Temporary Field Repairs (PE Pipe Repair) with Full Circle Band Clamp
Many system operators will have full circle band clamps in their specifications as a repair option. In general these types of repair clamps have proven to be a great method of temporary repair, especially in emergency situations.
Some general design considerations for the successful use of full circle band clamps
are as follows:
• Full Circle Band Clamps are recommended for repairs only where the pipe is able to maintain its structural integrity. Consider repairs only to a clean-cut round
hole or deep scratches or gouges of maximum dimension, less than the nominal diameter of the pipe divided by three. Do not use band clamps when the pipe
has cracks, jagged punctures, long tears, or deep scratches or gouges which could propagate outside the clamp under anticipated field loads.
• Do not exceed the manufacturer’s recommended maximum operating parameters such as temperature and pressure.
• The installer should always follow the clamp manufacturer’s recommend installation guidelines. Whenever possible, use a product that has been specifically designed for use with polyethylene pipe.
• The manufacturer should always be consulted on the use of their product on polyethylene pipe if the clamp was not manufactured specifically for use with polyethylene pipe.
• Pipe movement due to thermal expansion, thermal contraction and creep, as well as, surge events must be considered when repairing polyethylene pipe with a full circle band clamp.
• Generally, full circle band clamps are intended for use in underground
applications. If your application is of a different nature, contact the manufacturer of the band clamp.
If the band clamp is to be used as a permanent repair, contact the fitting manufacturer
for the suitability of use as a permanent repair.