I actuator yomoyaisincedisi esiphambili sisibekeli-valve esilawulayo.Isebenza ngokuhambelana ne-actuator ye-pneumatic ukwandisa ukuchaneka kwendawo yevalve, ukunciphisa imiphumo ye-medium engalinganiyo yamandla kunye ne-stem friction, kunye nokuqinisekisa ukuba i-valve iphendula kwisignali yomlawuli.ukufikelela kwindawo efanelekileyo.

Le miqathango ilandelayo yenza kube yimfuneko ukusetyenziswa kwendawo yokusebenzela:

1. Xa kukho umahluko omkhulu woxinzelelo kunye noxinzelelo oluphakathi;

2. Xa umgangatho wevalve elawulayo inkulu (DN > 100);

3. Ivalve elawula ubushushu obuphezulu okanye obuphantsi;

4. Xa kubalulekile ukukhawulezisa umsebenzi wevalve elawulayo;

5. Xa iimpawu ezisemgangathweni zisetyenziselwa ukuqhuba ii-activators kunye neentlobo zentwasahlobo ezingaqhelekanga (izahlulo zasentwasahlobo ngaphandle kwe-20-100KPa);

6. Nanini na xa kusetyenziswa ulawulo loluhlu lokucalula;

7. Xa ivalve ijikisiwe, i-air-to-close kunye ne-air-to-open directions iyatshintshana;

8. Xa i-positioner cam idinga ukuguqulwa ukuze utshintshe iimpawu zokuhamba kwevalve;

9. Xa isenzo esilinganayo sifunwa, akukho mfuneko ye-spring okanye i-piston actuator;

10. Izivalo zevalvu zombane kufuneka zisasazwe xa kusetyenziswa iisignali zombane ukulawula ii-actuator zepneumatic.

Ivalve ye-electromagnetic:
I-valve ye-solenoid kufuneka ifakwe kwisistim xa ulawulo lweprogram okanye ulawulo lweendawo ezimbini lufunekayo.Ukusebenzisana phakathi kwevalve ye-solenoid kunye nevalve yokulawula kufuneka kuthathelwe ingqalelo xa ukhetha ivalve ye-solenoid ukongeza kumthombo wamandla we-AC kunye ne-DC, i-voltage, kunye nobuninzi.Inokuba nomsebenzi "ovulekileyo" okanye "uvaliwe ngokwesiqhelo".
Iivalve ezimbini ze-solenoid zingasetyenziselwa ngokuhambelanayo ukuba kuyimfuneko ukunyusa umthamo we-solenoid ye-solenoid ukwenzela ukunciphisa ixesha lesenzo, okanye i-valve ye-solenoid ingasetyenziswa njenge-valve yokuqhuba ngokubambisana ne-relay yomthamo omkhulu we-pneumatic.
I-pneumatic relay:
I-pneumatic relay luhlobo lweamplifier yamandla enokuthi idlulisele isignali yoxinzelelo lomoya kude ukunciphisa ixesha le-lag eliziswe luphawu lombhobho olunolulwayo.Phakathi komlawuli kunye ne-valve yokulawula intsimi, kukho umsebenzi owongezelelweyo wokukhulisa okanye ukunciphisa umqondiso.Ngokuyintloko isetyenziswa phakathi komthumeli wentsimi kunye nesixhobo sokulawula kwigumbi eliphakathi lolawulo.

umguquli:
Kukho iindidi ezimbini zabaguquli: i-converter yegesi yombane kunye ne-gas-electric converter.Ukuqaphela ukuguqulwa okuphindaphindiweyo kobudlelwane obuthile phakathi kwegesi kunye neempawu zombane yinto eyenzayo.Isetyenziswa kakhulu ukuguqula iimpawu zegesi ze-0 100KPa zibe yi-0 10 mA okanye i-0 4 mA yeempawu zombane, okanye i-0 10 mA okanye i-4 mA izibonakaliso zombane zibe yi-0 10 mA okanye i-4 mA iimpawu zombane.

Isilawuli sokucoca umoya:
Isincamathelisi sesixhobo esisetyenziswa kunye nezixhobo ezizisebenzelayo zeshishini sisihluzo somoya ivelufa ethoba uxinzelelo.Umsebenzi wayo ophambili kukuzinzisa uxinzelelo kwinqanaba elifunekayo ngelixa lihluza kwaye licoca umoya oxinanisiweyo ovela kwicompressor yomoya.Isilinda somoya, izixhobo zokutshiza, imithombo yonikezelo komoya, kunye nezixhobo zokuzinzisa uxinzelelo lwezixhobo ezincinci zomoya zeminye yemizekelo yezixhobo zomoya kunye neevalvu zesolenoid ezinokuthi zisetyenziswe kuzo.

Ivalve yokuzivalela (ivalve yokhuseleko):
Ivalve yokuzivalela yindlela egcina ivalve isendaweni.Xa umthombo womoya ungaphumeleli, isixhobo sinokulucima umqondiso womthombo womoya ukuze sigcine i-membrane chamber okanye isiginali yoxinzelelo lwesilinda kwinqanaba layo langaphambili lokungaphumeleli kunye nendawo yevalvu kwindawo yayo yangaphambili yokusilela.Kwisiphumo sokukhusela isikhundla.

isidluliseli sendawo yevalvu
Xa i-valve yokulawula ikude negumbi lokulawula, kuyimfuneko ukuxhobisa i-valve position transmitter, eguqula ukuchithwa kwe-valve yokuvula i-valve ibe ngumqondiso wombane kwaye uyithumele kwigumbi lokulawula ngokuhambelana nomgaqo omiselweyo, ukuze qonda ngokuchanekileyo indawo yokutshintsha kwevalve ngaphandle kokuya kwindawo.Isignali isenokuba luphawu oluqhubekayo olumele nakuphi na ukuvuleka kwevalvu okanye inokuthathwa njengomsebenzi wokubuyisela umva wesimiseli-valve.

Ukutshintsha ukuhamba (umnxibelelanisi)
Ukutshintsha okulinganiselweyo licandelo elithumela ngaxeshanye uphawu lwesalathisi kwaye libonisa iindawo ezimbini ezigqithisileyo zevalvu.Igumbi lokulawula linokubika isimo sokutshintsha kwevalve ngokusekelwe kulo mqondiso kwaye uthathe isenzo esifanelekileyo.