The minimum
cold bending radius for SDR 11 pipe is 25 pipe diameters.
In practice, it turns out that wall thinning during stabilizer bar
cold bending rarely influences the strength of the radial area in view of a simultaneous work hardening of the pipe material.
In most cases, the necessary low temperature flexibility is assured, if a low temperature requirement of -40[degrees]C can be passed in the
cold bending test.
UV 3/16-20 can be installed by
cold bending, which Bayer says makes it a prime solution for tunnel vaults and window rows.
The new, easy-to-use RIDGID Manual Hydraulic Benders--available in 3/8-to-2-inch capacity (Model HB382) and 3/8-to 3-inch capacity (Model HB383)--are designed for precise
cold bending of standard gas pipe (DIN 2440), black steel schedule 40 (ASTM A53) pipe and stainless steel schedule 40 pipe.
* It is a workplace equipped by an automatic bending machine with medium frequency heating of the bent material; it is possible to use it for
cold bending also.
The new machinery is probably the largest
cold bending, three roll section bender ever made.
Bendco's pipe bending capabilities include structural bending through 36-inch wide flange,
cold bending 1/4-through 14-inch and inducing bending 1-through 36-inch pipe.