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Chwazi Kowozyon ki reziste Bellows Valv Kontwòl pou Plant Chimik

Chwazi bon korozyon ki reziste kontwòl tiyo kontwòl yo se kritik pou operasyon ki an sekirite ak efikas nan plant chimik, kote medya agresif (tankou asid, alkal, ak Solvang) ka degrade ekipman yo. Isit la yo se konsiderasyon kle:

1. Konpatibilite materyèl

Kò valv la, taye, ak Bellows dwe reziste pwodwi chimik yo espesifik okipe. Pou asid fò (egzanp, asid silfirik), hastelloy oswa Titàn yo ideyal akòz rezistans yo nan anviwònman oksidant. Pou Alkalis, 316L asye pur travay byen, pandan y ap PTFE-aliyen tiyo kostim trè korozivite oswa aplikasyon pou wo-pite. Bellows yo, se yon eleman sele kritik, souvan te fè nan inconel oswa Titàn kenbe tèt avè repete flèksyon san yo pa korozyon.
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2. Presyon ak tanperati evalyasyon yo

Asire valv la okipe presyon pwosesis la (egzanp, 150-600 klas ANSI) ak chenn tanperati. Materyèl Bellows tankou Inconel 625 fè byen nan gwo tanperati (jiska 800 ° C) ak senaryo presyon-wo, pandan y ap PTFE BELLOW yo limite a sa sèlman pi ba tanperati (tipikman <200 ° C).

3. Bellows Design ak Entegrite

Patisipe pou Bellows ak yon estrikti milti-tandans amelyore rezistans ak anpeche flit-yon sèl-tandans konsepsyon ka febli anba monte bisiklèt souvan. Tcheke pou sètifikasyon (egzanp, ISO 15848) konfime sere fèmen ak alontèm fyab, kritik pou ki gen toksik oswa temèt pwodwi chimik yo.

4. Karakteristik koule ak dimensionnement

Koresponn ak koyefisyan koule valv la (CV) nan kondisyon koule pwosesis la. Pou kontwòl egzak nan slurries korozivite, chwazi plen-pò desen pou misyon pou minimize obstrue ak ewozyon.

5. Konfòmite ak antretyen

Chwazi Valv Standards Industry Reyinyon (egzanp, ASME, API) pou sekirite plant chimik. Priyorite modèl ak fasil-a-ranplase soufle ak taye diminye D ', kòm korozyon ka akselere mete nan anviwònman piman bouk.
Pa konsantre sou rezistans materyèl, paramèt operasyonèl, ak entegrite konsepsyon, operatè plant yo ka chwazi Bellows kontwòl tiyo ki asire lonjevite ak sekirite nan pwosesis chimik korozivite.
July 24, 2025
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