Signal gate valves are often used in automatic sprinkler fire fighting pipeline system to monitor water supply pipeline, which can indicate the valve opening remotely. Lift-rod gate valve and accessibility indicator gate valve are also often used in fire fighting system. If the installation position of gate valve is higher than the ground, it is generally used to indicate the opening of valve. If the installation position is lower, accessibility indicator gate valve is needed.
Fretting start working parameters
Technical characteristic parameters
Rated voltage 24V, DC/AC can be
Large operating voltage 220V
Rated current 5A
Contact resistance <1m
Insulation Resistance (> 5m_) (DC500V)
Working environment temperature - 10 - 85 C (but not ice)
The working environment humidity is below 85% RH.