What are the PSSRs and what do they cover? The Pressure Systems Safety Regulations 2000 (PSSR) cover the safe design and use of pressure systems with the aim to prevent serious injury from the hazard of stored energy (pressure) as a result of the failure of a pressure system or one of its component parts. The regulations are …
Pressure Relief Valves – Pressure equipment requires protection from over pressurisation. A common way to protect vessels is the installation of a pressure relief valve. A pressure relief device is actuated by inlet static pressure and designed to open during an emergency or abnormal conditions to prevent a rise of internal fluid pressure above the specified design value. This device …
Calculating Branch Connections: ASME B31.3 Para. 304.3.2 – Whenever a branch is added to the main pipe run (header) an opening is created by the removal of a predetermined amount of metal. We use Branch Connections: ASME B31.3 Para. 304.3.2 to consider the design. The header pipe is weakened as the metal removed is no longer there to resist the …
What is stress? Introduction In the most simplistic term, stress is simply a force divided by area. The most common unit we see in pressure equipment codes and standards is pounds per square inch (psi) for those that like imperial (and let’s face it, not many do). Or if you like to use SI units (metric) then we will often …
What is fitness for service? Fitness For Service (FFS) assessments are a set of methods that use quantitative data to determine if a degraded component is fit for continued service at the current operating parameters and to establish the useful remaining life of the component. Some case examples are found in this research paper. It is an analysis that …
Corrosion Basics Part 1 Salt is bad for your health! – Corrosion basics Definition: Corrosion is the degradation of a metal by its environment–it literally means to “eat-away”. Most metals do not naturally occur as a pure metal. In their natural state, they exist in the form of oxides. These metal oxides (or other metal compounds) must be refined to …
Allowable Stress – What’s it all about? Find out here. The tensile test is used to establish the tensile strength of steel. If a tensile force is applied to a steel bar it will have some extension. Up to the yield point, stress and strain will remain proportional, signified by the straight line in Fig. 1. Not all steels have …
Ductile- brittle transition temperature (DBTT) (Unit K) The temperature below which materials, in laboratory tests at least, are brittle, and above which they are ductile. Body-centred cubic transition metals (such as ferritic steels) are brittle below temperatures of about 0.1 Tm and non-metals and intermetallic compounds below 0.5 Tm where Tm is the absolute melting point. Face-centre cubic materials (such …
ASME PCC 2 Pressure Equipment Repair Appreciation Training Course. – Try the Quiz Repairs to Pressure Equipment: ASME PCC 2 Pressure Equipment Repair and In-Service Repair Codes. In the real world of plant operation, pressure equipment items commonly suffer corrosion, erosion, or mechanical damage and have to be repaired. For equipment built to a pressure equipment code (ASME, …
API Inspector Certifications – Which one is best? Where do I start? API Inspector Certifications – Which one is best? Find out Here. WHICH API IS MOST POPULAR? Statistically, across all countries, it’s API 570. You can see the stats on the API website, they report many of ICP exam statistics. Industry feedback tells us it’s accepted as being the …