Non return valves
We recommend to equip your vacuum truck with a non-return valve. A non-return valve, also known as a check valve, is a mechanical device that allows fluid (liquid or gas) to flow in only one direction, effectively preventing backflow toward the opposite direction.
Non-return valves maintain vacuum in the main tank when the pump is stopped. Securing that the generated vacuum remains.
Non return valve
DN50
This valve is installed on trucks with an internal pipe system of DN50. Commonly used for 2″ vacuum trucks.
Non return valve
DN80
This valve is installed on trucks with an internal pipe system of DN80. Commonly used for 3″ vacuum trucks.
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