Standard Guide for Selection and Use of Full-Encirclement-Type Band Clamps for Reinforcement or Repair of Punctures or Holes in Polyethylene Gas Pressure Pipe

Importancia y uso:

4.1 Full-encirclement-type band clamps are recommended for repairs only where the pipe is able to maintain its structural integrity. These clamps are not recommended for permanent repair of pipe where the damage could propagate outside the clamp under anticipated field conditions (see 5.1.1 for repair limitations). In such situations, it is recommended to cut out and replace the damaged pipe with a new piece. Clamps that are used for repair should comply with the manufacturer’s specifications for use and the manufacturer’s installation instructions should be followed.

4.2 These clamps may be used to cover holes left in the pipe from abandoned service line connections, purge points, and accidental punctures.

4.3 These clamps may be used to reinforce the pipe where the wall thickness has been reduced because of gouges or other irregularities.

4.4 Some users reinforce polyethylene pipe after it has been squeezed-off as a precaution against pipe damage that may have occurred during the squeeze-off process and as a means of ensuring that the pipe will not be squeezed-off again at the same location. Consult with the polyethylene pipe manufacturer as to the appropriateness of squeeze-off for their product, and for circumstances when reinforcement is recommended. See Guide F1041.

Subcomité:

F17.60

Referida por:

F0412-24A, F2785-21, F2945-18R23

Volúmen:

08.04

Número ICS:

21.060.70 (Clamps and staples)

Palabras clave:

damage; full-encirclement-type band clamp; hole; leak repair; pipe reinforcement; plastic pipe; puncture ;