Althon flange mounted flap valves type PTK-F are 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 flanged 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
The flange connection on our PTK-F valves can be specified to PN10 or PN16. Our flanged valves are manufactured in HDPE and can be further reinforced if required with stainless steel.
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