Warminster’s FRP Parshall flumes provide precise, long-term flow measurement for water and wastewater treatment systems.
Molded from corrosion-resistant fiberglass-reinforced plastic (FRP), these flumes offer excellent dimensional stability and low maintenance—making them an ideal choice for new construction and plant rehabilitation projects.
Parshall flumes are widely used in:


Each FRP Parshall flume is manufactured as a single molded piece for maximum accuracy and ease of installation. Benefits include:
Warminster fabricates Parshall flumes in all standard throat widths. Custom dimensions are also available for unique applications or to match existing infrastructure.
Options include:


Our flumes are manufactured using corrosion-resistant fiberglass laminates with internal reinforcement for rigidity. Key features include:

Warminster’s Parshall flumes are manufactured using materials that meet ANSI/AWWA F101 standards for FRP construction. When required, we can also supply components that support:
These compliance options ensure compatibility with federally funded treatment plant projects.
FRP Parshall flumes provide dependable flow measurement with minimal maintenance needs. Their corrosion resistance, hydraulic accuracy, and long service life make them an excellent replacement for metal or concrete structures in demanding environments.