Ua kapa ʻia kēia pūʻulu o ka pā kīwī makapō hoʻoheheʻe ʻia i ka goggle valve, flap valve, fan valve, a he mea hiki ke ʻoki i ke kinoea e koi ʻia e GB6222-86 "Industrial Gas Safety Regulations". Hoʻohana ʻia ia i ka ʻōnaehana pipeline gas medium o nā ʻoihana ʻenehana a me nā ʻoihana mining, ka hoʻokele aupuni, ka mālama ʻana i ke kaiapuni a me nā ʻoihana ʻē aʻe, kūpono loa no ka ʻoki ʻia ʻana o nā kinoea ʻawaʻawa, ʻino a me ke ahi. He kūpono hoʻi ia e hoʻohana ʻia e like me ka pā makapō ma ka hopena o ka pipeline e hoʻopōkole i ka manawa mālama a i ʻole e hoʻopili i kahi ʻōnaehana pipeline hou. Ke hoʻohālikelike ʻia me nā ʻāpana valve ʻē aʻe e ʻoki loa ai i ka pipeline, ʻo kēia ʻano o ka fan-shaped blind plate valve i nā hiʻohiʻona o ke ʻano o ka moʻolelo, ke kaumaha māmā, ka liʻiliʻi liʻiliʻi, ka hana maʻalahi, ka wikiwiki o ka hana, a me ka ʻoki ʻoki pono loa. hana kinoea.