Description Size 6, 10 Component series 2X Maximum operating pressure 315 bar Maximum flow 75 l/min Features Direct operated proportional directional valve, without electrical position feedback, with integrated electronics (OBE) Control of the direction and magnitude of a flow Operation by means of proportional solenoids with central thread and detachable coil For subplate mounting: Porting pattern according to ISO 4401 Spring-centered control spool Product description The 4/2 and 4/3 proportional directional valves are designed as direct operated devices in plate design. Operation by means of proportional solenoids with central thread and detachable coil. The solenoids are controlled via integrated electronics. Set-up: The valve basically consists of: Housing (1) with connection surface Control spool (2) with compression springs (3 and 4) Solenoids (5 and 6) with central thread Integrated electronics (7) With de-energized solenoids (5 and 6), central position of the control spool (2) due to compression springs (3 and 4) Direct actuation of the control spool (2) by energization of one proportional solenoid, e. g. energization of solenoid "b" (6) Control spool (2) is moved to the left in proportion to the electrical input signal Connection from P to A and B to T via orifice-type cross-sections with progressive flow characteristics Switching off of the solenoid (6) Control spool (2) is returned to the central position by the compression spring (3) Function: Valve with two spool positions (type 4WRA...A...): The function of this valve version basically corresponds to the valve with three spool positions. This 2 spool position valve is, however, only equipped with solenoid “a”. Instead of the 2nd proportional solenoid, there is a plug screw (8.1) with NG 6 or a cover (8.2) with NG10. Notice: The tank line must not be allowed to run empty. With corresponding installation conditions, a preload valve (preload pressure approx. 2 bar) must be installed. Type code 01 02 03 04 05 06 07 08 09 10 11 12 4 WRAE ‒ 2X / G24 / * 01 4 main ports 4 02 Proportional directional valve with integrated electronics WRAE 03 Size 6 6 Size 10 10 04 Symbols; for the possible version, see "Symbols/Circuit diagrams" E; E1-; W; W1-; EA; WA Rated flow NG6 05 7 l/min 7 15 l/min 15 30 l/min 30 Rated flow NG10 05 30 l/min 30 60 l/min 60 06 Component series 20 ... 29 (20 ... 29: unchanged installation and connection dimensions) 2X 07 Supply voltage 24 V G24 Special type of protection 08 Without special type of protection no code Sea water-resistant J 1) Electrical connection 09 Connector DIN EN 175201-804 K31 2) Electrical interface 10 Command value ±10 V A1 Command value 4 to 20 mA F1 Seal material 11 NBR seals M FKM seals V 12 Further details in the plain text * 1) Electrical protection classes on request 2) Only with NG6: only indicate "K31" for version “J”! Technical data general Type 4WRAE Size 6 10 Installation position any, preferably horizontal Ambient temperature range °C -2
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