La. Admin. Code tit. 51 § XIV-315

Current through Register Vol. 50, No. 12, December 20, 2024

Section XIV-315 - Use of Joints

A. Threaded Pipe to Cast Iron. Joints between steel, brass, or copper pipe, and cast iron pipe shall be either caulked or threaded, formed as provided in §313. B of this code, or shall be formed with approved adapter fittings.

B. Lead to Cast Iron or Steel. Joints between lead and cast iron or steel pipe shall be formed by means of wiped joints and a caulking ferrule, soldering nipple, or bushing as provided in §313. C of this code.

C. Connection of Dissimilar Metals. There shall be no commingling of materials except through the use of proper dielectric fittings that make different kinds of metal pipe compatible.

D. Welding or Brazing. Brazing or welding shall be performed in accordance with requirements of recognized published standards of practice and by licensed or otherwise qualified mechanics. All brazing on medical gas systems shall be performed by certified installers meeting the requirements of ASME Boiler and Pressure Vessel Code, Section IX, Welding and Brazing Qualifications, or AWS B 2.2/B 2.2M, Brazing Procedure and Performance Qualification, as referenced in Chapter 14 of this code.

E. Slip Joints. In drainage piping, slip joints may be used on both sides of the trap and in the trap seal. Slip joints in water piping may be used on the exposed fixture supply only.

F. Expansion Joints. Expansion joints must be accessible and may be used where necessary to provide for expansion and contraction of the pipes.

G. Mechanically Formed Tee Connections. The following applies to mechanically formed tee connections.

1. Mechanically extracted collars shall be formed in a continuous operation consisting of drilling a pilot hole and drawing out the tube surface to form a collar having a height not less than three times the thickness of the tube wall.

2. The branch shall be notched to conform to the inner curve of the run tube and dimpled to insure that penetration of the branch tube into the collar is of sufficient depth for brazing and that the branch tube does not obstruct the flow in the main line tube.

3. All joints shall be brazed in accordance with 621.D. Soft soldered joints shall not be permitted.

La. Admin. Code tit. 51, § XIV-315

Promulgated by the Department of Health and Hospitals, Office of Public Health, LR 38:2813 (November 2012).

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