Rehabilitating Small Diameter Piping Systems

Title: Rehabilitating Small Diameter Piping Systems

The presentation will cover the current day application methods of the in-place restoration of small diameter piping systems ie: pipes having a diameter of 2” or less.

This method of corrosion control is focused on the preparation and the placement of an epoxy of similar type barrier coating to the interior of an existing piping system.

The presentation will address the history of this method of corrosion control, the present regulatory environment, how to assess if a project is a candidate, overview of the actual application process, performance of epoxy linings, examination of previous applications, who has chosen epoxy lining versus conventional repiping methods.

Pipe Restoration - DOD Projects

The presenter will describe Methods and Systems commercialized under US Patents #7160574 and #7517409, already utilized by the Army Corp of Engineers and other Department of Defence departments.

DOD related projects utilizing this method of corrosion control include applications at:

i) Fort Knox, KY for Administration and Readiness Buildings, ii) Buckley AFB, Co, Hanger 81 for corrosion protection to radiant heating systems, iii) USNS Dahl – MSC Watson Class Vehicle Cargo Ship, for restoration of system critical lines for vessel propulsion system, iv) Port Hueneme, CA - Naval Housing, restoration of hot and cold domestic water piping, v) Fort MacArthur, San Pedro, CA – Air Force Housing restoration of domestic water supply piping including in-situ slab leak repairs 

The general application of pipe restoration involves i) an evaluation of the piping system, ii) isolation of the system, iii) draining the water from the pipes and air drying the pipes, iv) cleaning and profiling the interior of the pipes, v) epoxy coating the pipes and finally vi) reassembly and testing the system.