Can the neck of a long-neck flange be shortened?
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Can the neck of a long-neck flange be shortened? The standard specifies a total height of 130; can my total height be reduced to 100?
Long-neck flanges are generally used for high pressures. If the specification is too high, it can be reduced slightly through machining, but this is not recommended.
It can be reduced slightly through machining, but this is not recommended.
For standard flanges, they can generally only be lengthened without affecting their strength; if shortening them is necessary, calculations must be carried out to determine the appropriate length – they cannot be shortened arbitrarily.
If flanges of the standard specified sizes are not used, they should be calculated as non-standard flanges, and a calculation report should be provided