Product Features
Efficient circulation design: The streamlined structure design of the butterfly valve plate and the valve body greatly reduces the gas flow resistance, and the exhaust volume per unit time is increased by 30% compared with traditional valves, which quickly solves the problem of pipeline gas blockage.
Double sealing guarantee: The high temperature and wear-resistant rubber or polytetrafluoroethylene sealing materials are used, combined with precision machined valve seats, to achieve two-way sealing, and the gas leakage rate is less than 0.1%, ensuring the airtightness of the system.
Multi-mode drive: It supports multiple drive modes such as electric, pneumatic, hydraulic and manual. It can be connected to the automatic control system for remote control, and can also be manually adjusted in emergency situations such as power failure, with strong applicability.
Long life and corrosion resistance: The valve body is made of high-strength corrosion-resistant materials such as stainless steel, ductile iron or engineering plastics, and with the surface anti-corrosion treatment process, it can still operate stably for more than 8 years in acid and alkali environments and humid working conditions.
work principle of electrical butterfly
Pneumatic drive
When the pipeline gas pressure exceeds the threshold, the butterfly plate is pushed to overcome the spring resistance and rotate to open the exhaust. After the pressure drops, the spring resets to prevent backflow.
Electric adjustment
Receive 4-20mA or 0-10V electrical signals, the motor drives the valve stem through the gear set, and accurately controls the butterfly plate opening to adjust the exhaust volume.
Float control
Built-in float, the float presses against the valve plate to close when the liquid is full; gas accumulation causes the liquid level to drop, the float sinks, and the valve plate opens to exhaust by gravity or spring.
Pneumatic execution
Connect to compressed air, the cylinder piston moves linearly, and the butterfly plate is driven to rotate through the connecting rod mechanism to achieve rapid opening and closing or proportional adjustment
FAQ
1. What media are suitable for butterfly exhaust valves?
Mainly suitable for gaseous media such as air and water vapor, and can also be used for gas-liquid mixed working conditions containing a small amount of liquid, but not suitable for high-viscosity fluids or media containing a large amount of particulate impurities to avoid clogging or wear of the valve seat.
2. Are there any requirements for the installation direction of the valve?
Usually it is required to be installed vertically with the valve stem facing up to ensure the normal operation of the float or gravity-driven components; when installed horizontally, a special structural model must be selected, and the installation specifications in the manual must be confirmed to avoid affecting the exhaust effect.
3. What is the protection level of the electric exhaust valve?
The protection level of the standard electric butterfly exhaust valve is IP65, which is dustproof and splashproof; if used outdoors or in a humid environment, it is recommended to select products with a protection level of IP67 and above to prevent electrical components from being damaged by moisture.
4. How to adjust the opening pressure of the exhaust valve?
Some models are equipped with an adjustable spring device, and the opening pressure is set by adjusting the spring preload; electric or pneumatic types can set the pressure threshold through the control system to achieve intelligent automatic control.
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