Year1
- 圆顶阀主要用途：
- 圆顶阀工作原理
- 气动圆顶阀安装：
- 气动圆顶阀图纸
The dome valve is a new type of quick closing valve. It adopts the most advanced air-sealing structure in the world. The valve core and inflatable sealing ring are used when the valve opens and closes. The non-contact sealing ring is made of specially formulated rubber and can be widely used for sealing powdery materials. It is a key component in pneumatic conveying systems and is widely used in electric power, metallurgy, chemical industry, food, pharmaceutical and other fields.
. The valve core has no contact with the sealing ring during operation, has low operating resistance and has a long service life
. The inflatable sealing ring is used for good sealing performance
. The pneumatic actuator uses a linear cylinder or a sector cylinder The fully enclosed drive has large output torque and reliable performance, which can meet the needs of working under harsh working conditions.
Pneumatic dome valve Pneumatic dome valve (structure diagram)
2. Main parameters of pneumatic dome valve
Model R-- R-- R-- R-- R-- R- - R--
Caliber ()
Working pressure&.
Working temperature& &
Control air source pressure.~.
Air consumption~/times
Cylinder output torque ~ ./r
Working medium powdery and granular materials
3. Working principle of pneumatic dome valve
. The dome valve core is a spherical dome valve that switches on and off During the process, a certain gap is maintained between the valve core and the rubber sealing ring so that the valve core and the rubber sealing ring can move in a non-contact manner. The purpose is to prevent friction between the valve core and the rubber sealing ring and reduce wear. The pneumatic actuator of the dome valve is a fully sealed linear or sector-shaped cylinder that directly drives the dome valve to rotate, effectively preventing dust from entering it and causing wear, leakage and other phenomena. When the dome valve is in the closed state, the rubber sealing ring is inflated and expands to press tightly against the spherical dome valve core, forming a very reliable sealing ring to prevent the flow of materials in the pipeline.
.The dome valve core adopts different surface materials and hardening treatment methods according to different use occasions. The smooth and hard surface of the valve core can ensure good and close contact with the rubber sealing ring to ensure reliable sealing. The rubber sealing ring is made of special rubber and has the characteristics of high temperature resistance, corrosion resistance, wear resistance, aging resistance and long service life. When the valve is opened, the material port is fully flowing without obstruction. The valve is suitable for gas, liquid, semi-liquid and solid powder substances.
4. Precautions for the use of pneumatic domes
The inflation pressure of the rubber sealing ring should be guaranteed to be at... and higher than the delivery pressure. The working pressure of the cylinder... Use clean, dry, oil-free compressed air.
5. Key points for installation and use of pneumatic dome valve
Before installation, you should read this manual carefully and check the valve model, diameter and technical parameters.
It is strictly forbidden to weld the flange after installing the valve to avoid damaging the valve sealing ring. The valve installation distance reserved for the pipeline should be appropriate and gaskets should be added on both sides of the flange.
The center of the two pipes and the diameter center of the valve should be kept coaxial. The flange surface should be flat and no large deflection of the flange surface should be allowed to ensure the clamping and normal operation of the valve. The bolts should be tightened evenly and symmetrically.
. The valve has been adjusted and dynamically tested before leaving the factory. The gas line connection is intact.
6. Pneumatic dome valve wearing parts
The main wearing parts are sealing rings and valve cores.
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