Flange mounted flap valve type PTK-F is recommended for use both below and above the waterline. The PTK-F flange mounted flap valve is hung at a 10 degree angle to ensure a water tight seal. The PTK-F flap valve is suitable for use with a water pressure of 5 MWC for 72 hours and 1 MWC for 50 years. The flap valve is HDPE with HDPE ribs and can be further reinforced where necessary with stainless steel.
10mm opening pressure when submerged
Lightweight, easy to install and handle
Easily adaptable to meet site specific pressure or installation demands