ʻO ka pahu huila Rubber -ʻO ka pahu pahu he mea vulcanized rubber.He mea paʻakikī ke pale aku i ka embrittlement, a e haʻalulu mālie ka valve, deform, a nalowale ka ductility.Eia kekahi, i ka wā e holo ai ke kaʻa, e koli ka pahu vulcanized rubber i hope a me ka ikaika centripetal a me ka deform, e hoʻoikaika hou i ka embrittlement o ka rubber vulcanized.No laila, pono e hoʻololi ʻia ka valve tire i ʻekolu a ʻehā mau makahiki, e like me ke ola lawelawe o ke kaila.Manaʻo ʻia e hoʻololi ʻia ka valve i ka wā e pani ʻia ai ke kaʻa.

Metala Tire Valve -Ma keʻano o ka lōʻihi, eʻoi aku ka maikaʻi o ka valve profile aluminika, no ka mea,ʻaʻole maʻalahi ka alumini, a e lilo ka valve vulcanized i mea palupalu me ka loli o ka manawa;akā, mai ka hiʻohiʻona o ka noi E kamaʻilio e pili ana, e ʻoi aku ka maikaʻi o ka vulcanized rubber, no ka mea, ua hoʻokumu ʻia ka valve vulcanized i loko o kahi ʻāpana, a ʻoi aku ka ikaika o ka hoʻopaʻa ʻana, a ʻo ke kumu o ka alumini alloy profile he kaula waho no ka kūkulu ʻia- i loko o ka paʻi paʻi paʻi paʻi.