Damper spring pneumatic butterfly valve - fan pneumatic butterfly valve - air conditioning unit pneumatic butterfly valve
Damping spring has the double advantages of low frequency and large damping of steel spring shock absorber, eliminating the inherent resonance amplitude of steel spring. Characteristics of damper spring pneumatic butterfly valve:
1. The data of shock absorber spring is 60Si2Mn spring steel wire, which is fatigue resistant, high strength, large bearing capacity, long service life, etc.
2. Wide load range, easy for users to choose, low natural frequency, good vibration isolation effect, compact structure, small overall dimensions, easy replacement of the device, and reliable use.
3. It has strong adaptability to the working environment and can work normally in the environment of - 40 ℃ - 110 ℃. The natural frequency within the normal working load range is 2HZ-5HZ, which has obvious effects on active vibration isolation, passive vibration isolation, shock vibration and solid sound transmission isolation. It is an ideal shock absorber to isolate vibration and reduce noise, manage vibration hazards and maintain the environment.
The damping spring pneumatic butterfly valve has three device modes. The upper and lower seats of the shock absorber are equipped with anti-skid rubber pads. For power equipment with less interference, the ZD shock absorber can be directly placed under the base of the equipment without fixing; ZD Ⅰ type is only equipped with bolts to fix the upper base with equipment; ZD Ⅱ upper and lower seats are respectively provided with bolt and foundation bolt holes, which can be fixed up and down. Users can stop selecting according to different needs and places.

The material structure of pneumatic butterfly valve and the problem of equipment maintenance in operation
The advanced testing equipment and instruments ensure the perfection and reliability of production and quality. Ensure 100% of the products pass the factory and 100% of the users are satisfied. They are recognized and welcomed by a wide range of users and have a large customer base.
Pneumatic butterfly valves have been developed throughout the country in recent years. Pneumatic butterfly valves are used in various industries, which are convenient hoses with strong performance. They can prevent earthquakes. The central device with interlaced interfaces greatly saves time.
The nominal pressure of pneumatic butterfly valve refers to the maximum working pressure that can be applied at room temperature, the working pressure of pneumatic butterfly valve at high temperature, and the nominal pressure of pneumatic butterfly valve shall not be lower than the design pressure. For pneumatic butterfly valves or bellows compensators with practical working pressure greater than 10MPA used in some storage tanks, please refer to other relevant specifications to stop selection.
The actual length of pneumatic butterfly valve may differ from the design length to some extent. Generally, it is not allowed to be shorter than the nominal size, but it is allowed to be longer than the nominal size. If the extra length is not more than 2% of the total length, it can be qualified.
Seamless steel pipe is commonly used for straight pipe of pneumatic butterfly valve: when the diameter is greater than 500mm, and the design pressure drops by 1 When the pressure is 6MPa, straight seam welded steel pipes can be selected. When the pneumatic butterfly valve or corrugated compensator works to the lower limit position, it means that its compensation can be used up. If it is necessary to replace the large compensation, the compensation can also be stopped by reducing the height of the connecting pipe mouth. Although all hoses or corrugated compensators have not yet worked to the lower limit position, they have been used for many years and must be replaced.