Igbe ngbanwe nke valvụ, nke a na-akpọkwa Valve Position Monitor ma ọ bụ valve njem mgbanwe, bụ ngwaọrụ eji achọpụta na ịchịkwa oghere na mmechi nke valvụ ahụ. E kewara ya n'ụdị igwe na nso nso. ihe nlereanya anyị nwere Fl-2n, Fl-3n, Fl-4n, Fl-5n. Ọkwa mgba ọkụ igbe mgbawa na ọkwa nchebe nwere ike izute ụkpụrụ ụwa.
Enwere ike kewaa ngbanwe oke igwe n'ime ihe na-eme ozugbo, ntụgharị, obere mmegharị na ụdị jikọtara dịka ụdị omume dị iche iche si dị. Mgbanwe nke valvụ mekanical na-ejikarị mgba ọkụ micro-motion nwere kọntaktị na-agafe agafe, na ụdị ngbanwe ha gụnyere otu-pole double-throw (SPDT), single-pole single-throw (SPST), wdg.
Mgbanwe oke nso nso, nke a makwaara dị ka mgbanwe mgbanwe njem na-enweghị kọntaktị, ihe ndọta valvụ ịgba ọkụ na-ejikarị ọkụ ọkụ induction nso nso nwere kọntaktị na-agafe agafe. Ụdị ngbanwe ya gụnyere otu-pole double-throw (SPDT), single-pole one-throw (SPST), wdg.