Bosch servo valve pdf

Pdf the paper presents the research activities aiming to design the. The valve shown below is called a fourposition valve. Production of new servovalves in 1990 with all the benefits of modern materials and. The 42 and 43 proportional directional valves are designed as direct. Hydraulic proportional and closed loop system design.

Particularly with proportional valves, a 10 bar drop is not sufficient for many applications, the loop drop is a reference value to measure flow. The 2 nd stage 9 of the valve has a precision ground 4way control spool. These valves consist of two stages, the 1st stage 2, has a magnetic torque motor 1 and is of flappernozzle type design. Easily integrated into machinery concepts they offer excellent energy efficiency, optimal power, and bosch rexroth quality. Our portfolio includes proportional directional valves, proportional pressure valves, proportional flow valves, highresponse valves, servo valves and complemented by the valve accessories. Electrohydraulic 4way directional servo valve model 4 ws. High quality control spool and sleeve in servo quality. Intelligent hydraulics in new dimensions ra09879 pdf click here to see all of bosch rexroth s branded products. Direct solenoid operated solenoid controlled hydraulic piloted direct operated valves we will first discuss the direct operated valve.

Proportional directional valves, direct operated with electrical position feedback. Directly operated servo solenoid directional control valve, with control piston and sleeve in servo quality. Our portfolio includes proportional directional valves, proportional pressure valves, proportional flow valves, highresponse valves, servovalves and. Progress fluid proportional valve rexroth bosch group. Neal hanson 3182011 product management bosch rexroth ag 2010. When the teststand is in the manual test mode, you virtually have a full laboratory. With their integrated electronics obe they reduce the required wiring and simplify the handling while at the same time providing exact reproducibility and. Increasing proportional valve capabilities with industry 4.

Bosch valves there are two types of valves normally in use in mills today. Gpm instructor hank ayers explains how to troubleshoot proportional valves. These valves are primarily used for closed loop control of position, force and velocity. Directly operated ng6 and ng10 valves with positive overlap and external. I approached star because i needed some servo valves reconditioned quickly.

Valve for position, force or pressure and velocity closed loop control. Proportional valve spools nominal flows pressure drops power limits performance terms 4. Visit our website at to learn more about our twopart training. Bosch rexroth employs highly advanced microelectronics to increase the capability of hydraulic servo and directional valves. Proportional, highresponse and servo valves bosch rexroth ag. These documents are for servo valves, proportional valves, including directional, pressure, and flow control versions. Rexroth hydraulics servo directional valve of 4way. Pdf designing the controller of a servo valve by simulation.