Kedu ihe a na-ejikarị akara maka valves?

Enwere ọtụtụ ụdị valvụ, mana ọrụ bụ isi bụ otu, ya bụ, ijikọ ma ọ bụ bepụ usoro ịgba ọsọ. Ya mere, nsogbu akara nke valvụ ahụ pụtara nke ọma.

Iji jide n'aka na valvụ ahụ nwere ike ibibi usoro nke ọma nke ọma na-enweghị nkwụsị, ọ dị mkpa iji hụ na akara valvụ ahụ adịghị. Enwere ọtụtụ ihe kpatara valvụ valvụ, gụnyere nhazi nhazi na-enweghị ezi uche, oghere kọntaktị na-adịghị mma, akụkụ ndị na-adịghị mma, ihe na-adịghị mma n'etiti valvụ ahụ na bonnet, wdg. Nsogbu ndị a niile nwere ike iduga na-adịghị mma akara nke valvụ. Ọfọn, si otú a na-eke a ntapu nsogbu. Ya mere, teknụzụ mkpuchi valvụ bụ teknụzụ dị mkpa metụtara arụmọrụ valve na ịdị mma, ma na-achọ nyocha usoro na nke miri emi.

Ihe mkpuchi a na-ejikarị maka valves gụnyere ụdị ndị a:

1. NBR

Mmanya mmanu mmanu mmanu, akwa mkpuchi akwa, ezigbo nguzogide okpomoku, adhesion siri ike. Ọdịmma ya bụ nkwụsi ike dị ala na-adịghị mma, nguzogide ozone na-adịghị mma, ihe ọkụ eletrik na-adịghị mma, na ngbanwe dịtụ ala.

2. EPDM

Akụkụ kachasị mkpa nke EPDM bụ nguzogide oxidation ya dị elu, nguzogide ozone na nguzogide corrosion. Ebe EPDM bụ nke ezinụlọ polyolefin, ọ nwere ezigbo njirimara vulcanization.

3. PTFE

PTFE nwere nguzogide kemịkalụ siri ike, iguzogide ọtụtụ mmanụ na ihe mgbaze (ma e wezụga ketones na esters), nguzogide ihu igwe dị mma na nguzogide ozone, mana nguzogide oyi na-adịghị mma.

4. Nkedo ígwè

Rịba ama: A na-eji ígwè nkedo eme ihe maka mmiri, gas na mgbasa ozi mmanụ na okpomọkụ nke≤100°C na nrụgide n'ọnụ nke≤1.6 mpa.

5. Alloy dabeere na nickel

Rịba ama: A na-eji alloys sitere na nickel maka pipeline nwere okpomọkụ nke -70 ~ 150°C na nrụgide injinia PN≤20.5 mpa.

6. ọla kọpa alloy

Alloy ọla kọpa nwere ezigbo ihe mgbochi na-adabara maka mmiri na ọkpọkọ uzuoku na okpomọkụ≤200℃na nrụgide n'ọnụ PN≤1.6 mpa.