Plasti-Fab FRP Flow Control Products: Flap Gates

Flexible neoprene flap gate is the answer for applications requiring corrosion resistant equipment suitable for sea water and most low pH water.

Description

Simple construction and light weight make installation and maintenance easy. The flap gate’s molded body of reinforced copolymer has a 125 lb. pattern flange and a molded neoprene flap which also acts as a hinge. The flexible flap with molded-in weight reduces the possibility of pounding which is often a problem on valves having metal to metal seats. Body flanges can be drilled to accept standard bolt sizes when connecting to pipe flanges or can be drilled for smaller bolts when they are to be fastened directly to wall surfaces. We have three different kinds of flap gates. Our Rigid Round Flap Gates run in sizes from 4″ to 96″, rectangular flap gates range from 12″ to 96″ and our flexible rectangular flap gates range from 36″ to 96″.

Key Features

  • Round & Rectangular Styles Available
  • Sizes Range from 4” to 96” 
  • Lightweight Design 
  • Molded Reinforced Copolymer Body (Stainless Steel Optional) 
  • 125 lb. Pattern Flange or Wall Mounting 
  • Neoprene Seals 
  • Domed Composite flap with neoprene seals for standard diameters 
  • Totally encapsulated steel reinforced composite flap for standard square and rectangular models 
  • Many specially engineered solutions available — consult representative or factory 
  • Dependable operation when it is needed 
  • Structural steel core engineered to surpass deflection criteria for seating/unseating head pressure on each application 
  • Engineered specifically to withstand chemical & environmental conditions for each application 
  • Comparable to aluminum flumes and stainless flumes. 
  • Lightweight flap requires minimal fluid pressure to operate 
  • Composite Flap Gates are engineered to operate with minimal head loss while withstanding significant seating head pressures.

Options

  • Flaps available in Square, Round or Rectangular Design 
  • Lightweight Flap requires minimal water pressure to operate 
  • Single or multiple flaps 
  • Flexible Neoprene Hinge or Stainless Steel Hinge 
  • Wall, Flange or Bell Mount 
  • Standard Drawings 4″- 18″ Circular Flexible Hinged Flap Gate

 

Heavy Duty Rectangular Flap Gates Features

  • Structural steel core engineered to surpass deflection criteria for seating/unseating head pressure on each application. 
  • Dependable operation when it is needed. 

Circular Flexible Hinged Flap Gate Features

  • Designed to withstand maximum head 
  • Internal steel encapsulated in vulcanized rubber 
  • Wall, Flange or Bell Mount 
  • 4″-18″ 

Circular FRP Dished Flap Gate Features

  • Engineered specifically to withstand chemical & environmental conditions for each application 
  • Stainless Steel Hinge 
  • 36″- Larger 

Related Products

Plasti-Fab FRP Flow Control Products: Standard Duty Gates

Plasti-Fab gates are custom made for all of your specific needs.

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