pfa lined electric butterfly valve

Body: Cast Iron, Ductile Iron, Aluminum Stainless Steel,CF8,CF8M,CF3M
Disc: Stainless Steel+PTFE, Stainless Steel+PFA, Stainless Steel+F4
Stem: Stainless Steel
Seats: PTFE
Size: 2″ – 24″ (50mm – 600mm)
Flange accommodation: EN 1092 PN 6/PN10/PN16
ASME Class 150
AS 4087 PN 10/ PN 16
JIS 5K/10K
Top flange:ISO5211







    Description

    pfa lined electric butterfly valve

    Our pfa lined electric butterfly valve is the perfect choice for highly corrosive and toxic media. This product features a body made from cast iron, ductile iron, aluminum stainless steel, CF8, CF8M or CF3M along with disc made out of stainless steel + PTFE, stainless steel + PFA or F4. Additionally it is equipped with a stem made of stainless steel and seats made out of PTFE and has sizes ranging from 2″ to 24″ (50mm to 600mm). It is also flange accommodated by EN 1092 PN 6/PN10/PN16 or ASME Class 150 and AS 4087 PN 10/ PN 16 as well as JIS 5K/10K. Furthermore this valve is fitted with an ISO5211 top flange and operates in temperatures from -40 °C to + 180 °C (depending on pressure, medium and material). It also has multiple body styles including wafer, LUG and Flange. Finally this product comes equipped with an electric actuator that has an output torque of 50Nm to 2000 Nm) , control signal of 4-20 mADC & 0-5 VDC & 0-10 VDC , power range of 12VDC , 24VAC , 24VDC , 220VAC & 120VAC & 380VAC 50/60 Hz ± 10% . Optional Explosion proof actuator Exd II CT5 as well as Water-proof actuator IP67 are also available upon request.

    Description
    Body: Cast Iron, Ductile Iron, Aluminum Stainless Steel,CF8,CF8M,CF3M
    Disc: Stainless Steel+PTFE, Stainless Steel+PFA, Stainless Steel+F4
    Stem: Stainless Steel
    Seats: PTFE
    Size: 2″ – 24″ (50mm – 600mm)
    Flange accommodation: EN 1092 PN 6/PN10/PN16
    ASME Class 150
    AS 4087 PN 10/ PN 16
    JIS 5K/10K
    Top flange:ISO5211
    Temperature range: -40 °C to + 180 °C (depending on pressure, medium and material)
    Body style: wafer,LUG,Flange
    Applications: Highly Corrosive, Toxic Media

    Electric Actuator
    Output Torque 50Nm to 2000 Nm)
    Control: ON-OFF type、Regulation type
    Control signal: 4-20 mADC、0-5 VDC、0-10 VDC
    Power: 12 VDC,24 VAC,24 VDC,220 VAC,120 VAC,380 VAC 50/60 Hz ±10%
    Water-proof actuator:IP67
    Option specification:
    Explosion-proof actuator: Exd II CT5
    Water-proof actuator:IP67

    ptfe lined pneumatic butterfly valve


    FAQs

    What is PTFE lined butterfly valve?

    PTFE lined butterfly valve is a type of valve specifically designed with pipe lines that require materials which are highly resistant to corrosion, abrasion, and extreme temperatures. The butterfly valve itself is shaped like a disk and is situated so the flow of the material passes through it. When the disk-like part of the valve turns, it creates an opening allowing for flow to occur. Inside this butterfly valve lies a liner made out of ultra-durable PTFE (polytetrafluoroethylene).

    What material is used for butterfly valve lined?

    Butterfly valves are used in a variety of industrial applications, from water and wastewater treatment plants to chemical plant processes. As such, the material used for butterfly valve lined is critical for its proper functioning.

    The most common material used for lining butterfly valves is EPDM rubber. It’s an incredibly durable synthetic rubber, which is perfect when you need to protect against aggressive chemicals or extreme temperatures (cold or hot). EPDM has excellent resistance to ozone and UV radiation making it ideal for outdoor environments. In addition, it has superb resistant to ketones, alcohols and many dilute organic acids.

    Other materials that may be suitable depending on the application include: PTFE (a type of plastic), Viton/Fluoroelastomers (chemically-resistant elastomeric sealing compounds), polyethylene, urethane and neoprene. Each has its own benefits in different applications – for example PTFE works well in extremely acidic environments; while Urethane offers superior mechanical strength along with high resistance to abrasion and compression set; and Neoprene provides good oil-, weathering- , flame-and ozone-resistance properties amongst other things.

    What is the difference between lined and unlined valves?

    The primary difference between lined and unlined valves lies in the construction materials used to build them. Unlined valves, also known as bare valve bodies, are made from hardened cast iron or steel. In contrast, lined valves utilize a special lining material applied to the inside of the body cavity and sealing surfaces of the valve. This is done primarily for corrosion resistance reasons or when an application requires additional protection against abrasive media such as slurries or other particulates that might damage traditional materials like steel or cast iron if exposed directly.

    Additionally, because a chemical-resistant inner liner separates the process fluid from metal parts of a line valve it is possible to isolate high corrosive processes by protecting any contact with metallic parts which would be otherwise vulnerable to corrosive attacks and therefore significantly reduce maintenance costs over time compared to an unprotected system. Additionally, because lining materials are often softer than typical metals used for very hard applications (e.g., abrasives) it may provide adequate wear protection without compromising flow capacity due to excessive narrowing at small pipe diameters usually encountered in these kind of applications (i.e., throttling). Commonly seen lining options include polytetrafluoroethylene (PTFE), rubber (natural/SBR, neoprene and Hypalon), fluorinated ethylene propylene copolymer (FEP), tetrafluoroethylene/perfluorovinylether copolymer (ECTFE) etc., depending on your specific application requirements regarding chemical compatibility temperature & pressure ratings etc..

    What media conditions are pfa ptfe lined butterfly valves used for?

    PFA (Perfluoropolymer) and PTFE (Polytetrafluoroethylene) lined butterfly valves are used for a variety of media conditions, specifically those that are corrosive or contain high levels of suspended solids. Additionally, these valves are suitable for the handling of highly abrasive substances such as slurries, liquids with high viscosity or temperature fluctuations.

    These types of butterfly valves offer excellent performance in applications where precise control is essential such as food processing plants where cross-contamination must be avoided due to stringent regulations; mining operations where slurry and other corrosive fluids need to be transported; pharmaceutical manufacturing plants dealing with powders or delicate chemicals; water works facilities controlling potable water supplies; paper mills handling pulp wastes; refineries using acids and/or solvents which require control measures for process optimization; desalination systems requiring precise flow control amongst others

    What are the control methods of ptfe pfa lined butterfly valve?

    PTFE (polytetrafluoroethylene) and PFA (perfluoroalkoxy alkane/homopolymer fluoroplastics) lined butterfly valves are widely used to control the flow of different substances in diverse industrial applications. There are several methods for controlling these valves, including handle, turbine, pneumatic actuator, electric actuator and hydraulic actuator.