LINE, SLIDE, CANAL, FLAP, SLUICE GATES ACCESSORIES
PF-25 Cast Iron Flap Valves
- For Pump Discharge
- Flange Style Available in 4"-24"
- Compression Style in 4"-14"
Waterman Model PF-25 flap valves are designed for use
on pump discharge lines and other pipe end closures to prevent entrance
of back water. These valves are furnished with a variety of frame styles
to fit most installation needs. A 7 1/2º inclined seating plane is
used to ensure that the valve will not "hang open" from slight
pipe sagging or off grade. A positive stop prevents over opening. The
flange model (PF-25f) may be furnished with either iron or bronze seat
faces. Bronze hinge pins are standard. Drilling is ANSI 125 lb. standard.
• Cast Iron Body • Flange or Compression Mounted
• Cast Iron Cover • Aluminum Cover Optional • Cast Iron,
Bronze or Resilient Seat Faces • Bronze Hinge Pins • 7 1/2º
Seating Plane
The popular compression Model PF-25W uses time proven
wedge type seals to install quickly and easily on plain end standard steel
pipe. A special gasket is furnished for use with O.D. sized steel pipe.
This model is standard with a cast iron frame with machined seat face
and a cast iron cover with a resilient neoprene rubber seat face. Follow
ring is cast iron with rubber wedge gasket and plated steel draw bolts.
Valves are available with aluminum covers and neoprene seat faces where
extra sensitivity is desired. Taper setting collars can be provided as
an aid for installation on concrete pipe.
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