Mounting surface nfpa d03 iso 44010302005 max pressure 5000 psi 350 bar flow rate 7 gpm 26 lmin. Directional control valves proportional bosch rexroth sa. Catalog hy142550us proportional directional control valves a157 parker hannifln corporation hydr alv division elyr a series d1fp directional a control valve proportional control size ng6 pilot spool type. In the case of control deviations, the doublestroke solenoid is. Externally pilot operated proportional directional valves, types 4wrh and 5wrh. Rexroth proportional valves for the internal function test of the hydraulic system. Setup the 4wrpeh highresponse valve mainly consists of. Using integrated electronics, they reduce the cabling effort and simplify handling. Kbfdtg4v5, 12 series proportional directional valves. Values in the us customary unit system are converted and rounded. The proportional solenoids are pressure tight, oilimmersed dc solenoids with.
The flowtronic d features software with many features including control loop customisation so the valve can be tuned to the application. Valves of type 4wrte are pilotoperated directional control valves with electrical position feedback, integrated electronics obe and optional spool. Valves of type 4wrte are pilotoperated directional control valves with electrical position feedback, integrated electronics obe and optional spool position monitoring. The dse3f is a direct operated directional proportional valve, cetop 03, with feedback and mounting interface in compliance with iso. Direct operation of the control spool 2 by controlling a pro. The proportional solenoids are pressuretight, wetpin ac solenoids with detachable coils. In conjunction with amplifier vt5041, it controls the swashplate angle of the pump in either closed loop pressure or flow. Through the pilot proportional valve to control the movement of the main valve core, a high. The function of this valve version is basically the same as that of the valve with 3 switched positions. Bosch rexroth proportional directional valves hydraulics. Housing 1 with connection surface control spool 2 with compression springs 3 and 4 and spring plate 5 and 6 solenoids 7 and 8 with central thread. The control edge dimensions have been optimized for use as a pilot control valve for proportional directional valves type 4wrke.
Direct operated proportional directional valve without electrical. A main valve 10 with main spool 11 and centring spring 12. Direct operated proportional directional valve with electrical posisiton feedback and integrated electronics obe for type 4wree closed loop control of the direction and size of a flow operation is by proportional solenoids with a central thread and removable coil for subplate mounting. Direct operated proportional directional valve with electrical posisiton feedback and integrated electronics obe for type 4wree closed loop control of the direction and size of a flow operation. This feature is available in concealed and rubber boot options see image below with the ability to manually shift the valve in case of a power failure. No manual override blank manual override concealed n9. Our knowledge and expertise is invaluable in assisting your company with old and new series bosch rexroth servo and proportional valve repairs, as well as any of the standard directional, flow and pressure control valve repair and replacement needs. Wrh are pilot operated proportional directional valves for the external operation by means of pres. In the case of control deviations, the doublestroke solenoid is activated which adjusts the control spool by means of changed solenoid force. Bosch rexroth proportional directional valves hydraulics online. Catalog hy142550us proportional directional control. Proportional directional cartridge valve, pilotoperated, with integrated electronics obe or external control electronics 2wfc. Stw series proportional directional valves rexroth a. Lifetime test of new water hydraulic proportional directional.
Actuation by proportional solenoids with a central tube and. For use in electrohydraulic controls in production and test systems. Directional control valves, direct operated, with electrical. Poclain hydraulics hydraulic components directional control valves mechanically operated electrically operated hydraulically operated cartridge throttle pq performance curves if flow rates. Bosch rexroth directional control valves d03 ng6 3 this order code describes the desired model variances of the do3 ng 6 directional control valves. Parker proportional valves meet performance needs for a wide range of applications. General description kbfdtg4v5 a range of proportional directional and throttle valves with integral control electronics. Proportional directional valves are available as direct operated and pilot operated valves with or without integrated electronics obe. Operation is effected by proportional solenoids with central thread and detachable coil.
The 42 and 43way proportional directional valves are designed as direct operated components for subplate mounting. Bosch rexroth r901115874 proportional directional valve. Bosch rexroth proportional directional valves can be used as pressure valves and flow control valves with their integrated electronics obe they reduce wiring and simplify handling whilst providing exact. Catalog hy142550us proportional directional control valves a157 parker hannifln corporation hydr alv division elyr a series d1fp directional a control valve proportional control size ng6 pilot spool type flow spool position on power down input signal pilot options connections seal weight. Proportional directional valves, direct operated with. Valve element with direct proportional flow sharing control. Sizing, electronics and performance are the three most important factors to consider when selecting a proportional directional control valve. Proportional valves can be used as flow and pressure controls, but the most common use is as a directional valve.
Direct operated proportional directional control valves, which control both the direction and volume of a fluid. The type 4wree valve is a direct operated proportional directional valve with electrical position feedback and integrated electronics obe. Valve housing with control spool and sleeve in servo. Jul 03, 2018 bosch rexroth r901115874 proportional directional valve. The rexroth model code uses the following designations. Rexroths rugged valves are ideal for automated electrohydraulic control applications, while other intelligent solutions include valves delivering proportional directional control, proportional relief. Digital controller for proportional solenoid valves control d is a pid. Factoryset adjustments of gain, spool deadband compensation and offset ensure consistent repeatability valve to valve.
