Small pipe fitting reinforcement ring dimensions
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Who has the dimensions of the reinforcement rings for small nozzles of DN20, DN25, DN32, and DN40? ? ? ? ? Send a thank you, please..............
Refer to the relevant standards and design it yourself; it’s sufficient to calculate that the reinforcement area is adequate. Generally, for such small connections, as long as they meet the requirements of GB150, no reinforcement calculation is necessary
Does anyone have a ready-made size chart? Thank you :) :)
With such a small diameter pipe, it’s simply reinforced using a thick-walled pipe
It is recommended to design it as a forged pipe for overall reinforcement
Small nozzles generally do not require reinforcement rings.
It is recommended that overall reinforcement of thick-walled pipes is more convenient; manufacturing small reinforcement rings is relatively troublesome.
Small fittings generally do not require reinforcement, as the reduction in their opening strength is minimal, and the fitting itself already serves to provide reinforcement. If reinforcement rings are to be used, those for larger fittings have an outer diameter determined as twice the nominal diameter; small fittings can also be reinforced in this way.
For fittings smaller than DN50, design institutes generally use thick-walled forgings for reinforcement. Especially under high pressure
For small connectors, overall reinforcement is usually sufficient; no reinforcement ring is needed
Look for GB21630-1999, which deals specifically with reinforcement pipes; there is also a standard specifically addressing reinforcement rings, namely JB4736-2002
For fittings with a DN50 size that is smaller, if it is necessary to install a reinforcement ring, we follow the specifications for DN50. That is, the outer diameter is 130.
If reinforcement is needed, just look for the reinforced pipe fitting series; most pipe fitting manufacturers have them.
:Q The original post was posted by mayan831224 on 2009-3-17 at 14:17. Try looking up GB21630-1999, which deals specifically with reinforcement pipes; there are also specific standards for reinforcement rings, such as JB4736-2002 and GB/T 21630-2008. Is the test method for the ignition distance of aerosols specified in these standards just a way to deceive people?
The reference standard can be designed by oneself; as long as the calculated reinforcement area is sufficient, that’s fine.
The standard specifies that the distance between the centers of two adjacent openings must be greater than twice the sum of their diameters; and when the nominal outer diameter of the fitting is 89 mm or less, it is sufficient as long as the minimum thickness of the fitting is at least 6 mm. No additional reinforcement is needed.
Stiffening rings are not recommended for fittings smaller than DN50; thick-walled pipes are usually used for reinforcement. If reinforcement rings must be used, only non-standard ones can be employed; the designs need to be created by oneself, with the reinforcement calculations still being carried out according to SW6.
Small nozzles generally do not require reinforcement; if reinforcement is needed, SW6 can be used for calculations to determine the dimensions of the reinforcement ring, such as its thickness and outer diameter. There are many situations in which a reinforcement ring cannot be used, such as high pressure, or when the medium is toxic or flammable
This requires that the design pressure be less than 2.7 MPa; if the design pressure exceeds this value, the wall thickness must be calculated regardless of the size of the pipe
Usually, the small pipe is simply thickened or reinforced using forged pipes; reinforcement rings are generally not used for reinforcement