Pneumatic regulator is what are the advantages of the fire?

Fire protection valves are normally installed to adjust air duct on ventilation and air conditioning system, suitable for horizontal or vertical air duct. Smoke fire protection valves are normally installed in need to adjust the air volume or need electricity signal control valve closed duct on ventilation and air conditioning system. Suitable for horizontal or vertical air duct. Small fire protection valves are normally installed in the ventilation area is small, compact space ventilation duct air conditioning system, suitable for horizontal or vertical air duct advantages: 1, the leakage air volume is low, good airtight performance. 2, strong anticorrosion performance and long service life. 3, flexible actuator drive. Feedback, interlocking signal accurately.