Lyall Polyethylene Ball Valves


PE Ball Valves From the Best Team in the Business

For more than a decade, Lyall and Polytec Co., LTD have provided a high quality line of PE Ball Valves. Combining Lyall’s years of expertise in the gas piping and distribution industry with Polytec’s extensive knowledge in the development of polyethylene products, a full range of high quality, cost-effective residential and industrial PE Ball Valves, sized ½ CTS through 16 IPS are available.

In addition to standard offerings, Lyall can provide fusion service of longer “pup” lengths to meet customer specifications.


  • Natural Gas
  • Propane (LPG)
  • Wastewater
  • Irrigation

Validation Tests 

  • Shell Test
  • Seat Test
  • Pressure Boundary Verification
  • Closure Verification
  • Temperature Resistance
  • Operating Test
  • Flow Test
  • Sustained Pressure Verification
  • Impact Test
  • Tensile Test
  • Cycle Test
  • Blowdown Test

Key Features

  • Meets or Exceeds ASTM D2513, ASME B16.40, CFR 49, PART 192, and CSA B137.4
  • ISO 9001 Certified Manufacturing Facility
  • Serialized for Complete Material and Process Traceability
  • Unrestricted Flow and Maximum Capacity for Optimal Performance
  • Service Rated to Maximum Allowable Pressures
  • Operating Temperature Range of -20° F to 140° F
  • Precision Manufacturing Processes Ensure Lower Operating Torque
  • Bubble-tight Seal Throughout Entire Pressure and Temperature Range
  • Specially Compounded Nitrile Seals (HNBR) Exceed Industry Standards
  • Valve Body Design Provides Resistance to Mechanical and Thermal Loads, Making it the Strongest Part of a PE Piping System

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