Bɔku kayn valv dɛn de, bɔt di bɛsis wok na di sem, dat na fɔ kɔnɛkt ɔ kɔt di midul flɔ. So, di prɔblɛm we de wit di valv fɔ sidɔm rili klia.
Fɔ mek shɔ se di valv kin kɔt di midul flɔ fayn fayn wan we nɔ lik, i nid fɔ mek shɔ se di valv sil nɔ pwɛl. Bɔku rizin dɛn de fɔ mek di valv lik, lɛk di strɔkchɔral dizayn we nɔ rizinɔs, di kɔntakt sɔfa we nɔ fayn fɔ silin, di pat dɛn we de fast, we nɔ fit bitwin di valv bɔdi ɛn bɔnet, ɛn ɔda tin dɛn Ɔl dɛn prɔblɛm ya kin mek di valv nɔ sidɔm fayn. Wɛl, so dat de mek prɔblɛm de wit lik. So, valv siling teknɔlɔji na impɔtant teknɔlɔji we gɛt fɔ du wit valv pefɔmɛns ɛn kwaliti, ɛn i nid fɔ du sistamɛtik ɛn dip risach.
Di tin dɛn we dɛn kin yuz fɔ sidɔm pan valv dɛn mɔ na dɛn kayn tin ya:
1. Na NBR
Eksɛlɛnt ɔyl rɛsistɛns, ay wear rɛsistɛns, gud ɔt rɛsistɛns, strɔng adheshon. Di bad tin dɛn we i kin du na we i nɔ kin ebul fɔ mek di tɛmpracha smɔl, i nɔ kin ebul fɔ mek di ɔzoyn fayn, i nɔ kin gɛt ilɛktrik prɔpati, ɛn i nɔ kin ebul fɔ elastik smɔl.
2. Di EPDM we de wok
Di impɔtant tin we EPDM gɛt na in supiriɔr ɔksidɛshɔn rɛsistɛns, ɔzon rɛsistɛns ɛn kɔrɛshɔn rɛsistɛns. biכs EPDM de pan di polyolefin famili, i gεt fayn fayn vulkanayzεshכn kכntribyushכn dεm.
3. PTFE we yu de du
PTFE gɛt strɔng kεmikכl rεsistεns, rεsistεns to mכst כyl εn sכlvεnt (eksept kεtכn εn εsta), gud wεda rεsistεns εn כzon rεsistεns, bכt i nכ kכl rεsistεns.
4. Kast ayɛn
Notis: Dɛn kin yuz kast ayɛn fɔ wata, gas ɛn ɔyl midia wit tɛmpracha we na≤ we dɛn kɔl100. Na di 100°C ɛn wan nominal prɛshɔn fɔ≤ we dɛn kɔl1.6mpa na di 1.6mpa.
5. Nikel-based alɔy
Notis: Dɛn kin yuz nikel-bɛs alɔy fɔ paip layn dɛn we gɛt tɛmpracha we na -70~150°C ɛn wan injinɛri prɛshɔn PN≤ we dɛn kɔl20.5mpa na di 20.5mpa.
6. Kɔpa alɔy
Kɔpa alɔy gɛt gud wear resistans ɛn i fayn fɔ wata ɛn stim paip wit tɛmpracha≤ we dɛn kɔl200°Cɛn nominal prɛshɔn PN≤ we dɛn kɔl1.6mpa na di 1.6mpa.
Di tɛm fɔ post: Disɛmba-02-2022
