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X43F46 FEP Lined Plug Valve


  • Port size:1/2"~24" (DN15~DN600)
  • Pressure:PN10-PN16 CL150
  • Medium:Corrosive medium
  • Temperature :-29~180℃
  • Body material:WCB,CF8,CF8M,CF3,CF3M +FEP PFA PTFE Lined
  • Description:FEP Lined Plug Valve Manufacturer, factory and supplier.
FEP Lined Plug Valve Manufacturer, factory and supplier. X43F46 FEP lined plug valve is the plug valve that have the internal part covered with PEP material. Due to the use of this FEP material the valve becomes very resistant to corrosion as well as being able to withstand high pressure and high temperature. This type of valve is in the category of quarter-turn valves. This is because FEP lined plug valve manufacturers design the valve such that it only needs a quarter turn of the handle to open or close the fluid flow. This valve is operated using a handle or by use of actuators such as hydraulic, pneumatic, and electric actuators. FEP lined plug valve manufacturers design this valve for on and off applications as well as throttling fluid flow. However, for throttling, this valve results in a lot of pressure drop and thus it should only be used if the piping system has very low-pressure drop. 

The areas of applications of X43F46 FEP lined plug valve include pharmaceuticals, foods and beverages, chemical processing, sewage treatment, water supply, and petrochemicals among others. The advantages of using this valve are resistance to corrosion, fast operation, low initial cost, low-pressure drop, low maintenance, easy installation, cleaning and repair, and zero leakage. 

X43F46 FEP lined plug valve manufacturer produces this plug valve to operate using a handwheel/hand lever or by using actuators. X43F46 FEP lined plug valve is in the class of quarter turn valves. This means that the valve needs a quarter turn of the handle or actuator and then it will either start or stop depending on the direction of rotation. This characteristic makes this plug valve very fast and simple to operate. X43F46 PEP lined plug valve can be used in various applications such as foods, oil and gas, water supply, and chemical processing among others. 

X43F46 FEP Lined plug valve specification:
Size Range : DN15 to DN300, NPS 1/2 to NPS 12
Class Range : PN10 PN16,150LB
Design Standard : API6D / API599 or Others
Face To Face Standard: ASME B16.10 or Others
Flange End Standard:ASME B 16.5 or Others
Body Material: WCB, ASTM A395 , CF8 ,CF8M
Lining Material: PTFE , PFA , PO ,FEP
End Connection : Double Flanged RF
Operation  : Lever / Handwheel / Pneumatic / Electrical
Temperature Range : -40°C to +180°C
Pressure Testing : API 598 / API 6D / EN 12266-1/ISO 5208

X43F46 FEP lined plug valve component:


The handle in a X43F46 FEP lined plug valve is the part where one applies torque to open or close fluid flow. The handle is used in manually operated valves. For an automatic valve, an actuator is used. The actuator is tasked with providing the torque that the valve needs to open or close the fluid flow. 


This is the component that transmits the torque applied on the handle by the operator to the plug. X43F46 FEP lined plug valve manufacturer design the stem with threads that help the stem to rotate.


The plug is the component that helps to open or close the fluid flow. It gets the power to operate from the valve stem. It is connected to the stem through its top end. The plug has a port or more than one port which when aligned with the valve ports allows fluid to flow through the valve. 

Valve body 

The valve body is used to house internal parts of the X43F46 FEP lined plug valve such as the plug and seat. This component is usually made of very strong metallic materials such as carbon steel and stainless steel among others. This ensures the valve body remains very strong against high pressure as well as impact damage. The valve body also contains the inlet and exit ports of the valve that are connected to the pipeline. 

Body cover 

The body cover is placed on top of the valve body and as the name suggests, it helps to cover the body’s top part to prevent any fluid leakage. It is through the body cover that the valve can be opened for inspection and cleaning while it is still connected to the pipe. The body cover and valve body are made of the same metallic material. 


These components are used to prevent fluid leakage between the body cover and the valve body as well as between the pipe and the valve body connection. Bolts and nuts as well as screw threads are used to tighten the connection where the gasket is mounted. 

PTFE Lined Plug Valve component

How does a X43F46 FEP lined plug valve work?

A FEP lined plug valve operates by rotating the valve plug for only a quarter turn. For the plug to make the quarter turn rotation, torque has to be applied on the handwheel or from the actuator. To start the valve, the handwheel is rotated for 90o degrees in the clockwise direction. This rotation from the handwheel is transmitted through the valve stem to the valve plug. This forces the plug to rotate for 90o degrees forcing its port to align straight to the valve port. As such, fluid starts flowing through the valve. To stop the valve, the handle is rotated in the counterclockwise direction for another quarter turn. This rotary motion is again transmitted to the valve plug via the stem. Due to this rotation, the plug rotates for 90o degrees becoming perpendicular to the valve port. This ensures the fluid is blocked and thus the valve is stopped. 

FEP lined plug valve manufacturer designs this valve so that by rotating the plug slightly by around 45o degrees, throttling flow can be achieved.

Applications of FEP lined plug valve

1. FEP lined plug valve is used in chemical processing plants. 
2. They are used in the manufacturing of fertilizers. 
3. FEP lined plug valves is used in food and beverage processing plants. 
4. They are used in water supply and waste water treatment. 
5. They are used in pharmaceutical manufacturing plants. 
6.FEP lined plug valve is used in fluid diversion and mixing. 
7. They are used in petrochemical industries.