Electric metal seated butterfly valve introduction
Electric metal seated butterfly valve adopts triple eccentric structure, frictionless transmission between the sealing surface, with abrasion resistance, good mechanical performance, high temperature resistance, high pressure resistance and long service life.According to the connection mode,Electric metal seated butterfly valve can be divided into electric hard sealing flange butterfly valve and electric hard sealing sandwiched butterfly valve, Electric metal seated butterfly valve can be used for different industrial pipelines, as well as places with corrosive media.The electric sealind adopt metal hard seal butterfly valve or other hard material made and become, such as: carbon steel, stainless steel, stainless steel and hard alloy, etc, can be widely used in chemical industry, environmental protection treatment of 550 ° C or less, gas, oil, steam, water, and corrosive medium, etc to adjust flow or truncate the medium in the pipeline.
Electric metal seated butterfly valve working principle
The electric hard seal butterfly valve is composed of an electric actuator and a metal seal butterfly valve. The valve is opened or closed by the power drive of the electric actuator. The valve stem drives the disc to rotate back and forth within the range of 0-90 degrees.It can also be assembled according to the working conditions of intelli gent multi-rotary electric actuators or intelligent regulating actuators can realize unlimited automatic switch of butterfly valve butterfly plate and arbitrary adjustment of butterfly valve butterfly plate opening size, so as to control the temperature, flow, pressure, liquid level and other parameters * control.Under high pressure temperature and high pressure can maintain good operation, and more wear resistance, mechanical good, long service life, but the sealing performance is relatively poor compared to the soft seal butterfly valve.
Electric metal seated butterfly valve technical parameter
Nominal diameter: DN50~2000mm,
Nominal pressure: 1.0Mpa, 1.6Mpa, 2.5Mpa, 4.0Mpa, 6.4Mpa,
Connection: clamping connection, flange connection
Valve body form: straight cast butterfly valve
Spool type: butterfly plate type
Flow characteristics: approximate fast opening
Sealing structure: wafer butterfly valve, flange butterfly valve
Seal: Metal hard seal
Sealing ring: body carbon steel, stainless steel manufacturing from grinding
Valve plate quality: Carbon steel (WCB), stainless steel 304, stainless steel 316, etc
Body material: Carbon steel (WCB), stainless steel 304, stainless steel 316, etc
Scope of application: gas, water, steam, oil, corrosive medium, etc
Range of action: 0~90 degrees
Leakage quantity: according to GB/T4213-92, is KV worth 10-4
Applicable temperature: Carbon steel: -30°C~+425°C, stainless steel: -40°C~+450°C,
Actuator: Multi-turn electric mounting, fine small electric mounting, QT intelligent electric mounting (with explosion-proof type and handwheel device)
Power supply voltage: AC220V, AC380V, DC24V
Control form: switching type (two-position switching control), intelligent control type (4-20mA analog signal control)
Ambient temperature: -30°C~+70°C
Product features: wide range of application, can be used in high temperature and high pressure, no friction, corrosion resistance, long service life
Electric metal seated butterfly valve 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: AC220V380V110V24V、DC12V24V 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 |