hat
Tcheke valv se fè konfyans sou fòs la nan likid la tèt li otomatikman ouvè epi fèmen valv la, wòl li se anpeche medya yo tounen. Non li yon anpil, tankou tiyo chèk, tiyo chèk, pòt sèl-koule. Dapre estrikti a kapab divize an de kategori.
eng
Check valve is to rely on the strength of the fluid itself automatically open and close the valve, its role is to prevent the media back. Its name a lot, such as check valves, check valves, single-flow doors. According to the structure can be divided into two categories.