KW draught limiter with overpressure damper ZUK 130

Precision draught limiter with very high control accuracy of the negative pressure in chimneys.
With a retrofittable motor control the flap can also be used as a combined secondary air device. The control disc and the housing are made of stainless steel throughout, the setting weights are made of brass. The draught limiter has external, self‑cleaning bearings, a locking facility in the closed position and a stop damper for reliable, low‑noise operation.
In addition it has a fixed overpressure flap which minimises pressure surges in the flue gas system when the burner starts up. Installation can be carried out on the chimney using the KW pipe sleeve or on the flue gas pipe using the KW connection adapter.

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