China plug valve manufacturer,factory and supplier-Plug valves

Sleeved Plug Valve

China sleeved plug valve manufacturer, factory and supplier, mainly produce PTFE sleeve type plug valve, non lubricated sleeved plug valve, 2 way and 3 way sleeved plug valve, cast steel,stainless steel sleeved plug valve, and customized other sleeved plug valves.

A Sleeved plug valve is a type of plug valve that uses a sleeve between the body and the plug. The sleeve is used to enhance smooth rotation of the plug without causing wear. This valve is very durable relative to the lubricated one and it can last for years without being replaced. Sleeved plug valve manufacturers design this valve for use with a manual handwheel or by use of actuators. This valve operates by making a quarter turn of the handwheel. This forces the valve plug to rotate aligning its plug port collinear to the valve port. As such, the fluid finds the valve open and thus flows. To close the valve, the handwheel is again rotated in the opposite direction where it aligns the plug port normal to the fluid flow path. This blocks the fluid from flowing through the valve.

Sleeved plug valve manufacturers produce several types of valves such as flanged end sleeved plug valves, threaded end sleeved plug valves, welded end sleeved plug valves, and 2 way and 3 way sleeved plug valves among others. The industries where the sleeved plug valve can be used include chemical processing, pharmaceuticals, foods, and beverages, water supply, mining, oil and gas among others. Advantages of purchasing sleeved plug valves are versatile, fast operation, easy installation, easy repair and cleaning, durable, low cost, zero leakage, and low-pressure drop. 


What is a sleeved plug valve?

This is a non-lubricated type of plug valve that uses a sleeve component installed around the valve plug to maintain a continuous seal. The sleeve is used to provide the lubricity needed for the plug to rotate smoothly resulting in fast opening and closing of fluid flow. Sleeved plug valve manufacturers also use this sleeve to help reduce frequent maintenance needed in the lubricated type of valves as well as give the valve long service life. Sleeved plug valves are quarter valves. This is because they operate by turning the valve plug for a 90o degree angle to open or close. This type of sleeved plug valve operates manually or by use of actuators. Sleeved plug valves are designed such that the plug moves up slightly when opening fluid flow to ensure it leaves some clearance with the valve seat to avoid wear which can reduce service life of the plug. This type of plug valve has a tight shut-off and is used in various industrial applications such as waste water treatment, food processing, chemical processing, oil and gas among others.

Sleeved plug valve specification

Size Range : NPS ½ to NPS 24
Class Range : ANSI Class 150 – Class 600
Design Standard : ASME B16.34
End Connection : Flanged ASME B16.10
Valve Body Material : Carbon Steel / Stainless Steel
Temperature Range : -30°C to 260°C
Sleeve : PTFE / PPL or Others
Operation : Manual Lever / Pneumatic / Electrical


Sleeved plug valve construction

In a sleeve plug valve, each component has its specific purpose for creating this robust valve design. The main components of a sleeve plug valve are the body, sleeve, cover, top seal, and cover are considered as main valve components.

Body: The body of a sleeved plug valve is cast as a one-piece that provides high integrity. This casting has integral design features that are important for creating key benefits of the product being cavity-free and maintenance-free.

The body casting has 360-degree lips around the ports which keep the sleeve in place preventing sleeve rotation while the valve is being operated. The sleeve relief area present in the body allows the PTFE sleeve to expand and contract during the temperature changes, this relief area also assists in controlling the valve torque.The body of the sleeve plug valve also consists of horizontal and vertical ribs which enables strong sealing capabilities between the sleeve and the plug by creating compression that is needed to maintain the sleeve in its place along with 360-degree lips.


Sleeve: A fluorocarbon sleeve that keeps the tapered plug in place and maintains a continuous seal.  The sleeve provides the lubricity required to turn the valve, allowing it to open and close quickly, function without maintenance, be non-sticky, and last longer.

Top Seal: In sleeve plug valve design, the top seal ensures that fugitive emissions are kept to a minimum. It complies with or surpasses the most strict regulatory criteria currently in effect. The integrated, flexible graphite stem seal and the graphite cover seal ring ensure sealing where the stem and at the body/cover connects.

