Pneumatic butterfly valve of central air conditioner
Damper spring pneumatic butterfly valve (also known as prestressed spring damper) has the double advantages of low frequency and large damping of steel spring damper, and eliminates the inherent resonance amplitude of steel spring. There are more than 30 specifications of this series of products, among which the natural frequency of various loads corresponding to a single load of 15kg-4800kg is 1.6Hz-4.9Hz, and the damping ratio is 0.065. This series of shock absorbers has a wide load range, which is convenient for users to choose, low natural frequency, good vibration isolation effect, compact structure, small overall dimensions, convenient replacement, reliable operation, long service life, and strong adaptability to the working environment. It has obvious effect on the isolation of active vibration isolation, passive vibration isolation, shock vibration and solid sound transmission. It is an ideal shock absorber to isolate vibration and reduce noise, manage vibration hazards and maintain the environment.
Damping spring shock absorber can be divided into three types according to different device modes:
1. There are anti-skid rubber pads on the upper and lower seats of the shock absorber. For power equipment with less interference, the ZT shock absorber can be placed directly under the base of the equipment, and the center of gravity can be adjusted arbitrarily without fixing.
2. Upper fixed type.
3. It can be fixed up and down to meet the needs of various devices.
Applicable equipment: water pump, fan, water chiller, floor fresh air fan, combined air conditioner, cabinet air conditioner, roof air conditioner, centrifugal fan.
Load range: 25-3400KG

1、 Valve selection steps:
1. The appropriate valve model can be selected according to the pressure, diameter and temperature of the medium.
2. The connection mode of the valve can be determined by knowing the connection mode of the pipeline and the diameter of the valve.
3. If the purpose of the valve and the conditions of the production process are known, then the driving device of the valve can be determined.
4. The general valve diameter is the diameter of the pipeline, but the actual valve diameter is also calculated according to the pipeline diameter.
5. To determine the sealing surface of the valve, it is necessary to know the medium, temperature and pressure value of the valve. The zui high service temperature of the valve body must be greater than the medium temperature.
6. The nominal pressure of the valve shall be determined according to the material of the valve body, the working pressure and temperature of the medium.
7. The model and sealing surface can be selected for the medium characteristics, working pressure and temperature of the valve.