Louisiana Administrative Code
Title 51 - PUBLIC HEALTH-SANITARY CODE
Part XIV - Plumbing
Chapter 3 - General Regulations
Section XIV-317 - Anchors, Hangers and Supports

Universal Citation: LA Admin Code XIV-317

Current through Register Vol. 50, No. 3, March 20, 2024

A. General. The following apply to anchors, hangers and supports.

1. Strains and Stresses. Piping in a plumbing system shall be installed without undue strains or stresses and provision shall be made for expansion, contraction, and structural settlement.

2. Material. Anchors, hangers, and supports for pipe shall be of sufficient strength to maintain their proportionate share of the pipe alignment and to prevent sagging. Anchors, hangers or supports shall be of a material which is compatible with the pipe and will not promote galvanic action. Anchors, hangers or supports installed below grade(g) which may come into contact with the soil shall be of a material which is compatible with the type of soil to which it is exposed to prevent the weakening of the device over time due to corrosion, etc.

3. Attachment. Anchors, hangers and supports shall be securely attached to the building construction.

B. Vertical Piping. The following applies to the support of pipes installed vertically.

1. Attachment. Vertical piping shall be secured at sufficiently close intervals to keep the pipe in alignment and carry the weight of the pipe and contents.

2. Cast Iron Soil Pipe. Cast iron soil pipe shall be supported at the base and at each story level at intervals not exceeding 15 ft (4572 mm).

3. Threaded Pipe. Threaded pipe shall be supported at the base and at not less than every other story at intervals not exceeding 30 ft (9144 mm).

4. Copper Tube. Copper tube shall be supported at each story for piping 1 1/2 inches and over and at not more than 4 ft (1219 mm) intervals for piping 1 1/4 inches and smaller.

5. Lead Pipe. Lead pipe shall be supported at intervals not exceeding 4 ft (1219 mm).

6. Plastic Pipe. Plastic piping shall be supported at each story for piping 2 inches or over and not more than 4 foot (1219 mm) intervals for piping 1 1/2 inches or under.

7. Borosilicate Glass Pipe. Borosilicate glass pipe shall be supported at every floor for 3-inch, 4-inch and 6-inch diameter vertical runs and at every other floor for sizes 2 inches and smaller. Padded riser clamps with 1/4-inch (6.35 mm) thick elastomeric padding shall be used, restricting sideward as well as downward movement.

C. Horizontal Piping. The following applies to the support of pipes installed horizontally.

1. Supports. Horizontal piping shall be supported at sufficiently close intervals to keep it in alignment and prevent sagging.

2. Cast Iron Soil Pipe. Cast iron soil pipe shall be supported at not more than 5 ft (1524 mm) intervals on 5 ft (1524 mm) lengths and 10 ft (3048 mm) intervals on 10 ft (3048 mm) lengths. Hangers shall be located as near hubs as possible.

3. Threaded Pipe. Threaded pipe shall be supported at approximate 12 ft (3658 mm) intervals.

4. Copper Tubing. Copper tube shall be supported at approximate 8 ft (2439 mm) intervals for tubing 1-inch and smaller and 10 ft (3048 mm) intervals for tubing 1 1/4 inches and larger.

5. Lead Pipe. Lead pipe shall be supported by strips or otherwise for its entire length.

6. Plastic Pipe. Plastic piping shall be supported at not more than 4 ft (1219 mm) intervals.

7. Borosilicate Glass Pipe. Borosilicate glass pipe shall be supported in horizontal runs every 8 to 10 ft (2438 to 3048 mm), never closer unless there are more than two joints in the 8 to 10 ft (2438 to 3048 mm) section. Padded hangers shall be used, of either the clevis or trapeze type.

D. Repair or Replacement. Piping in concrete or masonry walls or footings shall be placed or installed in chases or recesses which will permit access to the piping for repairs or replacement.

E. Base of Stacks. The following applies to the support and off-loading of the base of soil, waste and vent stacks.

1. Supports. The base of all soil, waste and vent stacks shall be supported to the satisfaction of the plumbing official.

2. Piping Material. Other piping material shall be so anchored as to take the load off the stack at the base.

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(7) and R.S. 40:5(2)(3)(7)(9)(16)(17)(20).

Disclaimer: These regulations may not be the most recent version. Louisiana may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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