ʻO ka DIN 1092 Stainless Steel Disc Design Wafer Check Valve kahi hopena hilinaʻi a kūpono hoʻi no ka pale ʻana i ke kahe hoʻi i loko o nā ʻōnaehana paipu ʻoihana. ʻO kona kūkulu wafer liʻiliʻi, nā mea kila kila kūpaʻa i ka pala, ka hoʻolālā haʻahaʻa-pohō, a me ka mīkini disc pani wikiwiki e lilo ia i koho maikaʻi loa no nā ʻano hana like ʻole. Inā hoʻohana ʻia i ka mālama wai, ka hana kemika, ka ʻaila a me ke kinoea, ka hana meaʻai, a i ʻole nā ​​​​lawelawe moana, hāʻawi kēia valve i ka hilinaʻi lōʻihi, ka pale ʻōnaehana i hoʻonui ʻia, a me ka hana kūpono. Ma ke koho ʻana i kahi valve kiʻekiʻe mai kahi mea hana hilinaʻi, hiki i nā mea hoʻohana ke hōʻoia i ka hana pipeline palekana, kūpono, a me ka pilikia ʻole no nā makahiki e hiki mai ana.

ʻO ka Cast Iron Dual Plate Check Valve kahi ʻano o ka valve nānā i hoʻolālā ʻia e ʻae i ke kahe (ʻo ka wai a i ʻole ke kinoea) e kahe i hoʻokahi ala wale nō a pale i ke kahe hope. ʻO ka "dual plate" e pili ana i ka ʻano hana kūloko o ka valve, nona nā papa hinged ʻelua e wehe ana e ʻae i ke kahe o ka wai a pani e pale i ke kahe hope. Ma ke ʻano he valve nānā, ʻo kāna hana nui ka pale ʻana i ke kahe hope. Wehe nā papa ʻelua i ka wā e holo ai ke kahe ma ke ala i manaʻo ʻia, a pani koke lākou i ka wā e hoʻohuli ai ke kahe, e pale ana i ke kahe hope a i ʻole ka siphoning.