Description

This Type check valves are engineered for  installation on pre-existing pipe lines such as manholes, outfalls, vaults,
where the outfall invert of the pipe is close to the floor of the manhole or outfall. When a new installation is being designed, this  products
can be engineered into the pipe layout with little concern for outfall clearance due to its "low slope" design.

In some applications, a Slip-on Duckbill Check Valve is not feasible because of an existing mating flange or wall thimble, or a flanged connection is preferred, or it is desired to mount the valve directly to a concrete wall. In these cases, this type  Duckbill Check Valve is the solution.

 The flange size drilling conforms to ANSI Class 125/150# and is also available with DIN drillings and other standard or customized drilling patterns.

All Check Valves are furnished complete with retaining rings for installation.

• Reliable backflow prevention
• Minimal bottom clearance required
• 100% elastomer construction eliminates maintenance
• Will not corrode, warp or freeze open or shut
• 1"-2" cracking pressure, low headloss
• Curved bill enhances sealing around debris
• Custom built for each application based on pressure and flow conditions
• Available in diameters from 4" (100mm) to 72" (1800mm)

Materials Of Construction:

• Drilling patterns:
  • ANSI Class 125/150#
  • DIN PN6, PN10, PN16
  • Custom
• Retaining rings:
  • Galvanized steel (standard)
  • 304 Stainless Steel
  • 316 Stainless Steel
  • Special alloys available