Instrument design for Class D clean areas
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When designing and selecting instruments for clean areas, should sanitary-type instruments be chosen? What are the various connection methods? Looking at the samples, each company uses a different design: Rosemount tri-clamp, EJA has assigned an IDF code, and there are also sanitary connections in accordance with DIN32767/ISO2852 – which one should be chosen? Moreover, the interface provided by the process is a standard flange interface; what accessories are required for installation?
Hope to get help from experts! ! !
So, the Class D clean area isn’t used for pharmaceuticals, right? The clamp connection type is one recommended by ASME-BPE for use in the clean manufacturing industry; it differs from the threading and flange methods commonly used in our chemical industry. The DIN and ISO standards mentioned later are both standards for stainless steel pipes; the standard corresponding to ISO 2852 should be DIN 11850. Please take another look
I am also working on cleaning projects; it depends on the requirements for the pipes – if BA-grade polishing is required, then the instruments should also meet corresponding standards. Both flange and clamp connections are acceptable
Do sanitary instruments come with flange connections, or is polishing sufficient for regular instruments?
I checked DIN32767, and it is indeed the dimension standard for clamps.
What was said upstairs is correct – a clean area doesn’t necessarily mean that sanitary-type instruments have to be chosen； Check the requirements of your medium