Valv siling na impɔtant pat pan di wan ol valv, in men tin na fɔ mek i nɔ lik, .di valvdi siling sit dεn kכl am bak siling ring, na כganayzeshn we de in kכntakt dairekt wit di mεdiכm we de insay di paip εn i de mek di mεdiכm nכ fכ fכlכ. We dɛn de yuz di valv, difrɛn tin dɛn de na di paip, lɛk likwid, gas, ɔyl, kɔrosiv midia, ɛn ɔda tin dɛn, ɛn dɛn kin yuz di sil dɛn fɔ difrɛn valv dɛn na difrɛn say dɛn ɛn dɛn kin adap to difrɛn tin dɛn.
TWSValvemɛmba yu se di tin dɛn we dɛn kin yuz fɔ mek valv sil dɛn kin sheb to tu kategori, dat na di tin dɛn we dɛn mek wit mɛtal ɛn tin dɛn we nɔto mɛtal. Nɔn-mɛtal sil dɛn kin jɔs yuz na paip layn dɛn na nɔmal tɛmpracha ɛn prɛshɔn, we mɛtal sil dɛn gɛt bɔku bɔku aplikeshɔn dɛn ɛn dɛn kin yuz dɛn na ay tɛmpracha. ay prɛshɔn.
1. Rɔba we dɛn mek wit sintetik
Sintetik rɔba bɛtɛ pas natura rɔba we i kam pan ɔyl rɛsistɛns, tɛmpracha rɛsistɛns ɛn kɔrɛshɔn rɛsistɛns. Jɛnɛral wan, di ɔpreshɔn tɛmpracha fɔ sintetik rɔba na t≤ we dɛn kɔl150. Na di 150°C, natura l rɔba na t≤ we dɛn kɔl60°C, ɛn dɛn kin yuz rɔba fɔ sial di glob valv, get valv, dayafragm valv, bɔtaflay valv, chɛk valv, pinch valv ɛn ɔda valv dɛn wit nominal prɛshɔn PN≤ we dɛn kɔl1MPa.
2. Naylon we dɛn kɔl
Naylon gɛt di kwaliti dɛn we smɔl frikshɔn kɔfishin ɛn gud kɔrɛshɔn rɛsistɛns. Naylon na in dɛn kin yuz mɔ fɔ bɔl valv ɛn glob valv wit tɛmpracha t≤ we dɛn kɔl90°C ɛn nominal prɛshɔn PN≤ we dɛn kɔl32MPa.
PTFE na di wan we dɛn kin yuz mɔ fɔ glob valv, get valv, bɔl valv, ɛn ɔda tin dɛn wit tɛmpracha t≤ we dɛn kɔl232. Na di 232°C ɛn wan nominal prɛshɔn PN≤ we dɛn kɔl6.4MPa we yu de yuz.
4. Kast ayɛn
Dɛn kin yuz kast ayɛn fɔ get valv, glob valv, plɔg valv, ɛn ɔda tin dɛn fɔ tɛmpracha t≤ we dɛn kɔl100. Na di 100°C, nominal prɛshɔn PN≤ we dɛn kɔl1.6MPa, gas ɛn ɔyl.
5. Babbitt alɔy we dɛn mek
Babbitt alɔy de yuz fɔ amonia glob valv wit tɛmpracha t-70 ~ 150°Cɛn nominal prɛshɔn PN≤ we dɛn kɔl2.5MPa na di 2.5MPa.
6. Kɔpa alɔy
Di tin dɛn we dɛn kin yuz fɔ mek kɔpa alɔy na 6-6-3 tin brɔnz ɛn 58-2-2 manganɛs bras. Kɔpa alɔy gɛt gud wear rɛsistɛns ɛn i fayn fɔ wata ɛn stim wit tɛmpracha t≤ we dɛn kɔl200°Cɛn nominal prɛshɔn PN≤ we dɛn kɔl1.6MPa na di 1.6MPa. Bɔku tɛm dɛn kin yuz am fɔ mek get valv, glob valv, chɛk valv, plɔg valv, ɛn ɔda tin dɛn.
7. Krom stenlɛs stiɛl
Di gred dɛm we dɛn kin yuz fɔ kromiɔm stenlɛs stiɛl na 2Cr13 ɛn 3Cr13, we dɛn dɔn kwɛnch ɛn tɛmpra, ɛn dɛn gɛt gud kɔrɛshɔn rɛsistɛns. Bɔku tɛm dɛn kin yuz am pan valv dɛn we gɛt wata, stim ɛn petrolium wit tɛmpracha t≤ we dɛn kɔl450. Di wan dɛn we de wok°Cɛn nominal prɛshɔn PN≤ we dɛn kɔl32MPa.
8. Krom-nikɛl-taytaniɔm stenlɛs stiɛl
Di gred we dɛn kin yuz fɔ kromiɔm-nikɛl-taytaniɔm stenlɛs stiɛl na 1Cr18Ni9ti, we gɛt gud kɔrɛshɔn rɛsistɛns, ɛrɔshɔn rɛsistɛns ɛn ɔt rɛsistɛns. I fayn fɔ stim ɛn ɔda midia wit tɛmpracha t≤ we dɛn kɔl600 pipul dɛn°C ɛn wan nominal prɛshɔn PN≤ we dɛn kɔl6.4MPa, ɛn dɛn kin yuz am fɔ glob valv, bɔl valv, ɛn ɔda tin dɛn.
9. Naytraydin stɛl
Di gred we dɛn kin yuz fɔ naytraydin stɛl na 38CrMoAlA, we gɛt gud kɔrɛshɔn rɛsistɛns ɛn skrach rɛsistɛns afta kabɔrayzin tritmɛnt. Bɔku tɛm dɛn kin yuz am na pawa steshɔn get valv dɛn wit tɛmpracha t≤ we dɛn kɔl540. Di wan dɛn we de wok°Cɛn nominal prɛshɔn PN≤ we dɛn kɔl10MPa we yu de yuz.
10. Fɔ mek pɔsin borɔni
Boronizing de proses di siling surface dairekt frכm di mεtirial fכ di valv bכdi כ disk bכdi, εn afta dat i de du boronizing surface tritmεnt. Di siling surface gɛt gud wear resistance. Fɔ pawa steshɔn blowdown valv.
We dɛn de yuz di valv, di tin dɛn we dɛn fɔ pe atɛnshɔn to na dɛn wan ya:
1. Dɛn fɔ tɛst di siling pefɔmɛns fɔ di valv fɔ mek shɔ se i de wok.
2. Chek if di siling surface of di valv don wear, en ripa or riples am akɔdin to di situeshɔn.
Di tɛm fɔ post: Jan-04-2023
