Pvc Pipe Support Spacing Table Standards

If you are working on an inspected job you will also need to be aware of any specific code requirements for pipe support in your area.

Pvc pipe support spacing table standards.

Center to center spacing 1 2 o d of the bigger size pipe flange insulation thickness of bigger size pipe if applicable 25 mm 1 2 o d of the smaller size pipe insulation thickness of smaller size pipe if applicable. The span is 4 ft for pipe up to 6 ft for 4 schedule 40 pipe at ambient temperature. These spacings do not allow for additional extraneous loadings. For pvc pipe the spacing depends on the pipe schedule and operating temperature.

The basic principle for deciding the spacing the pipes running parallel to each other is. In particular the application of asme b31 3 requires compliance with the inspector qualification. However for the same class of pipes pvc o and pvc m will show increased deflection between the supports. These spacings are also acceptable for pvc o and pvc m pipes.

Pvc pipe schedule 40. Maximum support spacing feet nps. Cpvc pipes schedule 40 cpvc pipes schedule 80. Supports should at the very least be compliant with all codes and regulations you will face.

Maximum spacing between supports at different temperatures can be found in the tables below. Lanl engineering standards manual pd342 chapter 17 pressure safety section d20 b31 3 g asme b31 3 process piping guide rev. Hangers supports for sch40 and sch80 pvc and cpvc pipe. Maximum support spacing for cpvc chlorinated poly vinyl chloride pipes depends on the operating temperature.

Support spacing should be in accordance with applicable plumbing and building codes. The table below from as nzs 2032 shows the support spacing in metres for pvc pipe carrying water at 20 c. Approximately 1 ft more for schedule 80 and half that spacing at 150 f. Proper support selection and spacing is critical to prevent stress concentration areas as the result of weight loading bending stress the effects of thermal expansion contraction and to limit pipe displacement sag.

Inches operating temperature of 60.