Voith electro-hydraulic way valves are servo directional control valves. They have integrated position control and provide direct control of hydraulic positioning cylinders. The positioning cylinders operate a valve that controls the mass flow needed to drive machinery. Voith way valves ensure very precise and high dynamic control of the mass flow.

Working in conjunction with a hydraulic cylinder, the way valve converts a constant input pressure into a variable stroke. A standard 4-20 mA signal specifies the stroke of the positioning cylinder. The major components of a way valve are a 3/3 way hydraulic unit for single-acting positioning cylinders or a 4/3 way hydraulic unit for double-acting positioning cylinders and a force-controlled electromagnet with integrated position control. No additional pilot valve is needed when using a Voith electrohydraulic way valve.

The way valve features a simple, compact design which ensures consistent and reliable operation. The Mean Time Between Failures (MTBF) of a Voith way valve is over 180 years. Your equipment therefore runs for an exceptionally long period of time ensuring continued productivity.

The way valve is available in two redundant designs:

-T-WSR tandem way valve (dual coil way valve) with redundant control magnets (warm redundancy)

-WSM way valve module (hot redundancy)

Advantages and benefits

-The Mean Time Between Failure (MTBF) is over 180 years. Your equipment operates reliably, productivity increases and the costs associated with lost production remain low

-Voith way valves aren't sensitive to contaminated pilot oil. Turbine lubricating oil is suitable as the operating fluid. One oil supply system for both lubricating and pilot oil suffices and keeps maintenance simple, which helps you lower operating costs

-During load rejection, the way valve shifts the control valve to the partial-load position very rapidly (approx. 300 ms). When a shutdown command is received, the way valve shifts the control valve to the safe position (open or closed) rapidly (approx. 300 ms) which ensures high equipment availability

-The way valve incorporates fast and exact position control. Very good control response, almost no hysteresis, and a resolution better than 0.1% will ensure very fast and accurate control. High product quality together with a stable process is one of many benefits experienced

-Lower intergration costs are experienced as connections are industry-standard with the way valve mounting easily to your equipment

-The stroke and control gain can be adjusted easily on-site by means of potentiometer which allows you to adjust both quantities to the application quickly and without any delay

-For use in hazardous areas, we offer explosion certified proof way valves

Typical fields of use

-Control valve operation of:

--Steam turbines

--Gas turbines

--Compressors

-Retrofit of mechanic-hydraulic valve controls

-Upgrade of systems with Voith DSG I/H converters

-Upgrade of systems with Woodward CPC or CPC-II converters

Voith E/H Converter WSR: WSR-C25XXX, WSR-C45XXX, WSR-C60XXX, WSR-E60XXX, WSR-E80XXX, WSR-K120XXX, WSR-D16XXX, WSR-D24XXX, WSR-D45XXX, WSR-D60XXX, WSR-D80XXX, WSR-K120XXX, WSR-E60226-S, WSR-D16112, WSR-E60106, WSR-C45215-S, WSR-E60106-S, WSR-E60156, WSR-K120112-S, WSR-D24112, WSR-C45115, WSR-C12002, WSR-D16214, WSR-C60102, WSR-C45215, WSR-D24115, WSR-D16118, WDXL-125SG, WSR-C12003, WSR-D60XXX, WSR-E60206, WSR-D80112, WSR-D80112-S, WSR30KE05, WSR-E60206-S, WSR-F60212, WSR-C45116-S, WSR-D16128, WSR-D16212, WSR-D16224, WSR-C45102,

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