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China Suppliers GGG40 Cast Iron Wafer Butterfly Valve with Gearbox - Factory Direct, DN40-DN600 Size Options
| Valve Type: | Wafer butterfly valve | Structure: | Concentric |
| Standard: | EN593 | Workmanship: | Investment casting |
| Sealing direction: | Bidirectional | Sealing grade: | Zero leakage |
| Temperature: | -20°C < T < 120°C | Operation: | Gear box |
Characteristics
This gear box operated butterfly valve employs a wafer connection method, being fastened between two pipeline flanges with double-headed bolts. Its structure is compact, with a small footprint and lightweight design. The worm gear transmission mechanism is mounted at the valve's top as standard to ensures reliable operation. Additionally, the valve is engineered with a concentric layout, where the valve stem, butterfly plate, and valve body share a common central axis.
Advantages
- 1 90° Opening & Closing: The butterfly plate only needs to rotate 90 degrees to change from fully open to fully closed, with fast and sensitive action.
- 2 Low Torque Operation: Due to its simple structure and low opening and closing resistance, the required operating torque is small. Even larger diameter valves can be equipped with manual, pneumatic, electric and other actuators to achieve easy and fast automation control.
- 3 Flow Regulation: By partially opening the butterfly plate, flow regulation can be easily performed, with good linear adjustment characteristics.
- 4 Bidirectional Sealing Design: The valve seat (sealing ring) is usually replaceable. When the sealing surface is worn or damaged, there is no need to remove the entire valve body from the pipeline — simply loosen the bolts and remove the valve core for maintenance or replacement, greatly reducing maintenance difficulty and downtime.
Packing
Standard export wooden case packaging
Application Scenarios
This valve finds broad application in general industries such as petroleum, gas, chemical, and water treatment, as well as in thermal power plant cooling water systems. Furthermore, it is applicable to pipeline systems in metallurgy, municipal engineering, and related sectors, serving to cut off or regulate the flow of media including air, water, steam, and oils.
Frequently Asked Questions
Q
What is the connection method of this wafer butterfly valve?
This wafer butterfly valve employs a wafer connection method, where it is fastened between two pipeline flanges using double-headed bolts. This design makes installation and removal straightforward without requiring welding or additional fittings.
Q
What temperature range is this butterfly valve suitable for?
This valve is designed to operate within a temperature range of -20°C to 120°C, making it suitable for a wide variety of industrial fluid control applications including chilled water, ambient temperature media, and moderately heated fluids.
Q
What industries and media is this valve applicable to?
This valve is widely used in petroleum, gas, chemical, water treatment, thermal power plant cooling water systems, metallurgy, and municipal engineering. It is suitable for controlling media such as air, water, steam, and oils.
Q
Can the sealing ring be replaced without removing the valve from the pipeline?
Yes. The bidirectional sealing design allows the valve seat (sealing ring) to be replaced without removing the entire valve body from the pipeline. Simply loosen the bolts and remove the valve core for maintenance or replacement, significantly reducing downtime and maintenance costs.
Q
What actuator options are available for this butterfly valve?
The valve is standard-equipped with a worm gear (gear box) transmission mechanism. It can also be paired with manual, pneumatic, or electric actuators, enabling flexible automation control across different operational requirements and pipeline sizes.
Q
Does this butterfly valve support flow regulation?
Yes. By partially opening the butterfly plate, flow regulation can be easily achieved. The valve offers good linear adjustment characteristics, making it suitable for both on/off control and throttling applications where precise flow management is needed.