Guideline A-47
No. Reason:A shell & tube heat exchanger is one vessel with two chambers (PED Guideline B-19); it is not permissible to have one chamber of a vessel separately CE-marked. A bundle is a component of a heat exchanger, it is not an item of pressure equipment. See also PED Guidelines A-03, A-22, D-09 and G-19
Guideline B-04
Heat exchangers are considered to be vessels. As an exception, heat exchangers which consist of straight or bent pipes which may be connected by common circular header(s) made also from pipe are classified according to Article 2 (3) last sentence as piping if, and only if, the three following conditions are met: For such heat […]
Guideline B-19
They constitute two chambers of the same vessel. Technical requirements and conformity assessment procedure to be applied are determined as follows: The technical requirements to be applied to the common boundary are those of the highest category of the two chambers. Hazard analysis of individual chambers must take account of the effect of any perceived […]
Guideline B-34
Hermetically sealed refrigeration compressors are pressure vessels. Usually, a compressor is composed of two chambers : the low pressure side PS1, the volume of which is V1, and the high pressure side PS2, the volume of which is V2. The equalizing pressure during standstill is PS3 (always higher than PS1). The category is the higher […]