Due to its durability and speed of operation the Flapstopper™ has now become the industries most popular pollution and firewater check valve. The range includes a number of in-line plastic valves from 100mm to 500mm diameter and a range of heavy duty fire resistant in-chamber / end steel flap valves from 100mm to over 1m in diameter.
The metal Flapstopper™ features a patented over toggle action that permits it to close off and remain closed even in the event of a catastrophic incident on the site which damages the control panel and removes power.
When de- activated the Flapstopper™ acts like a standard non-return flap valve, however in the event of a spill the Flapstopper™ can be activated to forcibly close against a flow from the normally permitted direction to effectively block the drain and hence to create a containment vessel.
Plastic Flapstopper™ are available in sizes up to 500mm diameter and metal Flapstopper™ are availble up to 1.5m custom versions available to special order the Flapstopper is also an practical alternative where rodents threaten the integrity of bladder based systems.
Available for Safe areas and for use in ATEX Zone 1 and Zone 2 locations the Flapstopper™ can also be fitted to the outlet of oil interceptors to shut them off in the event of the interceptor becoming full, similarly the Flapstopper™ can be used to shut off both the inlet and outlet of an oil interceptor in areas liable to flooding.
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