Kūpono no ka hoʻohui ʻana i ka mea hoʻoikaika valve. Hiki ke hoʻopilikino ʻia i ke kila kalapona a i ʻole ke kila kila ʻole.
Hoʻohui kēia hui ʻana i ke kumu valve i ka actuator, i hoʻohana pinepine ʻia i nā ʻōnaehana valve ball automated a i ʻole nā ʻōnaehana valve butterfly. Hana ʻia ma ke ʻano he ʻano paʻa hoʻokahi ʻāpana ma o ka mīkini CNC, hāʻawi ia i ka ikaika maikaʻi loa a me ka concentricity. Hoʻopili ka hopena nui me ka actuator, ʻoiai ʻo ka hopena liʻiliʻi e hoʻopili i kahi kumu valve kī. Hana ʻia nā kī drive ma nā ʻaoʻao ʻelua o ka lua o loko e hoʻopili me nā ʻāpana drive.