Plasti-Fab FRP Flow Measurement Products

As a leader in the flume fabrication revolution that began over forty years ago, Plasti-Fab has thousands of flumes installed in corrosive environments around the world.

Trapzoidal flume intersecting a creek
Description

As a leader in corrosion resistant equipment for fluid measurement and flow, Plasti-Fab has thousands of Packaged Metering Manholes, Gauges, H Flumes, Palmer-Bowlus Flumes, Parshall Flumes, and Trapezoidal Flumes installed in corrosive environments around the world. Plasti-Fab products are fabricated from highly corrosion resistant composite fiberglass reinforced plastic (FRP) to combat corrosion. Plasti-Fab is recognized around the world as an experienced innovator providing composite solutions for municipal and industrial fluid measurement and management applications.

Resources
  • Fiber Glass Systems Specialized and Fiberglass Reinforced Plastics

Packaged Metering Manholes

Key Features

  • Composite FRP is extremely resistant to chemicals, saltwater, corrosive soils, ground water and electrolysis
  • Weighs only a fraction of concrete and steel structures
  • Strong – FRP is pound-for-pound much stronger than steel
  • Flumes with precise throat dimensions for accurate flow measurement
  • Premium grade Isophthalic white gel coat interior to resist bacteria and maximize illumination for safety, and gray exterior Minimum 1/2” wall thickness 48”, 60” and 72” diameter barrels standard – custom sizes available
  • Ladder, SS US brackets, and bubble tubes all designed/manufactured in house

Gauges

Key Features

  • Standard 1/4” thickness with custom thicknesses available
  • Premium grade isophthalic gel coat for long term corrosion resistance
  • “S” style stencil gauge with large block lettering for easy reading
  • “P” style gauge for smaller applications with various lettering styles available
  • Letter / numeral height and markings customized for each application
  • Impact resistant

H Flumes

Key Features

  • Precise throat dimensions for accurate flow measurement
  • Designed with a usable range of more than 100:1
  • Standard 1/4” wall thickness
  • Free standing with up to 30” of Water Depth
  • Premium Grade Isophthalic Gel Coat for long term corrosion resistance
  • Head Gauge for visual fluid level check
  • Reinforced with engineered box rib design for strength on larger sizes

Palmer-Bowlus Flumes

The Palmer-Bowlus flume is well know in the sanitary field, and has been used in the Los Angeles area for over 60 years. It's primary application is in pipelines, in round bottom channels or in manholes where it is often preferred because of cost and ease of installation that can minimize construction expense.

Parshall Flumes

Used in monitoring sewage, plant effluent, storm water and irrigation water the Parshall flume is still the best known and most widely used for permanent installations. It is available in throat sizes from 1 inch to 12 feet. Parshall flumes are available with numerous accessories and adaptations to match your flow and installation requirements. Made of fiberglass reinforced polyester (FRP) Plasti-Fab Parshall flumes offer optimum corrosion resistance and are the industry leader in measuring flow. For extremely severe industrial effluents they are also available in Vinyl Ester, stainless steel or other special materials as needed.

Trapezoidal Flumes

All Trapezoidal flumes exhibit similar flow characteristics, and have application advantages over other flumes and weirs.

  • The bottom is flat from entrance to exit for better head conservation.
  • Trapezoidal flumes do not require a free-fall discharge to operate correctly.
  • The staff gauge and instrument mounting brackets are located within the flume and are factory installed.
  • The natural shape of the flume mimics many earthen and concrete-lined ditches. Little or no transition is required in these situations.

Related Products

Plasti-Fab FRP Manholes

The Plasti-Fab Packaged Metering Manhole was an industry first and remains the most complete and easy-to-install flow measurement package on the market.

Learn more

Explore More

Underground installation of pipeline tanks, separated into 4 parts, with employees around and on the tanks

Fiber Glass Systems

With manufacturing facilities located around the world, we provide composite piping systems, fittings, and structures to the oil and gas, chemical, marine, offshore, fuel handling, and mining industries.


Learn more
Machinery picks up a line of composite pipe

Composite Solutions

Our composite solutions are designed to address weight- and corrosion-related challenges.
Learn more