RSK 355D – Non return valve Ø 355 mm with sealing rubber – RUCK

RSK 355D – Non return valve Ø 355 mm with sealing rubber – RUCK

Installing a check valve between spiral ducts prevents backflow of ventilation air. Additionally, air from outside will not be able to enter the duct either. The damper blades will open or close by means of the air pressure in the pipe. This non-return valve is fitted with rubber seal and is suitable for a tube with a diameter of 355 mm.

Material
The spiral check valve is manufactured to the highest standards. They are galvanised (Z275) according to the sendzimir process, making them durable in use and guaranteeing a long service life.

Air tightness class
The valve meets the strict requirements for airtightness class D (ATC 2), according to standard EN12237. This ensures excellent airtightness of the valve and results in low pressure loss.

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RSK D RUCK