Pressure System Examinations & Testing for Wind Turbines (PSSR)

PSSR in the Wind Sector

Under PSSR, owners of pressure systems must ensure their equipment is properly designed, operated and maintained and is subject to a Written Scheme of Examination (WSE). On wind turbines, pressure systems are often safety-critical and located in challenging, difficult-to-access environments.

Certex UK supports you with:

• Development and review of Written Schemes of Examination
• Statutory examinations in accordance with PSSR
• Testing and verification of safety devices and protective systems
• Clear documentation and traceable records for audits and regulators

What We Examine and Test on Wind Turbines

We examine and test a wide range of turbine pressure systems and associated safety devices, including but not limited to:

• Hydraulic systems: brake systems, pitch control, yaw systems and hydraulic accumulators
• Gas-charged components: accumulators and dampers
• Compressed air systems: compressors, receivers, air dryers and distribution pipework
• Cooling and fluid systems: pressurised cooling circuits and fluid handling systems
• Safety and control devices: pressure relief valves, safety valves, gauges, switches and interlocks

Our engineers focus on both the integrity of the pressure boundary and the correct function of protective devices, in line with the agreed Written Scheme.

Where We Work

Certex UK supports wind operators and OEMs across the UK and worldwide, including:

• Onshore wind farms
• Offshore wind farms (fixed and floating)
• Offshore substations and transition pieces
• OEM service operations and O&M bases

We can integrate PSSR examinations into wider turbine inspection campaigns to minimise downtime and site visits.

Digital Asset & Certification Management

All PSSR examinations are supported by our digital asset and certification management system, providing:

• A central register of turbine pressure systems and safety devices
• Online access to Written Schemes of Examination, reports and certificates
• Visibility of examination status, due dates and outstanding actions
• Exportable data to support audits, regulatory inspections and internal governance

This is especially valuable for operators managing large, geographically dispersed wind fleets.

How Our PSSR Examination Service Works

• Review of existing documentation – We assess your current Written Schemes of Examination, risk assessments and asset registers.
• Planning & coordination – We align examinations with service campaigns, turbine access windows and site safety requirements.
• On-turbine examination and testing – Our competent engineers carry out PSSR examinations and functional testing of safety devices on-site (onshore or offshore).
• Clear reporting – You receive structured reports confirming compliance status, detailing defects, non-conformances and recommended actions.
• Support with remedial work – Where issues are identified, we can support with follow-up inspections, retesting and coordination of repairs.

Why Choose Certex UK for PSSR on Wind Turbines?

• Competent engineers with experience in pressure systems and wind turbine environments
• Specialist knowledge of turbine hydraulics, pneumatics and safety devices
• Onshore and offshore capability, with teams able to mobilise worldwide
• Integration with other services, including LOLER and PUWER inspections, height safety and turbine safety equipment
• Digital systems that enhance traceability, compliance control and audit readiness
• Strong focus on safety and reliability, helping you reduce risk, downtime and lifecycle costs

·        Training capability - Delivery of LEEA-accredited lifting, inspection and safety training, including bespoke programmes delivered on-site or locally to support workforce competence and compliance