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To celebrate Hobas Pipe’s continued expansion in 2024, Hobas Pipe is releasing a Look Back Series to review and re-publish case studies that cover our long history of exceptional service providing Pressure and Gravity to municipalities desiring sustainable water infrastructure. Whether Pressure or Gravity, Hobas is more ready than ever to continue providing the top product for piping needs.

Hobas Pipe FRPM pipes and joints have been used for potable water internationally since 1969. The pipe’s high strength, leak free couplings and hydraulic efficiency provide long maintenance-free life and decreased pumping cost. Inherent corrosion resistance eliminates the need for cathodic protection. The water pipes have the same proven construction as all Hobas pipe. 

 Tested and Approved

Hobas Pipe Systems are approved for potable water in many of the most highly populated countries on the globe. In the US, the potable water pipes and joint gaskets have been tested by the National Sanitation Foundation (NSF) to meet the NSF/ANSI Standard 61: Drinking Water System Components-Health Effects, the nationally recognized standard for drinking water. 

The water pipes also comply with AWWA C950, Fiberglass Pressure Pipe Standard. They can be installed by direct bury, slip lining, jacking or microtunneling, tunnel lining and aboveground. 

California Plant Piping

On a potable water job in California, Overaa Construction of Valley Home, Calif., used Hobas pipe and fittings in a direct bury installation for the South San Joaquin Water Treatment Plant Project 

The 20-foot joints were 60 inches in diameter, 50-psi pressure class and 46-psi stiffness class with push-together FRP couplings. They were direct buried on a six-inch stable bed gravel embedment with cover depths from 3.5 feet to about 15 feet. They are easy to bury because of their high stiffness and light weight. Hobas custom fabricated several special fittings for the plant. 

With the long successful history, FRPM pipes will continue providing performance benefits.

May 2006