EAC Testing of Equipment Operating Under Excessive Pressure | TR CU 032
Testing of equipment operating under excessive pressure is an important element in the assessment of conformity to Technical Regulation of the Customs Union 032/2013. Testing of equipment is carried out both when confirming compliance in the form of a certificate, as well as confirming compliance in the form of a declaration.
For a certificate TR CU 032, testing is usually conducted on a production facility by an accredited expert from a certification body. For a declaration, testing can be conducted in a laboratory in the Customs Union if it is possible to deliver a sample of a product, otherwise testing can be also conducted on a production facility.
The main potential danger for equipment operating under overpressure is its destruction during exploitation, which results in the release of energy from a working medium located in a confined space of an equipment casing.
The main tests carried out in order to assess the conformity of products with the requirements of the technical regulations of TR CU 032 are checking strength, density of the material and welds, tightness of elements of equipment operating under excessive pressure, assessing the presence of defects in welded joints.
There are several types of testing for EAC TR CU 032:
- Strength testing of equipment’s material and welds. The strength test is carried out by creating a test pressure in the equipment, the size of which, as a rule, exceeds the maximum overpressure that occurs during the normal course of the working process, and holding the equipment under the influence of the test pressure for a specified time.
- Density and impermeability testing of equipment’s elements, material and welds. Testing method depends on the type of testing substance: gas or liquid. Typically, equipment under pressure is filled with testing substance and the results are measured (depending on the testing substance) by a leak detector or pressure decrease or appearance of bubbles.
- Mechanical testing of welded joints. In most cases, destructive tests for equipment operating under excessive pressure include tests conducted to assess the ability of welded joints of equipment to withstand static and dynamic loads.
- Non-destruction control. Non-destructive testing is used to determine the presence of defects in a main metal and welded joints that affect strength and integrity of a structure. Non-destructive testing includes: visual, ultrasonic, x-ray, magnetic particle and penetration testing.
Testing is an essential element in the assessment the conformity of products with the requirements of the technical regulation. The correct application of testing methods largely determines the reliability of the conclusions confirming the compliance of equipment operating under excess pressure with the requirements of TR CU 032.
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