ʻO ka pahu hōʻoia e pili ana i kahi valve nona ka ʻāpana wehe a pani ʻia he disc valve pōʻai, e hana ana ma muli o kona kaumaha ponoʻī a me ke kaomi ʻana e pale i ke kahe hope o ka mea waena.ʻO ia ka valve aunoa, i ʻike ʻia ʻo ka valve check, one-way valve, return valve or isolation valv...
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