Introduction of electric (pneumatic) airtight control valve
- Dezhou Yatai Group Co., Ltd.
- product brand:yatai
- Numéro de stand：W3F47
- product specification:
- product category:Miscellaneous-Others-
- product introduction:Installed in the air pipes of air conditioning and ventilation system for regulating air volume of the branch pipes, or to control the mix of fresh air and return air. By the electric signal of opening or closing to electrically open or close the valve; the automatic control system regulates air volume automatically. The electric actuator has functions of long-distance electric control and on-site manual control, having manual/electric operation switch handle and having mechanical and electrical position limitation devices. Functions like electric on/off, manual/automatic switch, fault alarm, and on/off status feedback.
Working principle of electric airtight control valve
Main construction features
Its frame is made of riveted cold-rolled 2mm galvanized steel plate.
Its blades are made of cold rolled 1mm galvanized steel plate after two-layer riveting pressure, having good anti-corrosion effect; Oil-bearing sintered bronze bearing is installed between the blade shaft and the frame, small friction torque and no maintenance requirement; blades action style is opposite directions opening, stepless regulation, equal percentage flow character;
The place between blades and the ends all adopt high temperature resistant elastic rubber as sealing material; operation temperature: 280℃/90min driving mode: manual, electric and pneumatic types
2、Working temperature: -30~+70℃
Special temperature 250℃/60min
Relative humidity ≤98%
Noise requirement: ≤45dB(A)
3、Working environment:
Normal operation: It can operate continuously under the conditions of -30℃~45℃ and relative humidity 10%~98%.
Operation when accident happens: for example, the air valve used in the station tunnel ventilation system and the station ventilation and air conditioning smoke exhaust system can run continuously and effectively for 1 hour under the 250℃ high temperature smoke flow.
Storage condition: temperature -30℃~70℃, relative humidity 10%~98%
Sustained pressure: ≥1200Pa
Structure characteristics of the main components: the overall structure of the single air valve is mainly composed of the frame, blades, transmission mechanism and other components. If the control system fails, it can be adjusted manually through the manual attachment of the actuator.
