Hoʻokomo ʻia ma ka ʻaoʻao o ka huelo o ka paipu hoʻoheheʻe, ʻo ka flap valve ka hana e pale ai i ka hoʻopiha ʻana i ka wai o waho.Hoʻokumu ʻia ka valve flap i ʻehā mau ʻāpana: ka noho, ka pā valve, ke apo sila wai a me ka hinge.Hoʻokaʻawale ʻia nā ʻano i nā pōʻai a me nā ʻāpana.

.Kaʻina hoʻoheheʻe wai: ʻAʻohe wai hoʻoheheʻe mai nā pūnāwai hoʻoheheʻe mua

Ua hoʻokumu ʻia ʻo Tianjin Tanggu Jinbin Valve Co., Ltd. i ka makahiki 2004, me ke kapikala i hoʻopaʻa ʻia he 113 miliona yuan, 156 mau limahana, 28 mau mea kūʻai aku o Kina, e uhi ana i kahi ʻāpana o 20,000 square meters i ka huina, a me 15,100 square meters no nā hale hana a me nā keʻena. He mea hana valve ia e hana ana i ka R&D oihana, ka hana a me ke kuai ana, he hui hui hui e hoohui ana i ka epekema, ka oihana a me ke kalepa.

Aia ka hui i kēia manawa he 3.5m vertical lathe, 2000mm * 4000mm boring and milling machine a me nā mea hana nui ʻē aʻe, multi-functional valve performance testing device a me kahi ʻano o nā lako hoʻāʻo kūpono.