Safety Set SM6

The Clorius Safety Set SM6 is developed for all Clorius valves up to 150mm but may be used for other valve brands of corresponding size and function. It is consequently well suited for the modernisation of existing systems. The Clorius Safety Set SM6 is used for heating, cooling, ventilation and industrial systems, no matter whether the medium is water, steam or oil.

Design

The Clorius Safety Set SM6 consists of a valve motor, a control box and a dual thermostat. A gear motor drives the valve motor. Stepping motor with SUT (Superior Universal Technology) electronic control unit and electronic load-dependant cut-off.

The valve motor is delivered for 24 V AC/DC. The build-in spring return ensures a closing time of max. 4 sec. By temperatures higher than 130ºC, a cooling unit (1-0152285) is to be mounted between valve and motor.

All gear wheels and bearings are lifetime lubricated. Maintenance-free gear unit made of sintered steel; gearbox base-plate made of steel. The spring return is released when the power disappears from the holding coil, closing the valve completely. A timer in the control box ensures that the motor is not turned on again before 10 sec. after a spring return release. This function protects against starting the motor before the spring return function has terminated.

The control box contains:

• 230/24 V AC transformer for the valve motor
• 10 sec. timer for the spring return
• Potential free alarm switch
• Terminal blocks for connections to the valve motor, the dual
• Thermostat, other safety equipment, an alarm, and power
• Build-in fuse protecting against overload and short-circuiting

The dual thermostat is set to the normal close-down temperature, e.g., 90ºC, where the valve is to be closed. It further includes an overheating thermostat for spring return emergency close-down at 105ºC. This ensures correct function, even if, e.g., the normal thermostat should fail. For additional safety, the overheating thermostat has to be reset manually after a break.