Seals open space between a steel casing and plastic, gas, or utility pipe. Seal consists of EPDM rubber tubing that is expanded over a removable core and shrinks in diameter.
Modified Industry Description
COLD SHRINK INSERTION SEAL
3M™ 054007-49886 PS Series Cold Shrink Insertion Seal, For Use With 5/8 in, 7/8 in OD PE Pipe, 3/4 in, 1 in IPS Steel Casement and 6 in L Relaxed Tube, EPDM Rubber, Black
3M™ pipe insertion seals are based on 3M™ cold shrink technology. Each seal consists of an EPDM tubber tube which is expanded over a removable core. The EPDM seal shrinks in diameter when the core ribbon is removed by unwinding with a counter-clockwise motion. No tools, heat or chemicals are needed. PS series pipe insertion seals are used by gas utilities to seal the open space between a steel casing and plastic gas pipe. Insertion and encasement are two common applications for the PS products. For insertion, workers install a length of polyethylene gas pipe inside an existing steel service line to avoid costly and disruptive excavation. Encasement is a similar operation, but in this situation the steel casement serves to protect the plastic pipe (when crossing under roadways, for example). In both situations, PS products are used to seal off the air pocket in the steel casement. This prevents the potentially dangerous migration of gas, plus seals against entry of water.