Kev txhawb nqa kev tso cua rau hauv qhov chaw sib twb yuav pab los replace cov txheej txheem sib twb ntau yam uas yuav pab sau lub siab ntawm kev siv cov cuab yeej, txo lub sijhawm uas tsis tuaj yeem siv cov cuab yeej rau kev kho, ua qhov kev siv cov cuab yeej kom haum rau kev siv, pab rau kev kho, thiab lwm yam. Cov khoom sib twb (ejectors) yog cov khoom zoo tshaj plaws rau kev txhawb nqa thiab tswj qhov cua ntawm cov khoom. Thaum peb muaj kev sib piv rau cov khoom sib twb (heat exchangers), cov khoom txhawb nqa (heaters) yog li leej nkaus thiab ua haujlwm txhua hnub thiab tsis muaj kev tawg lossis muaj kev tawg ntaub. Ntawd tsi yog li, peb tuaj yeem tso cov khoom sib twb rau hauv cov rooj tshuag thiab tso rau hauv cov chaw uas haum rau kev siv. Cov khoom sib twb siv cov khoom tshuag (diaphragm actuator). Ntawd feem ntau sib xyaw nrog cov khoom tswj qhov cua (regulators) thiab cov khoom tswj qhov cua (positioners), cov sainal 4-20mA DC yuav pab los ua cov sainal pneumatic rau cov khoom tshuag. Rau cov kev siv uas muaj kev ntsuas qhov cua, peb tuaj yeem muab cov khoom tswj qhov cua (remote installation locators) los siv. Pab muab cov khoom tswj qhov cua (alternative locators) uas haum rau cov kev siv ntawm qhov chaw lossis raws li kev thov.
Cov ntaub ntawv uas tsis tuaj noj tshem yog qhov zoo thiab muaj peev xwm, thiab yuav pab txhawj xyuam kom cov ntaub ntawv ntawd yuav tsis noj tshem raws li xav tau rau cov ntaub ntawv uas muaj hluav taws. Rau ntau yam khoom siv, kev sib npaug thiab cov ntaub ntawv uas muaj qhov txaus nyob rau hauv qhov chaw tseem ceeb yog tsim nyog. Tiamsi qhov kev sib npaug ntawd tsis tuaj yeem rau ntau yam khoom siv, piv txwv li cov ntaub ntawv uas muaj dej tshuaj, yuav tsum muaj kev sib npaug ntxiv rau qhov kev sib npaug tseem ceeb. Txoj kev no pab txhawj xyuam kom cov khoom siv hluav taws yuav nyuaj dua. Lwm yam dej tshuaj yuav tsum muaj kev kho ntxiv. Piv txwv li rau kev sib npaug hluav taws rau cov ntaub ntawv uas muaj dej tshuaj, peb xav kom sib npaug thiab siv cov ntaub ntawv uas nyuaj thiab tsis noj tshem, muaj ntau yam ntaub ntawv uas tuaj yeem siv rau ntau yam kev siv.
