Main stage housing cover (opposite the OBE), Pilot oil supply external: 2, 3, 5 closed. 1. The switching signals can be used in a superior control for monitoring functions.
The valve basically consists of 3 main assemblies: - Housing (1) with main stage control spool (2) and optional spool position monitoring (13), - Integrated electronics (optionally with electronics protection membrane (14)) with inductive position transducer (3) of the main stage, - Pilot control valve (4) with control spool/socket unit (5), inductive position transducer (6) and pressure feed back for central position of the main stage control spool (2), - With de-energized proportional solenoids (7; 8) central position of the main stage control spool (2) due to centering spring (9) and pressure feed back, - Control of the main stage control spool (2) via the pilot control valve (4) → the main stage control spool (2) is positioned in a regulated manner, - Controlling the control spool of the pilot control valve (4) by changing the solenoid force of the proportional solenoids (7; 8), - Connection of the command and actual values in the integrated electronics, - Pilot oil supply to the pilot control valve internally via port P or externally via port X Pilot oil return internally via port T or externally via Y to the tank, - With a command value of 0 V, the electronics control the main stage control spool (2) in central position. Plug screw M10 x 1 according to DIN 906, wrench size 5 – pilot oil return, 5. Assuming all NFPA -D03 directional valve solenoids "push", and Shopping cart. Valves of type 4WRTE are pilot-operated directional control valves with electrical position feedback, integrated electronics (OBE) and optional spool position monitoring. A full array of spools are possible with variations in voltage and electrical connection, all within the program. R933000009. With this version, the pilot oil is supplied from channel P of the main valve (internally). 203940. Rexroth. 10 ... 2000 Hz / maximum of 10 g / 10 cycles / 3 axes, Noise test according to DIN EN 60068-2-64, 20 ... 2000 Hz / 10 gRMS / 30 g peak / 30 min / 3 axes, Transport shock according to DIN EN 60068-2-27, MTTFD values according to EN ISO 13849 1), Variant 2: +25 °C … +55 °C, 90 % … 97 % relative humidity, 2 cycles á 24 hours. Pneumatic circuits diagrams Hom e Symbols Visit us on 4 Products and Solutions to Power Your Ideas' 'hydraulic formulary bosch rexroth may 1st, 2018 - hydraulic formulary author houman hatami hydraulic resistances figure equation equation variations The valve meets the requirements of a secure start inhibitor according to EN 60204, stop category 0. Mechanical adjustment of the adjustment nut located below is prohibited and damages the valve. The pilot oil is directly returned to channel T of the main valve (internally). At Bosch Rexroth, we are the global leader in the design and manufacture of hydraulic control valves for industrial and mobile applications. Click here to see all of Bosch Rexroth's Branded Products. Valves of type 4WRTE are pilot-operated directional control valves with electrical position feedback, integrated electronics (OBE) and optional spool position monitoring. Enter your inquiry details, We will reply you in 24 hours.
To prevent condensate formation in the housing of the integrated electronics (OBE), an electronics protection. Solenoid operated directional spool valves. With control spool symbols E, E1-, W6- and W8-, the centering spring (9) sets the main stage control spool (2) in central position, control spools V- and V1 are switched to the preferred direction P to B and A to T in a tolerance range of 1% to a maximum of 11% of the control spool stroke.


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