Are delivered in lengths of 12 and 16 m.
Curved pipes are delivered with embedded copper wires for surveillance.
When ordering please state length, bending angle, and bending direction.
Direction:
When ordering it is stated in which direction the pipes must be bent:
← left
→ right
The direction is defined on the basis of the tinned wire being to the right, and the blank copper wire to the left.
Geometry:
vp = bending angle, degrees
Rp = design radius, m
L1 = length of straight pipe ends, m
Tol = tolerance of angle, degrees
The tolerance is calculated as 1/3 of the elastic angle of the steel ppe.
Manufactured curved pipes are delivered in angles in whole 1° intervals.
In addition max. bending angle, v°p must be determined in relation to the stress level, under which it is being installed, see Design for TwinPipes.