EVR ndi valavu yachindunji kapena servo yoyendetsedwa ndi solenoid yamadzi, kuyamwa, ndi mizere yamafuta otentha okhala ndi mafiriji opangidwa ndi fulorosenti.
Ma valve a EVR amaperekedwa athunthu kapena ngati zigawo zosiyana, mwachitsanzo, thupi la valve, coil ndi flanges, ngati pakufunika, akhoza kuyitanitsa padera.