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New ATEX Certification for Netherlocks FAITH Partial Stroke Testing System

Posted: Monday 9th December 2013

Netherlocks has received new EX certification for the Netherlocks FAITH Partial Stroke Testing (PST) system, recognising the addition of a dedicated grounding means for the system.

The FAITH partial stroke product categorisation with this new certificate is now as follows:

(CE Ex II 2 G D c IIC T4)

The FAITH PST device uses mechanical pins to limit the degree of valve closure, allowing for easy, safe testing of system-critical components such as ESD (Emergency Shut Down) and HIPPS (High Integrity Pressure Protection System) valves without affecting normal online process or operation. There is no risk of test angle overshoot or process interruption, the test can be performed at ‘real’ speed and will always return results.

For most cases, the FAITH is suitable for SIL3 applications, with an FMEDA (Failure Modes, Effects and Diagnostic Analysis) assessment carried out by Exida showing 0 Fail Safe Detected, Fail Safe Undetected and Fail Dangerous Detected conditions recorded from the test.

The new ATEX certification of the Netherlocks explosion-proof FAITH system is a good step forward in raising the level of applicability of mechanical PST in various process industries, bringing the highest levels of safety to as many environments as possible.

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