Instruction book
135
10 Pressure equipment directives
10.1 Pressure equipment directives
PED instructions
ZR/ZT 55 Pack up to ZR/ZT 90 Pack are pressure assemblies of cat. I according to 97/23/EC.
ZR/ZT 55 Full-Feature up to ZR/ZT 90 Full-Feature are pressure assemblies of cat. III according to 97/23/
EC.
Parts of article 3.3 of 97/23/EC are subject to good engineering practice.
Parts of category I according to 97/23/EC are integrated into the machine and fall under the exclusion of article
I, section 3.6.
Parts subject to the Simple Pressure Vessel Directive 87/404/EEC are excluded from 97/23/EC according to
article I, section 3.3.
The following pressure bearing parts are of category higher than I :
• Safety valve: Category IV
Design code: AD-Merkblätter, A2
• Vessel IMD260: Category III
Design pressure 11 bar(e) (159.54 psig), content 91 l (24.02 US gal / 20.02 Imp gal / 3.19 cu.ft)
Design standard: ASME section VIII div. 1.
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