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MULTI-AXIS® Plastic Lined Pipe
- Eliminates flange connections at elbows.
- Sections are bent at any angle up to 90° with a tolerance of
±1°.
- Reduces pressure drop across the bend and reduces energy costs.
- Longer bend radius (3 diameters vs. 1.5 diameters).
The Bending Process
Although the concept behind MULTI-AXIS® pipe is simple, successfully
bending swaged plastic-lined pipe is not. It is considerably more
difficult than bending unlined pipe. As for loose-lined pipe, it is
virtually impossible to bend without distorting the liner. The liner
in Resistoflex Plastic-Lined Pipe is locked into position and resists
distortion.
Resistoflex uses special bending equipment and proprietary manufacturing
techniques to provide bends in any angle up to 90° and compound
bends on a single section of pipe. MULTI-AXIS® pipe is a high-quality
product with dimensional tolerances of ± 0.125" (3.2mm), even
on pieces with multiple bends. Due to the complexity of the bending
operation, field bending of MULTI-AXIS® pipe is not available. MULTI-AXIS®
pipe can be supplied with
Class 150 steel rotatable flanges or with
plain ends that can be joined in the field with other plastic-lined
pipe sections using CONQUEST®
flangeless connections.
When considering MULTI-AXIS® pipe, it's important to carefully examine
directional changes in a system to determine whether the centerline-to-face
or centerline-to-centerline dimensional requirements of bent pipe can
be met within the parameters of the initial design. If not, design
adjustments may be required. |
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Minimum Lengths Required for
MULTI-AXIS® Plastic Lined Pipe |
90° Bends |
90° & 45° Bends |
45° Bends |
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Convert To Metric Units
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Pipe Size,
(in.) |
A |
B |
C |
D |
E |
| 1 |
6 1/8 |
11 3/8 |
8 1/2 |
4 1/4 |
6 3/4 |
| 1 1/2 |
9 3/16 |
15 3/16 |
12 1/2 |
6 7/16 |
9 3/4 |
| 2 |
11 1/4 |
18 1/4 |
14 5/8 |
8 |
10 3/4 |
| 3 |
15 |
26 11/16 |
22 |
10 |
15 3/4 |
| 4 |
19 3/4 |
36 1/2 |
29 1/2 |
12 7/8 |
22 1/4 |
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Tolerances
Center-center and center-face dimensions = +/- 1/8"
Bend angle = +/- 1°
Note: Angle can be within 1 degree of specified angle. If there is a
long run of straight pipe after the bend, this can result in the center
of the next bend or the face of the flare being offset an inch or more
from what was intended. In most cases, this can be compensated for in
the field installation. In the case of bolting MULTI-AXIS to flanged
equipment that is in a permanent fixed location, the offset may present
an installation problem.
Applicable Codes and Standards
MULTI-AXIS® pipe meets the ASTM F1545
standard specification for
Plastic-Lined Ferrous Metal Pipe, Fittings and Flanges.
MULTI-AXIS® pipe also meets certain ASME B31.3 requirements. |
"This page is a machine translation of the source page, which is written in
English. This translation is intended to provide a general idea of the
page's content, and is not guaranteed for accuracy."
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