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Metering manholes stacked and secured on the platform of an 18-wheeler

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.

  • Description Description
  • Resources Resources
Description

Plasti-Fab offers Packaged Metering Manholes, Energy Absorbing Manholes and Diversion Manholes. 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
Angled view of a new metering manhole, on wooden stand

Packaged Metering Manhole

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
Overhead shot of an energy absorbing manhole

Energy Absorbing Manhole

Key Features

  • Reduces velocity in flow to increase accuracy of flow measurement.
  • Drop in place installation is fast and efficient.
  • Self Cleaning Design.
  • Integral Manhole and Energy baffle system.
  • Manhole barrel has white gel coated interior to maximize available light and sanitation.
  • Design Features and Accessories
  • Manholes available with:
  • Full Hinged Lid
  • H-20 Rated Cone Top
  • Aluminum Gas Tight Lid
  • Grated Top
  • Aluminum Hatch
  • Manholes pipe stubs built to match existing pipe ID and OD for easy installation
  • Reinforced Energy Baffle
  • Sidewalls custom built to efficiently funnel water back into pipe
  • Manhole bottom is sandwich construction to prevent oil-canning
Distant shot of a diversion manhole outdoors, being held upright, and two NOV employees nearby

Diversion Manholes

Key Features

  • Divert flow as needed to separate downstream locations
  • Drop in place installation is fast and efficient
  • Manual or remote gate operation
  • Complete packaged integral manhole and diversion gate system
  • Manhole barrel has white gel coated interior for luminesce and sanitation
  • Composite FRP is extremely resistant to chemicals, saltwater, corrosive soils, ground water and electrolysis
  • Strong – FRP is pound-for-pound much stronger than steel

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