The finished products from the pharmaceutical design firm do not include data sheets for special valves and piping fittings; how can this be resolved?
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This post was last edited by A few characters on 2015-6-15 16:41. Special valves and pipe accessories include: safety valves, rupture discs, steam traps, flow control orifices, pressure relief valves, breather valves, pipe filters, silencers, flame arrestors, pipe mixers, sight glasses, eyewash stations, emergency showers, etc. Medical design firms do not have data sheets for these special valves and pipe accessories – how can this be addressed? Especially the first few that have a direct impact on safety are absent. After spending time together, I realized that no one in our company knows how to calculate these things. I pretended not to know either; should I bring it up at an appropriate time? During the pipeline design process, there is no table for branch pipes either (all are treated as tees); how can this issue be resolved? Wait, in every aspect, there’s definitely a big gap compared to the compound. My question is: Are these gaps tolerable? Are these things optional or necessary?
It is irresponsible of the designers to not provide these things; it’s possible that their skills are limited, but the regulations and standards are available – without any documents, it’s simply irresponsible! It’s absolutely intolerable! It involves safety hazards; human lives are at stake!
Another point is that the branch pipe list can’t possibly consist only of tees; what if there’s a need to connect small pipes and large pipes?
There’s nothing to break here; it’s a matter of design. Ask him if he wants to do it – you’re not a design institute anyway; would you dare to handle such documents on your own? Even if you could, you shouldn’t do it; otherwise what’s the need for a design institute?
What size valve should be used, and how is it calculated? Traffic?
This is typical carelessness; just scold them. Owners can be really fierce these days~
What valve are you talking about? An ordinary valve? Please take a look at the post content yourself
The standards selection, approaches, and practices in pharmaceutical design institutes differ somewhat from those in chemical engineering design. But as the one who pays, you need to have an air of dominance – the attitude that I am the one who’s funding things, and whatever I say is right, even if it’s not actually right. Let’s go to the design institute first and have a meal there; as for whether something will be produced or not, we’ll discuss that later! :lol:lol
Actually, the owner’s dilemma was also one I once faced. I also work in chemical engineering; later I switched to the field of fine chemicals and pharmaceutical intermediates. And then I realized that, oh my god, they’re from a completely different world from us – their standards for working are different! It will get better over time as they integrate with each other. The risks associated with medicine are much lower, and most reactions occur under normal pressure; therefore, not much attention is paid to pipelines and valves. Instead, the structure, appearance, and environment of the containers are what they focus on
It’s all part of the same chemical engineering process; however, due to the differences in their respective industries, there are significant variations in projects handled by pharmaceutical design institutes, light industry design institutes, and petrochemical design institutes. In particular, some people, who don’t have the necessary expertise, claim outright that these design institutes are not responsible for such tasks. This forced some owners to leave all the calculations to the supplier.
The technology related to process packages and unit devices in the pharmaceutical and chemical industries is indeed in the hands of equipment suppliers and project owners – believe it or not! ! The approach in the pharmaceutical and chemical industry is vastly different from what we commonly refer to as the large-scale chemical industry approach; they focus on cleanliness, structural residues, cleaning procedures, validation methods, and so on. They asked: What is automation? Can it be eaten?