Safety systems engineered from risk, not assumptions.
Safety design begins with hazard analysis and ends with verified risk reduction. Every safety instrumented function is traceable from the initiating hazard through SIL allocation, design, verification, testing, and long-term operation.
Risk-Based Safety Engineering
Safety systems should reflect actual process risk, not generic templates. Hazard studies, consequence analysis, and layer-of-protection evaluations establish the basis for every SIS decision.
- Hazard AnalysisHAZOP facilitation and participation grounded in real operating conditions and process behaviour.
- LOPA & SIL AllocationRisk reduction requirements established through defensible assumptions and documented methodology.
- TraceabilityEvery hazard scenario linked directly to its corresponding safety instrumented function and lifecycle documentation.
Defensible risk reduction, verified safety performance, and documentation that survives the next twenty years of plant life.
Verified Safety Instrumented Functions
Safety functions are engineered to achieve their required performance, not simply assembled from preferred hardware.
- Safety Requirements SpecificationEach SIF defined with required action, response time, fail-state, testing method, and operating constraints.
- Architecture SelectionVoting architecture, redundancy, diagnostics, and proof-test intervals selected to satisfy the required integrity target.
- Cause & Effect DevelopmentProtection logic documented explicitly, eliminating undocumented interlocks, bypasses, and operator assumptions.
Lifecycle & Compliance
Safety integrity is maintained, not granted at startup. Proof-test programs and management-of-change processes keep the SIS performing as intended throughout the life of the facility.
- Proof-Test ProgramsOperations-ready procedures developed to maintain safety integrity throughout the life of the facility.
- Management of ChangeSafety documentation structured to remain maintainable through audits, personnel turnover, and future modifications.
Verified Performance
A SIL claim is only valid if it can be demonstrated. Verification work proves the installed system meets its required performance, with the math, the protocol, and the acceptance record on file.
- SIL VerificationPerformance verified against certified failure data, actual architecture, and defined proof-test intervals.
- Factory & Site Acceptance TestingProtection functions validated against the Safety Requirements Specification and Cause & Effect matrix.
Bring us a hazard that needs a defensible answer.
Greenfield SIS, brownfield modifications, SIL verification, or proof-test program development - we'll work with your team to establish the risk basis before defining the path forward.