Directional spool valves, pilot operated, with electro-hydraulic actuation LS 1376

Description

• Size 62
• Component series 1X
• Maximum operating pressure 250 bar
• Maximum flow 1500 l/min

Features

• 6/2 directional design
• For subplate mounting
• Wet-pin DC solenoid
• Electrical connection as individual connection
• Manual override
• Spool position monitoring

Product description

Valve type LS 1376 is a directional spool valve with electro-hydraulic actuation. It controls the start, stop and direction of a flow.

The directional valve basically consists of the main valve with housing (1), the main control spool (2), the compression springs (3), as well as the pilot control valve (4) with solenoid (5). The spring chamber (6) is internally connected to port PT. The pilot control valve (4) is externally supplied with pilot oil via channel Y and supplies the control chamber of the control spool (7).

The main control spool (2) is held in spool position “b” by the pressurization of the two front faces with identical pilot pressure. In this spool position, the control spool (7) rests on the housing and fixes the position of the main control spool (2). Pressure relief of the control spool (7) area brings the main control spool (2) into spool position “a”. Via the pilot control valve (4), the unloaded area of the control spool (7) internally displaces the returning pilot oil into channel T.

Upon actuation of the pilot control valve (4) via the solenoid (5), the control spool (7) and thus the main control spool (2) is displaced to the left.

The manual override (8) at the pilot control valve (4) allows for an active opening of the seat poppet without solenoid energization.

Notes:

With this valve, the compression springs (3) do not have a reset function. In the depressurized condition and with horizontal installation, they hold the main control spool (2) in the basic position.

When determining the minimum pilot pressure, the pressure in the tank line is to be considered.

Type code

Technical data

(For applications outside these values, please consult us!)

general

hydraulic

electrical

When establishing the electrical connection, the protective grounding conductor (PE) must be connected correctly.

Notice:

For additional technical data refer to data sheet 22045

Diagrams/characteristic curves

(measured with HLP46, ϑOil = 40 °C ± 5 °C)

Δp-qV characteristic curves

Symbols/Circuit diagrams

Dimensions

Dimensions in mm

Required surface quality of the valve contact surface

Valve mounting screws (separate order)

8 hexagon socket head cap screws ISO 4762 - M24 x 120 - 10.9-flZn-240h-L

(friction coefficient μtotal = 0.09 to 0.14);

Tightening torque MA = 760 Nm ±10%,

material no. R913000522

Notice:

The dimensions are nominal dimensions which are subject to tolerances.

Ordering codes

Downloads

Directional spool valves, pilot operated, with electro-hydraulic actuation Data Sheet | RE24781 | 2015-05-01 | English | PDF | 592k Product Groups: Pilot operated Type LS 1376