What conditions must a heat exchanger meet in order to be exempt from inspection?
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The inner diameter must be less than 150 mm, the temperature must be below the boiling point – what is the limit for pressure? Do all of these conditions need to be met, or is it sufficient to meet just one of them? Newcomers might ask unprofessional questions; please forgive us
This post was last edited by hy_0619 on 2016-11-30 at 12:30. The relevant standards specify in detail that 1. The operating pressure (PW) should be ≥0.1 MPa (excluding hydrostatic pressure). 2. The inner diameter (for non-circular cross-sections, the maximum dimension) is ≥0.15 M, and the volume V is ≥0.025 M3. 3. The medium contained is a gas, a liquefied gas, or a liquid whose maximum operating temperature is greater than or equal to its standard boiling point. Only when all three of the above conditions are met is it considered a pressure vessel, and such pressure vessels require annual inspection
This post was last edited by ldx2008 on 2016-12-1 07:53. In addition, according to the newly implemented regulations, the pressure can be as low as 0.1 MPa, and the volume must be less than 30 L. Meeting one of them is sufficient
In the chemical industry, it’s necessary to pay attention to regulatory standards
Carefully read the tolerance specifications; items that fall outside these specifications do not require inspection.
New to sales :D
Equipment that requires supervision and inspection must meet all 3 conditions: 1) the operating pressure must be at least 0.1 MPa; 2) the volume must be at least 0.030 m3, with an inner diameter of at least 150 mm； 3 The filling medium is gas, liquefied gas, or a liquid whose maximum operating temperature is higher than or equal to its standard boiling point
Learn about TSG 21-2016 \"Regulations for the Safety Technical Inspection of Fixed Pressure Vessels\"!