Umgaqo osisiseko wokusebenza wevalve ye-pneumatic kukuba umoya ocinezelweyo ungena kwi-actuator ye-pneumatic ukuze uqhube i-Piston, kwaye emva koko ukujikeleza okanye ukuphakamisa i-torsion shaft kuqhuba isiqu.Iivalve zomoya zohlulwe zibe yi-single-acting (spring return) kunye ne-double acting.

I-acting enye(imbuyekezo yasentwasahlobo) i-pneumatic actuatoryisakhiwo sePiston esiqhutywa entwasahlobo, kukho imigaqo emibini: ngokuqhelekileyo ivulekile (NO) kwaye ivaliwe ngokuqhelekileyo (NC), oku kuthetha ukuba: xa umoya ungena, ivalve ivaliwe (NO);xa umoya ungena, ivalve ivuliwe(NC).

I-actuator yeevalvu zepneumatic esebenza kabiniidinga ukuxhotyiswa nge-5-indlela ye-2-indawo yevalve ye-solenoid ukulawula umoya ungena kwindawo yokungena eyahlukileyo kwaye ulawule ivalve ivule kwaye ivale.Xa uqhuba umzimba wevalve efanayo, isantya sokuvula kunye nokuvala sokusebenza kabini sikhawuleza kunokusebenza okukodwa.

Imigaqo yokuSebenza okuNye kunye nabaSebenzi abaBambele kabini

UmGaqo we-Actuator eNye (Imbuyekezo yaseNtwasahlobo)

Umoya ukuya kwizibuko A unyanzela ipistons ukuba iphumele ngaphandle, ibangela ukuba imithombo ixinzelele, Iphiko lijika lijike ngasekunene ngelixa umoya uphelelwayo kwizibuko B.
Ukulahleka koxinzelelo lomoya kwizibuko A, amandla agciniweyo kwimithombo anyanzela iipistons ngaphakathi.Iphini lijika ngasekunene ngelixa umoya uphelelwayo kwizibuko A.

Umoya ukuya kwizibuko u-B unyanzela ipistons ukuba iphumele ngaphandle, ibangela ukuba imithombo ixinzelele, Iphiko lijika lijike ngokunxamnye newotshi ngelixa umoya uphelelwayo kwizibuko B.
Ukulahleka koxinzelelo lomoya kwizibuko A, amandla agciniweyo kwimithombo anyanzela iipistons ngaphakathi.Iphini lijika ngasekunene ngelixa umoya uphelelwayo kwizibuko A.

UmGaqo we-Actuator eBamba kabini

Umoya ukuya ePort A unyanzelela ipistons ukuba iphumele ngaphandle, ibangela ukuba iphini lijike ngasekunene ngelixa umoya uphelelwayo kwiBhayi B.

Umoya ukuya eBhayi unyanzelisa iipiston ukuba zingene ngaphakathi, nto leyo ebangela ukuba iphini lijike ngokwewotshi ngelixa umoya uphelelwayo kwiBhayi A.

Umoya ukuya ePort A unyanzela ipistons ukuba iphumele ngaphandle, ibangela ukuba iphini lijike ngokwewotshi ngelixa umoya uphelelwayo kwiBhayi B.
Umoya ukuya eBhayi B unyanzela ipistons ukuba ingene ngaphakathi, ibangela ukuba iphini lijike ngasekunene ngelixa umoya uphelelwayo kwiBhayi A.

Imveliso ye-Torque Diagram