Cavity-free design: The cavity-free design is a significant feature of the product and is crucial in applications where solids are present in the media. The key valve components the body the sleeve and the plug are in close contact with each other creating the cavity-free design. This means that there are no spaces between the plug and the body that can trap media when the valve is being operated.

How does a sleeved plug valve work?

This sleeved plug valve operates by using a handwheel/hand lever or by use of an actuator. Whether the sleeved plug valve is manual or automatic, the working mechanism is the same. The plug valve starts when the handwheel/ actuator rotates forcing the stem as well as the plug valve plug to rotate. To open the valve, the handwheel/actuator rotates the plug valve stem for a quarter turn in the clockwise direction. The rotation of the stem in the clockwise direction forces the valve plug to rotate for a 90o degree where it aligns the plug port collinear to the valve port. This creates an unobstructed path for the fluid to flow through the sleeved plug valve. To close the fluid flow, the handwheel/actuator rotates in the counterclockwise direction for a quarter turn. This then forces the stem and thus the plug to make the same 90o degree turn which positions the plug port normal to the valve port. This ensures the valve plug is blocking the fluid flow and thus no fluid can flow through the sleeved plug valve. For throttling fluid flow, the handwheel is rotated for an angle of around 45o degrees to allow some space for the fluid to flow through the valve. Sleeved plug valve manufacturers recommend use of this valve in throttling fluid flow where pressure drop will not cause technical challenges since throttling causes pressure drop by a great margin. 
 

Types of sleeved plug valve

According to flow port:

2 Way sleeved plug valve 
This is a sleeved plug valve designed with two way valve ports. Sleeved plug valve manufacturers design this type of valve for use in medium-pressure applications. 2 Way sleeved plug valve is non-lubricated structure, soft seated for zero leakage. 

 
3 Way sleeved plug valve 
This is a sleeved plug valve designed with three valve ports. Sleeved plug valve manufacturers design this valve to help reduce the cost of buying three gate valves for the same task. With this type of valve, one can transport fluid in different lines as well as use the same valve to divert or mix the fluid. When used to mix fluid, the valve gets fluid from two pipes and mixes the two fluids to leave the valve as one fluid stream. For diversion of fluid, one fluid stream enters the valve and the valve port changes its direction of flow to an angle of 90o degrees. This type of 3 way sleeved plug valve makes the cost of the piping system cheaper relative to using several gate valves. 

According to connection:
Threaded end sleeved plug valve 
This is a sleeved plug valve that is connected to the pipe using threads. Sleeved plug valve manufacturers design this type of valve for use in medium-pressure applications. The valve ports are designed with threaded ends. The pipe end to be connected to the valve is also has threads machined on the end. The threads are male and female such that if the valve has female threads the pipe end should have male threads and vice versa. This type of valve is easy to assemble and small in size relative to the bolted type. 

Flanged end-sleeved plug valve 
This is a sleeved plug valve that is connected to the pipe using bolts and nuts. Sleeved plug valve manufacturers design this valve with flanged ends on the exit and outlet ports. These flanged ends also have holes drilled on them. The pipe to be connected to the sleeved plug valve also has flanged ends and holes drilled on it. The flanged ends on the valve and pipe are equal. This type of valve is suitable for use in high-pressure applications as it ensures no fluid leakage due to high torque strength enhanced by several bolts and nuts used. The problem associated with this type of plug valve is that it is usually heavy relative to the welded end and threaded end valve types due to the several bolts and nuts used to tighten it. Also, this sleeved plug valve is large relative to other valves and thus it occupies large area when installed.


Welded end sleeved plug valve 
This is a sleeved plug valve that is connected to the pipe by through welding method. This valve is very reliable as it ensures that no fluid can leak through the valve body-pipe connection due to loose bolts or screw threads. The valve port end and the pipe ends are welded together creating a solid connection free from any flaws that may lead to leakage. Such a sleeved plug valve is suitable for use in applications that involve very hazardous and corrosive media which, in case of any slight leakage may lead to damage to the environment or injury to the valve personnel. The weld has to be removed first before removing this sleeved plug valve from the piping system for repairs. 

