PTFE lined pneumatic butterfly valve
If you are in need of a reliable and high quality PTFE lined pneumatic butterfly valve, then look no further than this top product from. This valve features a body made from cast iron, ductile iron, aluminum stainless steel, CF8, CF8M, and CF3M for maximum strength and durability. The disc is constructed from stainless steel combined with PTFE, PFA or F4 while the stem is made using stainless steel. Furthermore, its seats are constructed with PTFE and it has a size range of 2″ – 24″ (50mm – 600mm), making it suitable for most applications. Additionally, it offers flange accommodation EN 1092 PN 6/PN10/PN16; ASME Class 150; AS 4087 PN 10/PN 16; JIS 5K/10K and ISO5211 top flange. It is also capable of operating in temperatures between -40 °C to + 180 °C (depending on pressure, medium and material). Its style is available in wafer, LUG or Flange type configurations. Ideal for highly corrosive or toxic media such as oil and gas applications, it includes a pneumatic actuator with an output torque range of 10 Nm to 8000 Nm as well as accessories like Solenoid valves, limit switch boxes, filters as well as E/P positioners and hand wheels. Don’t miss out on the chance to own one today!
Body: Cast Iron, Ductile Iron, Aluminum Stainless Steel,CF8,CF8M,CF3M
Disc: Stainless Steel+PTFE, Stainless Steel+PFA, Stainless Steel+F4
Stem: Stainless Steel
Size: 2″ – 24″ (50mm – 600mm)
Flange accommodation: EN 1092 PN 6/PN10/PN16
ASME Class 150
AS 4087 PN 10/ PN 16
Temperature range: -40 °C to + 180 °C (depending on pressure, medium and material)
Body style: wafer,LUG,Flange
Applications: Highly Corrosive, Toxic Media
Output Torque 10Nm to 8000 Nm
Control: Double acting,Single acting normally closed, acting,Single normally open
Pneumatic accessories: Solenoid valve, limit switch box , filter, E/P positioner, hand wheel
All double acting and spring return units are suitable for both on/off and throttling applications. Actuators which can be actuated with other media such as hydraulic oil or water are also available as an option.
1, Two independently adjustable travel stop screws and a cam on the outputshaft to permit precise bidirectional adjustment of movement in both the open and closed positions for quarter turn valves (+5° to -5° limit adjustment)
2, Integral porting
3, Standard units have anodized aluminum bodies with polyester coated end caps.
4, Special coatings and materials available for corrosive environments
5, NAMUR accessory compatible
What is PTFE lined butterfly valve?
PTFE lined butterfly valves are valves that feature a thin PTFE lining, which is polytetrafluoroethylene. This type of valve is used to control the flow of fluids like gases, liquids and slurry within pipes. Its sleek butterfly-shaped disk creates a smooth and reliable seal when shut off while its full-bodied construction allow for excellent pressure bearing capacity when open.
Other advantages include ease of operation and minimal maintenance. It can be adjusted easily by torquing or even turning a handwheel, providing simple on/off control in manual applications.
The PTFE lining provides superior thermal stability as well as high resistance to corrosion from most chemicals such as acids, bases and hydrocarbons.
What material is used for butterfly valve liners?
The material used for butterfly valve liners depends on the application they are intended for, and can range from rubber to metal.
Rubber is typically used as a liner material in general purpose butterfly valves. This includes elastomers like nitrile butadiene rubber (NBR), ethylene propylene diene monomer (EPDM), and ptfe pfa, among others. These materials offer good chemical resistance
What is the difference between lined and unlined valves?
When it comes to understanding the differences between lined and unlined valves, it’s important to first understand what a valve is. A valve is a mechanical device that controls the flow of fluid in a system or pipeline. It can be used to start, stop, or divert the flow of either gaseous or liquid materials.
With that understanding established, let’s look at what differentiates lined and unlined valves. Lined valves are those which have been coated on their inner surfaces with special protective layers like polymers such as Teflon (PTFE), PFA, FEP etc., In addition these linings provide excellent wear & abrasion resistance for extended lifetime in operation even under difficult conditions ranging from high temperature/pressure corrosives & abrasive media applications such as slurries etc . Unlined valves on the other hand do not have this type of protective coating inside them; however they can still offer protection from corrosion when combined with alloys like stainless steel and nickel-plated brass construction.
What media conditions are pfa ptfe lined butterfly valves used for?
PFA/PTFE-lined butterfly valves are most commonly used in applications that call for handling highly corrosive and high temperature media. These materials are engineered to resist not only aggressive chemicals, but also extreme temperatures ranging from -20°F up to 500°F. The valves themselves feature a full-bodied valve body construction with a corrosion resistant epoxy coating for enhanced strength.
These valves are ideal for use in processing plants, oil and gas industries, chemical industries, power plants, water treatment plants or any other process industry handling of toxic and hazardous fluids like acids and alkalies as well as solvents with high thermal stability characteristics. They’re even suitable for low oxygen slurries since the lining can maintain a seal even when dealing with large pressure drops such as vacuum service or severe shock conditions.
What are the control methods of ptfe pfa lined butterfly valve?
PTFE/PFA lined butterfly valves are used for the transfer of a wide range of fluids and gases, including hazardous chemicals, acids, and petrochemicals. The most common type of control method is an automated valve that can be operated manually or by remote control. This type of valve can be actuated via electric actuator, air-actuation (pneumatic cylinder), or mechanically-operated handle.