charge pressure manifold of the HPV-02. Technical data...

Gear pumps. The IGP charge pumps include a cold start relief valve and a through drive for attaching additional pumps. The suction can be internal, external or combined. IGP types are available in rated sizes of 16 cc/rev and 22.5 cc/rev Internal gear pump IGP with internal suction Internal suction External suction Combined suction The charge pump supplies the main circuit with oil from the pump housing. External connection B is closed. External suction The charge pump supplies the main circuit with oil from the oil tank. Ther internal connection is closed. The charge pump supplies the main circuit...