Ua kapa ʻia kēia moʻo o ka valve pā makapō ʻano peʻahi he valve goggle, flap valve, fan valve, a he mea hana ia e hiki ke ʻoki i ka medium kinoea e pono ai e GB6222–86 "Industrial Gas Safety Regulations". Hoʻohana ʻia ia i loko o ka ʻōnaehana pipeline medium kinoea o nā ʻoihana ʻoihana a me nā ʻoihana mining, ka hoʻokele kūlanakauhale, ka palekana o ke kaiapuni a me nā ʻoihana ʻē aʻe, kūpono loa no ka ʻoki loa ʻana i nā kinoea ʻawahia, ʻino a me nā kinoea lapalapa. He kūpono hoʻi ia e hoʻohana ʻia ma ke ʻano he papa makapō ma ka hopena o ka pipeline e hoʻopōkole i ka manawa mālama a i ʻole e hoʻohui i kahi ʻōnaehana pipeline hou. Ke hoʻohālikelike ʻia me nā mea hana valve ʻē aʻe e hana i ka ʻoki loa i loko o ka pipeline, ʻo kēia moʻo o ka valve pā makapō ʻano peʻahi he mau ʻano o ke ʻano hou, ka māmā, ka liʻiliʻi, ka hana maʻalahi, ka wikiwiki o ka hana, a me ka hana ʻoki kinoea hilinaʻi loa.