ʻO ka pahu pahu wafer lua puka 'Oi aku ka ikaika, 'oi aku ka māmā o ke kaumaha a me ka li'ili'i o ka nui i ho'ohālikelike 'ia me ka valve swing check valve ma'amau.

ʻO kaʻO ka pahu pahu wafer lua pukahoʻohana i ʻelua ʻāpana i hoʻopiha ʻia i ka puna i hoʻopaʻa ʻia ma kahi pine hinge waena.I ka emi ana o ke kahe, pili na papa i ka torsion spring action me ke koi ole i ka hoohuli.ʻO nā hiʻohiʻona āpau i hui pū ʻia e hana i ka Dual Plate Check Valve kekahi o ka hoʻolālā maikaʻi loa.

loaʻa iā mākou ka pahu pahu pahu pālua pālua no ka haʻahaʻa haʻahaʻa a me ka mahana maʻamau, me ka hana sila ʻana maikaʻi,a ʻo ka noho metala ʻelua pāpaʻi pahu pahu no nā kūlana hana koʻikoʻi, kiʻekiʻe wela, kiʻekiʻe kiʻekiʻe, nā kūlana hana paʻakikī.