The Kerotest Polyball® line of polyethylene ball valves is designed to be the WATER industry standard for high performance polyethylene valving.

Utility users will enjoy the very best performance with highest flow capacity, maximum pressure
capability, compatible fusion materials and reliable, leak free operation in water and wastewater applications.

The Kerotest Polyball® Water Valve meets or exceeds all industry standards and delivers important features and benefits as well:

  • AWWA C901 & C906
  • IAMPO IGC 151-99
  • Manufactured in an ISO 9001:2015 guided facility
  • Made in the United States of America
  • Drop-tight shut-off
  • Maintenance-free, corrosion-free
  • Independent third party testing


The Polyball valve is manufactured in the United States in our state-of-the-art facility in Mansura, Louisiana. Custom, dedicated tooling and equipment have been developed for every valve size to achieve and maintain quality levels during production and minimize variation in all processes.

Each valve is manufactured in accordance with AWWA C901 & C906 and IAMPO IGC 151-99 HDPE Plastic Valves for Cold Water Distribution Systems Outside a Building standards. ASME B16.40 was also used for guidance. Certain additional tests were performed by Kerotest based on our years of experience with polyethylene valves and specific customer requirements. These various tests are summarized as follows (specific reports available upon request):

  • Shell Test
  • Seat Test
  • Pressure Boundary Verification
  • Closure Verification
  • Temperature Resistance
  • Operating Test
  • Flow Test
  • Impact Test
  • Tensile Test
  • Cycle Test
  • Blowdown Test
  • Overpressure Burst Test
  • Freeze Test
  • Cv Flow Capacity
  • Torque Summary

Learn more about the high quality, ready inventory, quick turnaround, and competitive prices that are built into all Kerotest valves and equipment.

Polyball® Water Overview