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Water & Wastewater Solutions

AWWA compliant flanges for municipal and industrial water service.

Overview

Water and wastewater systems demand cost-effective, corrosion-resistant solutions with minimal maintenance. Flanges connect treatment equipment, pump discharge lines, storage tanks, and distribution piping. AWWA C207 compliance ensures compatibility with potable water applications and aggressive industrial wastewater.

Applications

Water treatment plant inlet/outlet

Pump discharge and suction flanges

Filter inlet and overflow connections

Storage tank nozzles

Clarifier underflow and overflow

Membrane system connections

Wastewater force main connections

Relevant Standards

  • AWWA C207 (water systems standard)
  • ASME B16.5 (general industrial backup)
  • ASME B16.1 (cast iron alternative)
  • NSF/ANSI 61 (drinking water contact)

Material Grades

ASTM A105

carbon steel with corrosion allowance

ASTM A694 F65

higher strength

ASTM A182 F304

stainless for aggressive water

Ductile iron

ASTM A395 for lighter duty

Common Pressure Classes

125

PSI

150

PSI

250

PSI

300

PSI

Typical Service Specifications

Water system flanges typically operate at 125-300 PSI with ambient to 212°F temperatures. AWWA C207 specifies minimum bolt circle diameter and thickness. Corrosion protection via epoxy coating or stainless material is standard. NSF certification required for potable water contact.

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