ZFA Valve's electric butterfly valves are divided into the following two categories: centerline butterfly valves and eccentric butterfly valves, among which centerline butterfly valves are further divided into wafer butterfly valves, lug butterfly valves and flange butterfly valves.
Electric butterfly valves are assembled from butterfly valves and electric devices. It is widely used in petroleum, chemical, electric power, metallurgy, food, pharmaceutical, textile, paper and other industries. The medium are usually natural gas, air, steam, water, seawater and oil. Motor operated butterfly valves are used to regulate the flow and cut off the medium on industrial pipelines.
Below are our electric butterfly types
Wafer Type Electric Actuated Butterfly Valve
Electric wafer type butterfly valve: ZHONGFA wafer type butterfly valve with electric actuator are available in cast iron, stainless steel and carbon steel with soft sealing. These kind of valves are widely used in water, steam and wastewater treatment.
| Wafer Type Electric Actuated Butterfly Valve | |
| Actuator Type | On/off Type, Modulating Type, Intellient Type |
| Torque Range | 50Nm to 4000Nm |
| Environment Temperature | -20℃ to 60℃ |
| Protection Class | IP67 Waterproof |
| Valve Materials | Ductile Iron, Carbon Steel, Stainless Steel |
| Size Range | 2" to 36" |
| Medium Temperature | -10℃ to 120℃ |
| Pressure | 10 bar, 16 bar |
Lug Type Electric Actuated Butterfly Valve
Electric lug type butterfly valve: Our motorized lug type butterfly valves are in different standard, such as ANSI, DIN, JIS, GB. The valves can be used in both High flow rates and low flow rates.
| Lug Type Electric Actuated Butterfly Valve | |
| Actuator Type | On/off Type, Modulating Type, Intellient Type |
| Torque Range | 50Nm to 4000Nm |
| Environment Temperature | -20℃ to 60℃ |
| Protection Class | IP67 Waterproof |
| Valve Materials | Ductile Iron, Carbon Steel, Stainless Steel |
| Size Range | 2" to 36" |
| Medium Temperature | -10℃ to 120℃ |
| Pressure | 10 bar, 16 bar |
Flange Type Electric Actuated Butterfly Valve
Electric centerline flanged butterfly valve: Motor operated flange butterfly valve can help our project automation much easier. It is good sealing performance and long service life.
| Flange Type Electric Actuated Butterfly Valve | |
| Actuator Type | On/off Type, Modulating Type, Intellient Type |
| Torque Range | 50Nm to 4000Nm |
| Environment Temperature | -20℃ to 60℃ |
| Protection Class | IP67 Waterproof |
| Valve Materials | Ductile Iron, Carbon Steel, Stainless Steel |
| Size Range | 2" to 120" |
| Medium Temperature | -10℃ to 120℃ |
| Pressure | 10 bar, 16 bar |
Eccentric Type Electric Actuated Butterfly Valve
Electric eccentric butterfly valve: For high-temperature or high-pressure, based on our 20 years of experience and expertise, we recommend eccentric butterfly valves.
| Eccentric Type Electric Actuated Butterfly Valve | |
| Model | Double Eccentric Butterfly Valve
Triple Eccentric Butterfly Valve |
| Size Range | 2" to 120" |
| Connection | Flange or Wafer |
| Connection Standard | ANSI, DIN, JIS, EN |
| Working Pressure | 25 bar, 40 bar, Class 150, Class 300 |
| Working Temperature | -40℃ to 450℃(40℉ to 842℉) |
| Medium Temperature | 4-20mA, 1-5VDC, 0-10VDC |
| Pressure | On/OFF Type, Modulating Type, Intelligent Type |
Electric actuators can be divided by control mode into:
1. Switching type electric actuator (ON-OFF model): The control signal can only be used to control a preset fixed position, either on or off.
2. Regulating electric actuators (Modular model): the control signal can be used to control at any position and the valve can be opened to any degree.
Electric actuators basic knowledge:
The electric actuator can also be operated with manual operation, which facilitates the switching control when the valve even under power failure; the electric actuator can be installed under any angle, without the limitation of time and space. The main voltage of our electric actuators is 220V and 380V. Electric actuator switching time: in general, is between 10-120S, depending on the motor power of the electric actuator. And Commonly used Ingress Protection are IP65, IP66, IP67 and IP68.
IP followed by two number, the first is a solid state level of protection ranging from 0-6, the lowest being no special protection against external people or objects, the highest being complete protection against foreign objects and dust; the second is a liquid state level of protection ranging from 0-8, the lowest 0 indicating no special protection against the effects of water or moisture, the highest 8 against the effects of continuous immersion in water at a depth of more than 1 meter. In both cases, the higher the number, the higher the level of protection.
Butterfly valve drives are divided into four types: manual, electric, pneumatic and hydraulic. Here we just describe the characteristics of the electric butterfly valve:
1. Easy and quick to open and close, saves effort, low fluid resistance, can be operated frequently.
2. Simple structure, small size, light weight, good strength, suitable for those gases and liquids with relatively clean medium.
3. The sealing ring can be placed in different positions for different medium, allowing the customer to choose according to the working conditions.
4. Good seal can be achieved at low pressure, using stainless steel and nitrile oil resistant rubber as auxiliary raw materials for the seal, with a longer service life.
5. Good regulation performance.