Hanwei WD and BS Gas Detectors Receive TÜV Rheinland SIL 2 Certification

Product News2026-03-30

What the official release says

The official announcement names WD and BS fixed gas detector series.
It reports compliance with IEC 61508 systematic capability SC 3 and SIL 2 for the certified scope.
The source also describes ATEX and IECEx coverage for specified Zone 1 and Zone 21 applications.

Why it matters for overseas projects

For industrial buyers, the announcement identifies a certification path worth reviewing when fixed gas detectors are evaluated for safety-related and hazardous-area applications.

Visual evidence from the official release

These images were published with the cited Hanwei article. Captions explain what the image supports and where model-level confirmation is still required.

TÜV Rheinland SIL 2 certificate presentation to Hanwei — Certificate presentation photographed at the industry conference and published by Hanwei.

TÜV Rheinland SIL 2 certificate shown in Hanwei's official announcement — Certificate image from the official release. Buyers should verify the certificate number, scope, models and validity from the controlled document.

WD and BS fixed gas detector series shown in Hanwei's SIL 2 announcement — WD and BS fixed gas detector series pictured in the official announcement. Certification must not be extended to other models.

Fact and selection boundary

Certification must be checked against the certificate number, exact model, variant, gas, market and validity. This summary does not extend the certification to all Hanwei gas detectors.

Source

This page is an English editorial summary prepared from the cited public Hanwei release. It is not a controlled product datasheet, certificate or word-for-word official translation.

Hanwei official TÜV Rheinland SIL 2 announcement (Chinese)

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