Sleeved plug valve features

1. These sleeved plug valves have an economical and compact design, bi-directional in nature, actuation is very simple, lightweight, and the fluid handling system is flexible and compact.
2. The plug is entirely enveloped in an inert PTFE sleeve. From port to port, the sleeve offers a broad circumferential sealing surface. The sealing is guaranteed whether the valve is open, closed, or turning. This sealing capability cannot be matched by any ball or gate valve.
3. The sleeve is firmly inserted into the body of the valve. Sleeve confinement is ensured by high-pressure ribs, top and bottom retention, and 360° port lips present in this design.
4. The 360° port lips enable a self-cleaning action as the plug rotates, removing scaling and sticking material due to which there is no seizure and sticking of the plug.
5. The friction coefficient of the PTFE sleeve is very low. It has lubricating properties. Even if the valve is kept unoperated in any condition for long periods of time, ease of operation is ensured.
6. Standard pricing and a significantly prolonged service life ensure extremely lower long-term costs of ownership.
7. The stem sealing on the sleeve plug valve is made up of cup springs that guarantee consistent forces acting on the sealing element and the plug. This results in zero emissions and a longer life cycle.
8. There are no cavities in the body where flow material can collect and contaminate subsequent processing. This cavity-free construction also keeps things from sticking together.

 

Sleeved plug valve application

They are used in the oil and gas industry. 
1. A Sleeved plug valve is used in fluid mixing and diversion. 
2. They are used in the manufacturing of various types of chemicals due to high resistance to corrosion.
3. Sleeved plug valves are used in the manufacturing of fertilizers. 
4. They are used in municipal water supply and waste water treatment. 
5. These valves are used in food and beverage processing plants. 
6. This valve is used in the mining industry as it can control the flow of sludge and slurries. 

 

Advantages and disadvantage of sleeved plug valve

Advantages of sleeved plug valve 
· Sleeved plug valves are very durable relative to the lubricated valve types.
· These valves are not prone to frequent maintenance common in the lubricated valve types. 
· Sleeved plug valves are cheaper relative to other valves like gate valves. 
· These valves are free from fluid leakage. 
· Sleeved plug valves can be used in various applications as they are highly versatile. 
· These valves can withstand high fluid pressure. 
· Sleeved plug valves are easy to install, clean and repair. 
· The design of these valves is simple and compact.
· Sleeved plug valves need a quarter turn to either close or open which makes the operation very fast. 
· These valves have low-pressure drop which improve pumping efficiency. 

 
Disadvantages of sleeved plug valve 
· Sleeved plug valves are not suitable for throttling use where there is a high-pressure drop. 
· Large-sized sleeved plug valves are hard to operate manually. 
· Sleeved plug valves cannot be used in high-temperature applications because the sleeve would be damaged. 
 

  • China stainless steel plug valve

    ( China stainless steel plug valve factory )

    • Port size:DN15-DN600;1/2''-24''
    • Pressure: PN16 ~ 100,150LB ~ 600LB
    • Medium:Water,steam,oil,gas
    • Temperature:-20~180ºC,-46~450ºC
    • Body material:Carbon Steel, Stainless Steel
  • DIN standard sleeved plug valve

    ( China sleeved plug valve factory )

    • Port size:DN15-DN600;1/2''-24''
    • Pressure: PN10-PN40
    • Medium:Water,etc.
    • Temperature:-29~180ºC
    • Body material:Carbon Steel, Stainless Steel
  • Non-lubricated plug valve factory and supplier

    ( China Non-lubricated plug valve factory and supplier )

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure: PN10-PN64 CL150-CL600
    • Medium:Water,steam,oil,gas,etc.
    • Temperature:-29~180℃
    • Body material:WCB,CF8,CF8M,CF3,CF3M etc.
  • China Non lubricated plug valve manufacturer

