Tidal flap valve type PTK-A is recommended for use below the waterline and in tidal applications. The PTK-A tidal flap valve is typically installed below the normal water level to prevent back flow up a pipe. The PTK-A tidal 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