I have always understood the standard to be the nominal diameter - like this:
Pipe bends are classified according to the centerline radius (CLR) of the bend as a ratio to the nominal pipe diameter.
For example, 4″ N.P.S. pipe which is bent on a 6″ CLR is classified as a 1½D Bend (1½ times the...
A 9D pipe bend is where the bend radius is 9 times the pipe nominal diameter.
So as you specified a 3 inch diameter pipe, the radius of the bend would be 27 inches or 685.8mm
URL: http://www.conformance.co.uk/kbclook/index.php?aktion=artikel&rubrik=004&id=39&lang=en
CE Marking: Who is responsible for signing the Declaration of
Conformity and what is their liability in court?
The following should at least help to clarify matters a bit.
The Declaration has two...
Yes they are considered as piping by our NoBo and the (different) NoBo of our sister company in France.
I believe guideline A-09 applies:
'Individual piping components, such as a pipe or system of pipes, tubing, fittings, expansion bellows, hoses, or other pressure bearing components are not...
As XL83NL says the guidelines suggest that pipe fittings do not have to be subject to PED, however a Tee can be supplied CE marked.
We manufacture and supply PTFE line pipe & fittings and all are CE marked (where appropriate).
Requirements for CE marking of these parts are similar to those for...
We use appendix 13 to design heat exchangers, spefically the rectangular steelwork around a graphite block.
As far as we are aware it is the only code that covers rectangular vessels.
Does anyone have an Autocad block of a man in a hard hat?
The type that is used to indicate scale on plant layouts etc. Front view would be best, but side view would do.
I thought they would be easy to find - but apparently not, little old men in flat caps with walking sticks are no problem, and...
