Directional Control Valve – K220LS - Oleosistemas

Catalogue HY17-8537/UKGeneral InformationDirectional Control ValvesK220LSThe K220LS is a development of ourK170LS directional valve and this leafletserves only as a complement to theK170LS product catalogue. The numericcodes [00] used in the illustrations andwith the sub-headings for specifiablevalve functions are therefore the same asthose used in the K170LS catalogue andthe product specification programSYBER.Compact system constructionMany system functions can be integratedinto the K220LS, reducing the number ofcomponents simplifying the installation.By means of an adapter plate, theK220LS can be combined with thesmaller L90LS directional valve to servefunctions requiring lower flow. This arrangementis very compact and economical.Freedom in machine designThe K220LS is supplied with spool actuatorsfor either hydraulic or electro-hydraulicproportional remote control. Thisgives great flexibility in terms of componentlocation and the running ofpipework, hoses and electric cables.EconomyThe K220LS can be rebuilt - to increaseor reduce the number of spools - at anytime to suit the needs of the customer.Moreover, the various valve functions canbe adapted to suit the application inquestion, thus keeping energy consumptionto a minimum.Control characteristicsThanks to unique function-adapted valvespools, the K220LS gives outstandingcontrol characteristics in both the liftingand lowering movements.DesignSectional construction - The K220LS issectionally built and can be supplied incombinations of 1 to 7 spool sections. Itis designed for a system pressure of 350bar and can be used with pump flows ofup to 280 l/min (2 x 280 l/min with midinletsection). The nominal maximum flowper spool section is 200 l/min with compensator.Pressure compensation - An individualpressure compensator in each spoolsection gives excellent control characteristics.Feed reducer(s) - Common or individualfeed reducers can be adjusted between30 and 300 bar, limiting the pressure inthe respective service ports. Pressurereduction is achieved through the pressurecompensator, which shuts off the oilflow.Force feedback - Force-regulating controlcharacteristics give not only efficientacceleration of swing functions but alsomore gentle transition in speed changes.4 Parker HannifinMobile Controls DivisionBorås, Sweden