Certificate of Compliance

Compliant item:	Trunnion Ball Valve Series
Certificate holder:	Esferomatic SA
Certificate ID:	2071.269.9
Certification type:	Product
Category:	Ball, Valve
Initial certificate:	2016/05/16
Current certificate:	2016/05/16
Expire date:	2021/05/16
Download:	Certificate

The Esferomatic Trunnion Ball Valve Series ABF / IBF has been independently certified by Risknowlogy in accordance with IEC 61508 and IEC 61511, confirming its suitability for use in safety-related shutoff applications within safety instrumented systems.

The certification applies to trunnion-mounted ball valves intended for tight shutoff duties, operating in low-demand mode. The assessment was performed using Risknowlogy’s structured functional safety methodology, addressing the requirements for hardware integrity, reliability, basic safety, functional safety management, and user documentation as defined by the applicable standards.

The certified valve series is classified as Type A hardware, reflecting a design with well-defined and predictable failure behaviour. The certification was performed using compliance route 1H, based on the evaluation of failure modes, failure rates, and architectural constraints relevant to final elements used in safety instrumented functions.

Based on the assessed failure data and compliance route, the Esferomatic ABF / IBF Trunnion Ball Valve Series is fit for use in Safety Integrity Level applications from SIL 1 up to SIL 3, subject to correct system architecture, application constraints, and lifecycle implementation in accordance with IEC 61508 and IEC 61511.

This certification provides end users, EPCs, system integrators, and asset owners with confidence that the certified valve series can be integrated into safety instrumented functions as part of a compliant functional safety lifecycle. Continued validity of the certification is dependent on the valve design remaining unchanged and on correct application, installation, operation, and maintenance by the end user.

The detailed certification basis, safety functions, conditions of use, and limitations are defined in the issued certificate and supporting Risknowlogy assessment report.