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HRSG Inspection Planning Guide
Inspection is part of routine maintenance for any Heat Recovery Steam Generator (HRSG). Visual inspections are performed at regular intervals in accordance with the requirements of regulatory bodies and insurers.
Tetra Engineering Group, Inc. is proud to announce that we have achieved an “R” Stamp for Design for Alterations by the National Board of Boiler and Pressure Vessel Inspectors (NBIC). This certification authorizes us to develop and implement modifications to Heat Recovery Steam Generators (HRSGs), boilers, and pressure vessels designed to ASME Boiler & Pressure Vessel Code Sections I and VIII.
The certification encompasses a wide range of critical components, including boiler piping, safety valve capacity, heat exchange surfaces, steam drums, headers, and desuperheater spray systems, among others. Tetra Engineering's team includes seasoned engineers with extensive experience working on the design and fabrication of HRSGs and boilers supplied by industry leaders such as Alstom, GE, and Foster Wheeler.
Achieving the R Stamp means that every alteration design undergoes rigorous quality control and review. All modifications are carefully evaluated and approved by our third-party Authorized Inspector (AI) before submission to the NBIC. This process ensures compliance with the highest industry standards, providing a seamless solution for your repair contractors, who can use our approved design package directly for their projects.
This certification solidifies Tetra Engineering’s position as a trusted partner in the boiler and pressure vessel engineering sector, offering expertise in HRSG and boiler alterations.
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Inspection is part of routine maintenance for any Heat Recovery Steam Generator (HRSG). Visual inspections are performed at regular intervals in accordance with the requirements of regulatory bodies and insurers.
At Combined Cycle Power Plants the Heat Recovery Steam Generator (HRSG) is an easily-overlooked, but key component, providing steam to the steam turbine and to attached process steam hosts. While base-loaded HRSGs tend to be the most reliable - cycled or two-shifted plants suffering from accelerated damage - the importance of allocating sufficient resources to maintenance of the HRSG is often only realised in hindsight.
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Since 2007 the ASME B31.1 Power Piping Code has included Chapter VII, establishing mandatory requirements for Operation and Maintenance. The key elements of this program are discussed here, and require that Operators outline a detailed maintenance plan for their Covered Piping Systems (CPSs). The Code also requires that operators perform regular Condition Assessments of their CPS ensuring that relevant degradation mechanisms are being covered.
