One, fire valve.
Use scale: The device is in the air duct of the ventilation and air conditioning system to prevent the fire from spreading along the air duct.
Features:
1.70 ℃ active closed, fan shutdown.
2. Manual closing, fan shutdown.
3. Output closed electrical signal.

Second, smoke fire damper.
Use scale: The device is installed on the smoke exhaust system pipeline with smoke exhaust and fire prevention requirements and on the pipeline at the suction inlet of the smoke exhaust fan.
Features:
1. The electrical signal DC24V is open, and the exhaust fan is started together.
2. The temperature fuse is fused at 280 ℃, so that the valve is closed and the exhaust fan is shut down together.
3. Open manually and start the exhaust fan together.
4. After the valve is opened, an open electrical signal is output.

Three, remote control smoke fire damper.
Use scale: The device is installed on the smoke exhaust system pipeline with smoke exhaust and fire prevention requirements and on the pipeline at the suction inlet of the smoke exhaust fan.
Features:
1. The electrical signal DC24V is open, and the exhaust fan is started together.
2. The temperature fuse is fused at 280 ℃, so that the valve is closed and the exhaust fan is shut down together.
3. Long-distance manual open, smoke exhaust fan together to start the fire damper.
4. After the valve is opened, an open electrical signal is output.

General fire damper:
The main features of general fire dampers are: fusible tube fusing action, signal return, manual action and manual reset. The air duct in the ventilation system passes through the fire compartment and through the machine room. When the temperature of the air flow exceeds 70 degrees in the pipeline, the meeting will be closed automatically.
Electric fire damper:.
The main features of electric fire damper are: fusing action of fusible pipe, signal return, manual action and manual reset. The local functions of smoke exhaust and ventilation are generally compared with those of general use. The effect of ventilation pipe is played under normal conditions. When a fire occurs, the fire alarm system is linked, and the fire damper makes the corresponding opening or closing. At this moment, the effect of smoke exhaust pipe is played.
Material: carbon steel, galvanized sheet.
It is installed on the air supply and return air pipes of ventilation and air dispatching systems. It is usually opened. When a fire occurs, it is closed when the flue gas temperature in the pipe reaches 70 degrees. It can satisfy the requirements of smoke leakage and fire resistance integrity within a certain period of time, and has the effect of smoke isolation and fire prevention.
(1) the valve fire valve is normally open, when the airflow temperature reaches 70 ℃, the temperature sensor action, the valve closed.
(2) The valve can be closed by DC24V power supply.
(3) manual closure or manual reset.
(4) The blade opening degree of manual control valve in the range of 0 ° ~ 90 ° (dispatching type).
(5) the output valve closed signal, can be interlocked with other fire prevention equipment.
Interests:.
1, low air leakage, good airtight function..
2, electric open current consumption is small..
3, strong anti-corrosion function, long service life.
4, the actuator drive active, response, interlock signal accurate.
The main function, characteristics.
1. Input DC24V electrical signal, electromagnet action, valve opening.
2. Manual closing, manual reset and open.
3, can output valve open and close signal and interlock control signal.
Electric fire valve actuator according to the input signal changes and drive the valve stem to do straight stroke movement, and then open, close the valve or the valve to adhere to any opening, according to the input signal type, can be divided into three types of operation.
1. Passive switch signal form of fire damper: If your input is a passive switch value, choose this form. Please note that it must be a passive signal, such as the passive dry contact of a relay. Operation method: The actuator moves in the direction of valve opening or valve closing according to the on or off of the switch signal. If the switch signal persists, the actuator will continue to move until it reaches the position of fully opening or closing the valve and automatically stops, no matter the actuator moves to any direction, the actuator will move in the opposite direction only if the condition of the switch signal is changed (from on to off or from off to on).
2. Current input form: if your input is DC4-20mA current, choose this form. Operation method: According to the size of the input current signal, the actuator can drive the valve stem to walk and stay in the arbitrary position of the full stroke, and then complete the arbitrary adjustment of the valve opening.
3. Voltage input form: If your input is DC0-10V V or 2-10V voltage, choose this form. Operation method: According to the size of the input voltage signal, the actuator can drive the valve stem to walk and stay in the arbitrary position of the full stroke, and then complete the arbitrary adjustment of the valve opening.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong Province, the hometown of glass fiber reinforced plastic in China. The company has three-level qualification for construction mechanical and electrical installation engineering, three-level qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, an axial fan invention patent, a fan utility model patent, EIA, three at the same time waiting for complete procedures