PLATA [LVP 04 T A ]
56Pages

Headquarters: CASAPPA S.p.A. Via Balestrieri, 1 43044 Lemignano di Collecchio Parma (Italy) Tel. (+39) 0521 30 41 11 Fax (+39) 0521 80 46 00 IP Videoconferencing E-mail: info@casappa.com www.casappa.com VARIABLE DISPLACEMENT AXIAL PISTON PUMPS LVP SERIES

INDEX Page Modification from former edition.

Variable displacement axial piston pumps with swash plate design. LVP pumps are ideally suited for medium and high pressure open circuit applications. They are available with a wide range of control options to regulate the pumps displacement. The drive shaft is designed for both radial and axial loads. The pumps are also available with a through drive option to have multiple pumps able to supply several hydraulic systems. TIPICAL APPLICATIONS • Wheel Loaders-Backhoe Loaders • Midi-Excavators • Asphalt Pavers • Telehandlers • Windmills-Green Energy • Hydraulic Presses • Hydraulic Power...

DIRECTION OF ROTATION Clockwise or anti-clockwise defined looking at the drive shaft. HYDRAULIC FLUID Mineral oil based hydraulic fluid conforming to DIN 51524, fire resistant fluids and biodegradable fluids according to the technical data shown in the tables at pages 4 -e 6. The system should be designed to prevent aeration of the hydraulic fluid. FLUID VISCOSITY The fluid viscosity range for optimal use of LVP pump is between 15 and 35 cSt (77 and 163 SSU). Functional limit conditions are: max.: 1500 cSt (6818 SSU) at start up at -25 °C (-13 °F) with straight and short inlet line. min.:...

MOUNTING POSITIONS Standard pump is supplied with the D2 drain hole open and D1 plugged. Before installation fill the pump with hydraulic oil for at least 3/4 of the volume keeping it in horizzontal position. The pump can be mounted in a horizontal or vertical position. The highest of the case drain ports must be used to keep the required filling oil. If D2 is not the highest drain port it must be closed by moving the plug from D1 hole chosen for the drain line. The pump can be located above the oil level if the absolute pressure at the inlet port stays within the stated limits. With...

3 CASAPPA FLUID POWER DESIGN (1) = with an inlet pressure of 1 bar abs (14.5 psi). Reducing the displacement or increasing the inlet pressure the max. speed change. See table at page 7 For different working conditions, please consult our technical sales department.

FLUID POWER DESIGN TECHNICAL DATATechnical data restrictions with fire resistant fluid O (1) = with an inlet pressure of 1 bar abs (14.5 psi). Pump type

(1) = with an inlet pressure of 1 bar abs (14.5 psi).

Design calculations for pump O 04/04.2013 Replaces: 03/01.2007 nhm= nhm (V, Ap, n) Hydro-mechanical efficiency Max. permissible load on drive shaft Pump type Frad Radial force % Variation of the max. speed in relation of the inlet pressure and/or displacement reduction Inlet pressure Example 1 Displacement: 100 % Speed: 100 % Inlet pressure: 1,0 bar abs. (14.5 psi) Example 2 Displacement: 80 % Inlet pressure: 1,0 bar abs. (14.5 psi) Speed: 115 %

E: Max. displacement limiter F: Min. displacement limiter G: Min. and Max. displacement limiter Max. displacement setting range cm3/rev (in3/rev) Min. displacement setting range cm3/rev (in3/rev) One turn of screw changes pump displacement by approximately cm3/rev (in3/rev) from to from to E F Setting ranges with standard limiter. For different setting ranges, please consult our technical sales department. L |NT mm (in) values at page 41 For single pumps refer to ori L CG2 values Values shown in the table are indicative only. For real values please consult our technical sales...

OPERATING CURVES Each curve has been obtained at 50 °C (122 °F), using oil with viscosity 46 cSt (210 SSU) at 40 °C (104 °F) and at these speed: (1) 1500 min-1 (2) 1800 min-1 O (3) 3000 min-1 Delivery / power Noise level Distance from microphone to pump = 1 m (39.37 in) Overall efficiency Volumetric efficiency Values shown in the diagrams are indicative only. Actual values may vary depending on the pump configuration. DCAT037-001 ID02

OPERATING CURVES Each curve has been obtained at 50 °C (122 °F), using oil with viscosity 46 cSt (210 SSU) at 40 °C (104 °F) and at these speed: (1) 1500 min-1 (2) 1800 min-1 O (3) 2600 min-1 Noise level Delivery / power Distance from microphone to pump = 1 m (39.37 in) Overall efficiency Volumetric efficiency Values shown in the diagrams are indicative only. Actual values may vary depending on the pump configuration. 10

Delivery / power @ max. displacement Noise level Distance from microphone to pump = 1 m (39.37 in) - @ max. displacement---@ min. displacement Overall efficiency @ max. displacement Volumetric efficiency @ max. displacement Values shown in the diagrams are indicative only. Actual values may vary depending on the pump configuration.

Each curve has been obtained at 50 °C (122 °F), using oil with viscosity 46 cSt (210 SSU) at 40 °C (104 °F) and at these speed: (1) 1500 min-1 Delivery / power @ max. displacement Noise level Distance from microphone to pump = 1 m (39.37 in) - @ max. displacement---@ min. displacement Volumetric efficiency @ max. displacement Overall efficiency @ max. displacement Values shown in the diagrams are indicative only. Actual values may vary depending on the pump configuration.

,VP FLUID POWER DESIGN LV P Drive shafts: page 19 * 20 Mounting flanges: page 21 * 22 Screws tightening torque Nm (Ibf in) Ports (nominal size)

IVP FLUID POWER DESIGN LV P Drive shafts: page 19 4- 20 Mounting flanges: page 21 4 22 O 04/04.2013 Replaces: 03/01.2007 Screws tightening torque Nm (lbf in) Ports (nominal size)

,VP FLUID POWER DESIGN LV P Drive shafts: page 19 * 20 Mounting flanges: page 21 * 22 Screws tightening torque Nm (Ibf in) Ports (nominal size)

IVP FLUID POWER DESIGN LV P Drive shafts: page 19 4- 20 Mounting flanges: page 21 4 22 Screws tightening torque Nm (lbf in) Ports (nominal size)