Kev faib tawm los ntawm kev tswj cov qauv: phau ntawv, kev tswj hwm hluav taws xob, kev tswj hwm hydraulic.
Qeb los ntawm kev ua haujlwm: ntws valve (lub zog loj valve, ntsuas nrawm valve, diverting thiab sau valve), siab valve (nyem valve, siab txo valve, sib lawv liag valve, unloading valve), ntsuas valve (electromagnetic directional valve, phau ntawv hloov Valve, kos valve) , hydraulic tswj xyuas valve).
Raws li cov txheej txheem kev teeb tsa: phaj valve, raj valve, superimposed valve, threaded cartridge valve, npog valve.
Raws li cov kev tswj hom: phau ntawv valve, lub cev muaj zog valve, fais valve, hydraulic valve, electro-hydraulic valve, thiab lwm yam.
