Chemical industry covers basic, fine chemistry and fibers — demands Ex protection (ATEX/IECEx), SIL safety integrity and corrosion-resistant materials (PTFE, Hastelloy, 316L). BASF, Bayer and Lanxess are German giants; Endress+Hauser, Krohne and Vega lead process instrumentation.
Chemical
Chemical
Chemical industry covers basic and fine chemistry plus fibers — needs Ex protection (ATEX/IECEx), corrosion-resistant...
Chemical industry covers basic and fine chemistry plus fibers — needs Ex protection (ATEX/IECEx), corrosion-resistant materials and process instrumentation (E+H, Krohne, Vega).
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FAQ
Q ATEX Zone 0/1/2 — what differs?
A
Zone 0: explosive atmosphere continuous (tank interior); Zone 1: present in normal operation; Zone 2: only during faults. Device EPL Ga/Gb/Gc accordingly.
Q How is SIL 1/2/3 assigned in chemical?
A
Risk assessment per IEC 61511 (HAZOP + LOPA). Typically SIL 1 = emergency shutdown valve; SIL 2 = critical ESD; SIL 3 = high-risk reactor interlock.
Q Why PTFE lining?
A
PTFE resists acid/alkali, -200~+260°C — standard lining for nitric acid, HF and other aggressive media. GMM Pfaudler and De Dietrich lead.
Q Endress+Hauser or Krohne?
A
Coverage comparable — E+H leads level and flow with the broadest HART/PROFIBUS ecosystem; Krohne differentiates in Coriolis and radar flow.