Water level limiter DN20 without latch

Water level limiter 933.2 is used to protect boilers in hot-water systems against overheating as a result of low-water conditions. It is mandatory for sealed heating systems with an output of 300 kW and above.

The switch unit can be rotated and replaced without draining the system. The switch unit can be tested without lowering the water level. The body is zinc-plated, and the switch housing is made of plastic. It is approved for use in sealed heating systems in accordance with DIN 4751 and VDE, with component testing.

Spare parts:
	Float assembly for water level limiter 933

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