The 42 and 43 proportional directional valves are direct operated components of subplate. Neal hanson 3182011 product management bosch rexroth ag 2010. Hydraulic proportional and closed loop system design. Twostage proportional directional control valves in which the mainstage spool is positioned according to the output from an integrally mounted proportional, solenoidoperated, pressurereducing valve. This valve is to be considered a part and not a complete control. The vtdfpa2xg24k00v is the pilot control valve for the sydfe1 system. The dse3f is a direct operated directional proportional valve, cetop 03, with feedback and mounting interface in compliance with iso 4401 cetop rp 121h standards. The solenoids are controlled by external electronics. The wraeb6 may also be used with a dc switching signal, if the application requires throttled shifting without full proportional control. Bosch rexroth proportional directional valves bosch rexroth proportional directional valves can be used as pressure valves and flow control valves with their integrated electronics obe they reduce wiring and simplify handling whilst providing exact reproducing and a low manufacturing tolerance at the same time. Jun 09, 2017 how it works hydraulic proportional valve. Wrh are pilot operated proportional directional valves for the external operation by means of pressure control valves. Proportional directional control valves from continental. Directional control valves proportional with 11 types to choose from, the bosch rexroth range includes maximum working pressures between 70 and 350 bar.
The 2 switched position valves are however, only fitted with solenoid a 5. Bosch rexroth proportional and servo valves hydraulics. Rexrothproportionalvalve drilling solutions limited. The control edge dimensions have been optimized for use as a pilot control valve. A plug 11 is fitted in place on the 2nd proportional solenoid. Catalog hy142550us proportional directional control valves. Goto proportional valves ships in 10 business days. Kbfdtg4v5, 12 series proportional directional valves with.
Rexroths rugged valves are ideal for automated electrohydraulic control applications, while other intelligent solutions include valves delivering proportional directional control, proportional relief, proportional pressure reduction, proportional flow control, and proportional throttle. This guide will help you select the best valve suited for your specific use. Direct operated proportional directional valve with electri. They are actuated by means of proportional solenoids with central thread and. Proportional directional valve, direct operated, with. Our knowledge and expertise is invaluable in assisting your company with old and new series bosch. It is normally used to control position and the speed of hydraulic actuators. Direction of mainspool travel depends upon which of the two solenoids.
Bosch rexroth proportional, high response servo valves are used as directional valves, pressure valves and flow control valves. Rexroth proportional directional valve 4wrke is a highperformance closedloop proportional directional valve. Direct operated proportional directional control valves, which control both the direction and volume of a fluid flow. Section 2 solenoid directional control valves cross hydraulics. Bosch rexroth proportional and servo valves hydraulics online. Directional valve element with proportional control of tank unloaded excess flow size 6 max operating pressure 310 bar 4500 psi max flow 28 lmin 7 gpm electrical connection en 175301803, amj, dt042p ed4p data sheet 1830106 technical data 4342 directional valve element with proportional control and with or without ls connection size 6.
Bosch rexroth proportional hydraulic directional control. With our modular eco 80 valves, you can expect all the benefits of our proven pvg valve technology at a level of quality and performance that wont let you down. The valve solenoids can be driven by a variable current power supply or by use of external power amplifier cards designed to maximize the valve performance. Proportional directional valve direct operated with. Pilot operated 2stage proportional directional valves with. In conjunction with amplifier vt5041, it controls the swashplate angle of the pump in either closed loop pressure or flow control. Twostage proportional directional control valves in which the mainstage spool is positioned according to the output from an integrally. Directional valve element with proportional control of tank unloaded excess flow size 6 max operating pressure 310 bar 4500 psi max flow 28 lmin 7 gpm electrical connection en 175301803, amj, dt04. They reduce the required wiring and simplify handling, with their integrated electronics obe, whilst providing exact reproducibility and a low manufacturing tolerance at the same time. Ets has over 25 years of sales and service experience with the bosch rexroth group in the u.
While the design of proportional directional valves may vary from one manufacturer. The control edge geometry was designed and optimised for use as a pilot control. Rexroth proportional valve 4wrte heash technique b. Using integrated electronics, they reduce the cabling effort and simplify. Through the pilot proportional valve to control the movement of the main valve core, a highprecision electric position feedback device and a builtin amplifier are installed on the main valve body for the valve itself. Pilot valve for the pressure and flow control system syhdfe.
Discover the proportional hydraulic directional control valve product range of bosch rexroth. These valves are ideal for many closed loop applications. They reduce the required wiring and simplify handling, with their integrated. It can achieve the simultaneous activation of different actuators by distributing. The control edge geometry was designed and optimised for use as a pilot control valve for the proportional directional valves type 4wrke. The main stage is positioncontrolled so that the control spool position is independent from flow forces also. A proportional control valve system can be used to improve control of most machines without the high price tag of servo control systems.
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