Scope: High-pressure valve 1231408, produced by BHDT, holds an independent functional safety certificate from Risknowlogy issued under IEC 61508:2010. The certificate confirms that the valve meets the applicable functional safety requirements for use as a final element in safety-instrumented functions.

In high-pressure chemical and petrochemical service, valve 1231408 provides tight shutoff. Its safety function is to bring the valve closed on demand within a defined response time, operating in low-demand mode. The valve is deployed within a final element assembly that unites it with an actuator, a solenoid, and the related pneumatic supply components.

Risknowlogy certified the valve under compliance route 1H, assessing its failure modes, failure rates, and architectural constraints against the requirements of IEC 61508. Valve 1231408 is a Type A device with well-defined and predictable failure behaviour, and its design is rooted in an established BHDT concept that carries a documented operational record.

Based on the assessed failure data and the compliance route applied, valve 1231408 is fit for SIL 1 safety functions at HFT = 0 and for SIL 2 safety functions at HFT = 1, in accordance with IEC 61508. It is covered by individual certificate 2628.653.15-1, issued 2026-06-09.

For end users, EPCs, system integrators, and asset owners, this certification confirms that valve 1231408 can be selected and integrated into safety-instrumented functions as part of a compliant functional safety lifecycle. The certification is valid only while the valve design remains unchanged and while the end user applies, installs, operates, and maintains it correctly. Responsibility for safe integration into the overall safety-instrumented system, for proof testing, and for lifecycle management under IEC 61508 sits with the end user. The detailed certification basis, conditions of use, and end-user responsibilities are defined in certificate 2628.653.15-1 and the supporting Risknowlogy assessment report 2628.653.16.