About> Introduction
  The best motivation to design any new product is the need to solve a problem. Steel pipe is an ideal solution to meet the needs of trenchless underground pipe installations. The problem is that construction efficiency is hindered by the expense of lost production hours and the questionable integrity and specialized payroll associated with in-field welding of joints. The invention of the Permalok Interlocking Pipe Joining System provides a dramatic advancement to the quality of tubular steel construction by providing a pre-installed precision joint connection which is quickly, easily and permanently mated during field construction.

Permalok eliminates the need for in-field welding and the down time associated with it. The Permalok connection is specifically designed for the trenchless excavation industry because it is flush with the interior and exterior surfaces of the pipe. Joint quality is further enhanced because the Permalok connection is consistently round, true and perpendicular to the pipe axis. Its unique stepped profile makes stabbing and aligning easy and quick. What’s more, the Permalok design, combined with the use of a sealant such as RTV Silicone, will not leak even under considerable pressure.

 
 
Permalok Corporation
472 Paul Avenue
P.O. Box 10970
St. Louis, MO 63135
 

Phone:          314-524-1900
Toll-Free:      800-280-5511 USA & Canada

                       0800-011-2550 UK
Fax:               314-524-5702
Email:           permalok@permalok.com