Water Bar

The Water Transmission Group (WTG) of Ameron International Corporation, of a wholly owned subsidiary of National Oilwell Varco (NOV) is a leader in pipe technology and a principal supplier of highly-engineered concrete and steel pipe systems in the United States, Canada, Mexico, and Central and South America.

Designed to satisfy the needs and performance requirements of each project, WTG’s concrete and steel pipe products provide long-term water and wastewater conveyance solutions.

CCP

Featured Product

Bar-Wrapped Concrete Cylinder Pipe (CCP)

  • Manufacturing Standard: AWWA C303
  • Design Method: AWWA Manual M9
  • Diameter Range: 18" through 72"
  • Pressure Range: Up to 400 PSI

Water Transmission Offerings

Welded Steel Pipe

Welded Steel Pipe (WSP)

  • Manufacturing Standard: AWWA C200
  • Design Method: AWWA Manual M11
  • Diameter Range: 18” through 156”
  • Cylinder Thickness: Up to 1.25”
Reinforced Concrete Pipe (RCP)

Reinforced Concrete Pipe (RCP)

  • Manufacturing Standard: ASTM C76 or C361, AWWA C300 or C302
  • Design Method: ACPA Concrete Pipe Design Manual or AWWA Manual M9
  • Diameter Range: 42” through 156”
  • Pressure Range: Up to 300 PSI
Prestressed Concrete Cylinder Pipe (PCCP)

Prestressed Concrete Cylinder Pipe (PCCP)

Embedded Cylinder Type

  • Manufacturing Standard: AWWA C301
  • Design Method: AWWA Standard C304 & AWWA Manual M9
  • Diameter Range: 48” through 156”
  • Pressure Range: Up to 700 PSI
PressureCast Steel Pipe

PressureCast Steel Pipe (PCSP)

  • Manufacturing Standard: AWWA C200
  • Design Method: AWWA Manual M11
  • Diameter Range: 36” through 156”
  • Pressure Range: Up to 250 PSI
Tunnel Lining

Trenchless Technologies

  • Manufacturing Standard: AWWA C200, C300, C301, C302, or ASTM C76 or C36
  • Design Method: AWWA Manual M9, M11, or ACPA Concrete Pipe Design Manual
  • Diameter Range: 18” through 156”
Pipe Pilings

Steel Pipe Pilings


  • Manufacturing Standard: ASTM A252
  • Diameter Range: 18” through 156”
  • Cylinder Thickness: up to 3"