Standards by Component

Waterworks

Pipe, fittings, flanges, and valves for municipal and industrial water systems.

Primary Standards
AWWA C110AWWA C151AWWA C200AWWA C504AWWA C509

AWWA C110

AWWA

Ductile-Iron and Gray-Iron Fittings for Water

Ductile-iron and gray-iron fittings, 3 in. through 48 in., for use with ductile-iron pipe in water and wastewater systems.

WaterworksDI FittingWater ServiceFlanged/MJ

AWWA C151

AWWA

Ductile-Iron Pipe, Centrifugally Cast

Centrifugally cast ductile-iron pipe, 3 in. through 64 in., for potable water, raw water, wastewater, and reclaimed water systems.

WaterworksDuctile Iron PipeWaterPush-On/MJ

AWWA C200

AWWA

Steel Water Pipe, 6 in. and Larger

Fabricated (welded straight-seam or spiral-seam) and seamless steel water pipe, 6 in. and larger, for transmission and distribution of water and wastewater.

WaterworksSteel Water PipeWelded/SpiralLarge Diameter

AWWA C509

AWWA

Resilient-Seated Gate Valves for Water Supply Service

Iron-body resilient (rubber) seated gate valves for water supply service, with NRS or OS&Y stems, including tapping gate valves.

WaterworksResilient SeatGate ValveWater

AWWA C504

AWWA

Rubber-Seated Butterfly Valves

Rubber-seated butterfly valves, 3 in. through 72 in., for raw water, potable water, wastewater, and reclaimed water service.

WaterworksRubber SeatButterfly ValveWater

AWWA C111

AWWA

Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings

Requirements for rubber-gasket push-on and mechanical joints for ductile-iron pressure pipe and fittings.

WaterworksScope and applicabilityMaterials or componentsQuality and acceptance requirements

AWWA C153

AWWA

Ductile-Iron Compact Fittings

Dimensions, materials, coatings, and testing for compact ductile-iron fittings used in water service.

WaterworksScope and applicabilityMaterials or componentsQuality and acceptance requirements

AWWA C150

AWWA

Thickness Design of Ductile-Iron Pipe

Structural thickness-design procedures for ductile-iron pressure pipe.

WaterworksScope and applicabilityMaterials or componentsQuality and acceptance requirements
Disclaimer: Disclaimer: This page provides a simplified engineering reference only. It is not a replacement for the official standard. For design, inspection, procurement, and construction, always refer to the latest official standard and the applicable project specification.