Txiav tawm: txiav tawm qhov nruab nrab hauv cov kav dej. Xws li: rooj vag valve, ntiaj teb valve, pob valve, ntsaws valve, npauj npaim valve, thiab lwm yam.
Tsis yog- rov qab siv: txhawm rau tiv thaiv qhov rov qab ntawm qhov nruab nrab. Xws li: check valve
Rau kev tswj hwm: tswj kev siab thiab ntws. Xws li: regulating valve, siab txo valve, throttle valve, npauj npaim valve, V-zoo li tus qhib pob valve, tshuav valve, thiab lwm yam.
Kev faib tawm yog siv los hloov cov kev taw qhia ntws ntawm qhov nruab nrab hauv cov raj xa dej thiab faib qhov nruab nrab. Xws li lub pob valve, peb-txoj kev lossis plaub- txoj kev pob valve, ntsaws valve, thiab lwm yam.
Kev nyab xeeb siv: siv rau kev tiv thaiv kev ruaj ntseg overpressure. Xws li: kev ruaj ntseg valve, overflow valve
Lwm cov kev siv tshwj xeeb xws li cov cuab yeej siv hluav taws xob, cua ntxiab, lub tshuab cua tshuab, lub tshuab ua pa, lub tshuab ua pa, slag tawm li qub, ntsuas kub tswj li qub, thiab lwm yam.
