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Are there fittings in the pipeline that change the diameter from small to large?

2008-01-23View Original

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There is such a problem: in pipeline installation projects, there is a pipe with a diameter of DN80, while the interface at the end device is DN100. What if a reduction in diameter is made before the device interface, changing it from DN80 to DN100? Do you think this would work?
Reply #22008-01-23
Sure, as long as the pressure level is the same. However, the flow rate will change a bit
Reply #32008-01-23
Sure! It’s possible to do that. Since it’s about piping, the equipment definitely can’t be changed; this is the only option.
Reply #42008-01-23
Of course, it’s possible to use an adapter pipe, which is what is commonly referred to as a reducing fitting. Make sure to use consistent pressure. Also, there is pressure loss at the large and small ends.
Reply #52008-01-24
Thank you, thank you all; let’s keep in touch more often! :)
Reply #62008-01-24
It seems this is the only option; the impact should be minimal, so it’s fine.
Reply #72008-01-24
Pressure and flow rate will decrease, while everything else will remain unchanged
Reply #82009-02-01
The design needs to be considered as a whole, and it can only be installed in this way. But there is just a loss of pressure.
Reply #92009-02-02
It’s completely fine; this approach is used frequently in the renovation projects at our factory. As long as it has no negative impact on the medium being conveyed and does not increase the equipment’s power consumption, there is no problem.
Reply #102009-02-04
In practice, this situation often occurs, especially during equipment upgrades and renovations.
Reply #112009-02-06
Of course it’s possible; it’s quite common
Reply #122009-02-12
It can be changed; there are many such structures in the design of the equipment, and some locations require it this way.
Reply #132009-02-13
By the way, is it possible to change from a larger diameter to a smaller one?
Reply #142009-02-13
It’s also possible to go from large to small; in pipes, the medium flowing through them usually has a specified flow rate, so it is necessary to check whether the flow rate remains within the prescribed range after the diameter is changed.
Reply #152009-02-14
During the construction of engineering projects, it is common for the large diameter to change to a smaller diameter or for the small diameter to change to a larger one; pressure, flow rate, and other factors also change, so specific considerations must be made based on the actual operating conditions.
Reply #162009-03-01
It’s possible, and in actual engineering projects, corresponding adjustments need to be made based on the specific circumstances; there’s no book that remains relevant forever.
Reply #172009-03-03
You can directly look up the standards for reducers, as reducers of this specification are available on the market.
Reply #182009-03-04
Sure, as long as the pressure level is the same. You can directly look up the reducer for this specification.
Reply #192009-03-04
If the flow rate at a DN80 pipe diameter meets the requirements of the equipment, it is recommended to weld an adapter. If the flow rate does not meet the equipment’s requirements, replace all the DN80 pipes with DN100 ones. Be sure to determine the required flow rate of the equipment beforehand before making a decision; careful consideration is essential.
Reply #202009-03-10
It should be possible, but there are a few issues to keep in mind! 1. Pressure change 2. Changes in flow rate
Reply #212009-03-12
Size changes are both possible; otherwise, it won’t be possible to purchase products with varying diameters. Hehe. But if strict pressure requirements apply, that’s another matter

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