Qhov no series valve yog dav siv nyob rau hauv cov dej thiab cov kav dej hauv kev tsim kho, tshuaj, tshuaj, nkoj tsim thiab lwm yam kev lag luam raws li ib tug on-off thiab regulating ntaus ntawv, nrog rau qhov zoo ntawm bi-directional sealing thiab txuag chaw.Xav tias dawb hu rau peb los kho lub valve rau koj qhov project.