The fire fighting signal butterfly valve is a center line wafer fire fighting specific signal butterfly valve, which can clearly and accurately display the valve opening and closing status, and can intuitively, clearly, and reliably reflect the working status in the fire protection system. Therefore, it is widely and widely used in fire protection systems. The electrical signal device design of this butterfly valve is connected to the top of the vortex stem and turbine drive device, and is directly connected to the valve stem for transmission. In the precision fully enclosed electromechanical device, there is a mechanical indicator for valve opening, imported electrical components, and rust proof components, and the output signal is stable and reliable for a long time. Nominal pressure 1.6MPa Applicable ambient temperature: 4 ¡æ -70 ¡æ Contact capacity 0.5A 125/250VAC
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