Ibhokisi lokushintshwa komkhawulo we-valve, elibizwa nangokuthi i-Valve Position Monitor noma iswishi yokuhamba ye-valve, iyithuluzi elisetshenziselwa ukubona nokulawula indawo yokuvula nokuvala yevalvu. Ihlukaniswe ngezinhlobo zemishini kanye nezindawo eziseduze. imodeli yethu ine-Fl-2n, Fl-3n, Fl-4n, Fl-5n. Ibhokisi lokushintsha elilinganiselwe amazinga okuvikela ukuqhuma nokuvikela lingahlangabezana nezindinganiso ezisezingeni lomhlaba.
Ukushintshwa komkhawulo wemishini kungabuye kuhlukaniswe kube izinhlobo ezisebenza ngokuqondile, ezigoqayo, ezihamba kancane kanye nezinhlobo ezihlanganisiwe ngokuya ngezindlela ezihlukene zesenzo. Amaswishi omkhawulo wamavalvu omshini ngokuvamile asebenzisa amaswishi e-micro-motion anokuxhumana okwenziwayo, futhi amafomu awo okushintsha ahlanganisa i-single-pole double-throw (SPDT), i-single-pole single-throw (SPST), njll.
Ukushintsha komkhawulo we-Proximity limit, okwaziwa nangokuthi amaswishi okuvakasha angathinti lutho, amaswishi omkhawulo wamavalvu wokungenisa kazibuthe ngokuvamile asebenzisa amaswishi e-electromagnetic induction proximity switch anoxhumana nabo abangenzi lutho. Amafomu ayo okushintsha ahlanganisa i-single-pole double-throw (SPDT), i-single-pole single-throw (SPST), njll.