PSSR2000
Thorough Examinations in line with your written scheme of examination & PSSR
Each vessel and system protective device which form part of your pressure system will fall under PSSR, the actions required may differ from item to item, and also depend on the amount of stored of energy within the vessel(s). None the less, each item undergoes a rigorous examination by our Engineer Surveyors, ensuring your pressure system is fit for purpose.
Should your vessels amount of stored energy exceed that of 250 bar/litres, then the item will have to be examined in accordance with a written scheme of examination. To acquire your vessels bar/litre rating, you must multiply the vessels volume by its safe operating limit. For example, a 25 litre vessel, with a safe operating limit of 10 bar. 25 x 10 = 250 bar/litres, and therefore requires a written scheme of examination, prior to examinations taking place.

Our Engineer Surveyor will first request access to your written scheme of examination. If you don’t have one present, our Engineer Surveyor will draft one up whilst on site, so your examinations can take place. With the vessel out of service, and drained, our engineer surveyor will then do a visual assessment of the structure. A visual external and internal examination of the vessel (where possible) will be carried out. The vessels system protective devices (safety valves, pressure gauges etc) will be removed and tested against our Engineer Surveyors calibrated equipment, ensuring safe operation.
Our Engineer Surveyor may carry out NDT tests to supplement their examination with the use of their ultrasonic thickness gauge. They may request an external company to carry out MPI (magnetic particle inspection), ultrasonic flaw detection, hydrostatic pressure test or DP (dye penetrant) should they think the integrity of the vessel is questionable, or the written scheme of examination states it.

A working examination will then be carried out, bringing the item/ vessel up to working pressure and ensuring the vessel is operating within its parameters. The Engineer Surveyor will also want to verify, if fitted, any temperature cut outs, safety switches and carry out an accumulation test of the safety valve.
A full, detailed report of thorough examination will then be issued, stating any defects or recommendations noted by our Engineer Surveyor.