Are the pipe openings and reductions still appropriate?
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These days, companies require the use of pre-made tees and reducers during installation, but in the book I read, \"Pipeline Installation Techniques and Common Materials,\" many methods for creating openings directly in pipes are described; it is also possible to weld the pipe at the desired spot using gas welding and then forge it with a hammer. I would like to ask the experts: is the content of this book no longer suitable for the installation requirements of current devices, or are these technologies not allowed to be used in devices with high requirements, but can they be used in ordinary pipelines with lower requirements? We are currently at normal temperature and pressure, with no flammable, explosive, toxic, or harmful substances present. Can we use the method of directly opening the container, heating it, and then forging it to reduce its diameter? Thank you all for your valuable advice!
Currently, prefabricated tees and reduced-diameter tees are being used. In cases where there is really no other option, for non-hazardous media and pressure pipelines, direct opening is permitted with the customer’s consent or acquiescence.
I agree with this statement; that’s what we do as well.
Hehe, yes, this needs to be discussed with the property owner. However, this approach can only be used by Party B as a way to save on investment. This method isn’t very good, especially for those longitudinal welds with a reduced diameter; for reference only.
For the non-flammable among the five poisons, this method can be used; I’ve seen many people do it this way
It’s certainly possible to do that, but it’s time-consuming and labor-intensive; it only saves money. You need to weigh the pros and cons for yourself.
It is generally used for water supply and drainage pipes, that is, Class D pipes.
It must be non-toxic and harmless, non-flammable, with moderate temperatures and pressures; moreover, the consent or acceptance of the property owner and supervisor is required. Generally, this approach can only be used for pipes in utility systems, as the practice of reducing pipe diameter is no longer permitted these days
It’s completely possible to do that. In fact, doing this is more expensive. In reality, pipe fittings are quite inexpensive; it’s mainly the labor costs that are high. Additionally, the lengthy construction period can delay equipment operation and affect production. It’s not worth it.