Qhia peb cov khoom siv ntau yam thiab txhim khu kev qha, Dual Phaj Check Valves, nws yog nrog cov duab wafer, siv cov khoom siv Stainless Hlau thiab tuaj yeem dais Siab.Lub pob valve no yog tsim los ua kom tau raws li cov kev xav tau ntawm ntau yam kev lag luam, ua kom muaj kev ua haujlwm zoo thiab muaj kev nyab xeeb hauv ntau yam kev siv.e.