REXROTH Hom Z4WEH22 Thiab Z4WH22 4/2 Thiab 4/3 Directional Shut-off Valves, Internally Pilot Operated, Externally Pilot Operated

Component series 5XMaximum khiav hauj lwm siab 315 barMaximum ntws 650 l/min .Valves ntawm hom Z4WEH yog directional spool li qub nrog elec trohydraulic actuation. Lawv tswj qhov pib thiab nres ntawm qhov ntws.Cov kev taw qhia li qub no muaj xws li lub ntsiab valve nrog tsev nyob (1), lub ntsiab tswj lub cev (2), ib lossis ob qhov rov qab springs (3.1 thiab 3.2), nrog rau kev tsav valve (4 ).Main tswj spool (2) nyob rau hauv lub ntsiab valve yog tuav los ntawm springs los yog los ntawm pressurization nyob rau hauv lub xoom los yog thawj txoj hauj lwm. Nyob rau hauv txoj hauj lwm ini tial, ob lub caij nplooj ntoos hlav chamber (6) thiab (7) yog txuas ed pressureless rau tank ntawm pilot channel (4). Lub pilot valve yog muab nrog cov roj tsav los ntawm kev tsav kab (11). Cov khoom siv tuaj yeem muab rau sab hauv lossis sab nraud (sab nraud ntawm qhov chaw nres nkoj X hauv lub sandwich phaj, saib nplooj 6).Thaum tus tsav valve ua haujlwm, piv txwv li solenoid "a", tus tsav spool (tsis qhia ntawm daim duab) raug thawb mus rau sab laug thiab lub caij nplooj ntoos hlav chamber (7) yog li ntawd pressurized rau pilot pres tseeb. Lub caij nplooj ntoos hlav chamber (6) tseem tsis muaj zog.Qhov kev tsav siab ua haujlwm ntawm sab laug ntawm lub ntsiab tswj lub cev (2) thiab thawb nws tawm tsam lub caij nplooj ntoos hlav (3.1). Nyob rau hauv lub ntsiab valve, cov chaw nres nkoj tau txuas rau ntawm cov khoom siv sab thiab ntawm lub phaj sab nyob ntawm lub cim