Electric Butterfly Valve

Body:ASTM A536 65-45-12, WCB, CF8M
Disc:ASTM A536 65-45-12 Nylon coated, CF8, CF8M
Seat:EPDM,NBR,FRM.PTFE
Stem:SS420,SS431
Body style:wafer
Nominal diameter:2″ – 80″ (DN50mm – DN2000mm)
Flange accommodation:DIN PN10 PN16,JIS 5K 10K,ANSI CLASSS 150LB
Electric actuator: ON-OFF type, adjustable type







    Description

    Electric Butterfly Valve

    Electric Butterfly Valve: Overview, Benefits, and Applications

    An electric actuated butterfly valve is a type of flow control device that is widely used in various industries for controlling and regulating the flow of fluids through pipelines. The actuated butterfly valve stands apart from manual valves and other industrial valves because of its unique design, efficient operation, and electric actuator.

    How Electric Butterfly Valves Work

    Motorized butterfly valve work by utilizing an electric actuator to open, close or modulate the position of a disc-shaped element within the valve. This disc, known as the butterfly, is positioned in the center of the pipe, and it rotates to either restrict or permit flow through the valve. The orientation of the butterfly can be adjusted precisely with the help of an electric actuator.

    Electric Actuator

    The electric actuator is the heart of the electric butterfly valve, responsible for driving the movement of the butterfly disc. It uses an electric motor to convert electrical energy into mechanical motion, which then rotates the valve stem, adjusting the position of the butterfly disc. When the actuator receives an input signal such as 4-20mA, 0-10V or 1-5V, it interprets this signal to determine the target position of the butterfly and adjusts the disc accordingly.

    Design and Components

    The main components of an electric butterfly valves include the body, disc, seat, stem, and electric actuator. The body of the valve is typically constructed from materials like ASTM A536 65-45-12, WCB, or CF8M, while the disc can be made from materials such as ASTM A536 65-45-12 with a Nylon coating, CF8, CF8M, 2507, or 1.4462. The seat can be comprised of EPDM, NBR, FRM, or PTFE and the valve stem is typically made from SS420 or SS431.

    The body style of the electric butterfly valve is generally wafer-type, which allows for easy installation and replacement. The top flange of the valve is designed according to ISO5211 standards, and it can accommodate various flange types such as EN 1092 PN 6/PN10/PN16, ASME Class 150, AS 4087 PN10/PN16, and JIS 5K/10K.

    Benefits and Limitations

    Benefits of Electric Butterfly Valves
    1. Precise control: The electric actuator allows for precise control of the valve’s operation, ensuring accurate regulation of fluid flow.
    2. Remote operation: Electric butterfly valves can be controlled remotely, reducing the need for manual intervention and increasing safety in hazardous environments.
    3. Energy-efficient: Electric actuators consume less energy than pneumatic or hydraulic actuators, making electric butterfly valves an energy-efficient option.
    4. Simple maintenance: Electric actuation components are compact, making maintenance and troubleshooting more straightforward.

    Technical parameters

    Body ASTM A536 65-45-12, WCB, CF8M
    Disc ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462
    Seat EPDM,NBR,FRM.PTFE
    Stem SS420,SS431
    Body style wafer
    Nominal diameter 2″ – 80″ (DN50mm – DN2000mm)
    Top flange ISO5211
    Operating pressure: 16bar for DN50-DN300, 10bar for DN350-DN2000
    Temperature range: -20 °C to + 140 °C (depending on pressure, medium and material)
    Flange accommodation EN 1092 PN 6/PN10/PN16
    ASME Class 150
    AS 4087 PN10/ PN16
    JIS 5K/10K
    Electric actuator

    On-off type: feedback signal: Passive contact signal/4-20mA/ resistance signals.
    Regulation type: Input signal 4-20mA/0-10V/1-5V;
    Feedback signal: 4-20mA/0-10V/1-5V
    Voltage: AC220V\380V\110V\24V、DC12V\24V etc;Special voltage can be customized.
    Explosion-proof class: Can be choose explosion-proof type EX d IIBT4

    Type Control type Function
    Electric actuator ON-OFF type Feedback: the active signal, passive contact signal, resistance, 4-20mA
    Regulation type Input and output signal: 4-20mA, 0-10v, 1-5v, switch, MODBUS, PROFIBUS field bus
    Filed operation The field, remote control switch regulation and MODBUS, PROFIBUS field bus

    Outline size drawing: 

    electric butterfly valve size

    DN A H H1 d D n-d L
    50 157 340 80 52.6 125 4-16 42
    65 157 354 89 64.4 145 4-16 45
    80 157 360 95 78.9 160 8-16 45
    100 208 410 114 104.1 180 8-16 52
    125 208 423 127 123.4 210 8-16 55
    150 208 435 139 155.9 240 8-20 55
    200 256 485 175 202.8 295 8-20/12-20 60
    250 256 518 203 250.8 350/355 12-20/12-24 66
    300 256 562 242 301.9 400/410 12-20/12-24 76
    350 280 622 267 334 460/470 16-20/16-24 76
    400 280 644 301 390 515/525 16-24/16-27 86
    450 280 686 381 441 565/585 20-24/20-27 105
    500 387 492 620/650 20-24/20-30 130
    600 457 593 725/770 20-27/20-33 151

    wire drawing

    Electric butterfly valve wire drawing
    Complete with POE sereis electric actuator

    Electric butterfly valve wire drawing


    On-off type with light indicator signal feedback

    On-off type with light indicator signal feedback
    On-off type with light indicator signal feedback

    On-off type with passive contact signal feedback
    On-off type with passive contact signal feedback

    On-off type with resistance potentiometer feedbace wiring diagram
    On-off type with resistance potentiometer feedbace wiring diagram

    AC380V three-phase power supply wiring diagram with passive signal feedback
    AC380V three-phase power supply wiring diagram with passive signal feedback

    DC24V DC12V direct on-off type wiring diagram
    DC24V DC12V direct on-off type wiring diagram

    Intelligent regulation type electric actuator wiring diagram AC220V AC380V DC24C the wire drawing are the same.
    Intelligent regulation type electric actuator wiring diagram
    AC220V AC380V DC24C the wire drawing are the same.