    ( China Non lubricated plug valve manufacturer )

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure: PN10-PN64 CL150-CL600
    • Medium:Water,steam,oil,gas,etc.
    • Temperature:-29~180℃
    • Body material:WCB,CF8,CF8M,CF3,CF3M etc.
  • Wrench operated manual soft seal plug valve

    ( Manual,electric,pneumatic is optional )

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure: PN10-PN100 CL150-CL600
    • Medium:Water,steam,oil,gas,etc.
    • Temperature:-29~180℃
    • Body material:WCB,CF8,CF8M,CF3,CF3M etc.
  • Stainless steel Non lubricated plug valve

    ( Manual,electric,pneumatic is optional )

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure: PN10-PN100 CL150-CL900
    • Medium:Water,steam,oil,gas,etc.
    • Temperature:-29~180℃
    • Body material:CF8 CF8M CF3 CF3M or other stainless steel
  • China PTFE Sleeved plug valve manufacturer

    ( Non-lubricated PTFE sleeved plug valve )

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure: PN10-PN64 CL150-CL600
    • Medium:Water,steam,oil,gas,etc.
    • Temperature:-29~180℃
    • Body material:WCB,CF8,CF8M,CF3,CF3M etc.
  • Non-lubricated taper plug valve

    ( Non-lubricated plug valve PTFE sleeve )

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure: PN10-PN64 CL150-CL600
    • Medium:Water,steam,oil,gas,etc.
    • Temperature:-29~180℃
    • Body material:WCB,CF8,CF8M,CF3,CF3M etc.
  • ANSI 150 300 PTFE sleeve lined plug valve

    ( Manual,electric,pneumatic is optional )

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure: CL150-CL300
    • Medium:Water,steam,oil,gas,etc.
    • Temperature:-29~180℃
    • Body material:WCB,CF8,CF8M,CF3,CF3M etc.
  • 304 316 SS Plug valve with teflon sleeve

    ( PTFE sleeved plug valve )

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure: PN10-PN64 CL150-CL600
    • Medium:Water,steam,oil,gas,etc.
    • Temperature:-29~180℃
    • Body material:WCB,CF8,CF8M,CF3,CF3M etc.
  • Stainless steel sleeved type plug valve

    ( Soft seated and metal seated is optional )

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure: PN10-PN64 CL150-CL600
    • Medium:Water,steam,oil,gas,etc.
    • Temperature:-29~150℃,-40~450℃
    • Body material:WCB,CF8,CF8M,CF3,CF3M etc.
  • Soft seat sleeved plug valve

    ( PTFE sleeved plug valve )

    • Port size:1/2"~16" (DN15~DN400)
    • Pressure: PN10-PN64 CL150-CL600
    • Medium:Water,steam,oil,gas,etc.
    • Temperature:-29~150℃,-40~450℃
    • Body material:WCB,CF8,CF8M,CF3,CF3M etc.
  • Cast steel sleeved plug valve

    ( Soft seat sleeved type )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: 150LB ~ 600LB
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:WCB CF8 CF3 CF8M CF3M or others
  • Teflon sleeve type plug valve

    ( Different standard is optional )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: PN16 ~ 64,150LB ~ 600LB
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:WCB CF8 CF3 CF8M CF3M or others
  • Full bore sleeved plug valve

    ( Manual,Pneumatic or Electric operation is optional )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: PN16 ~ 64,150LB ~ 600LB
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:WCB CF8 CF3 CF8M CF3M or others
  • Non-lubricated sleeve plug valve

    ( Soft seat Teflon sleeved type )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: PN10 ~ 64,150LB ~ 600LB
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:WCB CF8 CF3 CF8M CF3M or others
  • Sleeve type stainless steel plug valve

    ( Different standard is optional )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: PN10 ~ 64,150LB ~ 600LB
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:CF8 CF3 CF8M CF3M or others
  • PTFE sleeve plug valve

    ( Customized plug valve according to client's need )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: PN10 ~ 64,150LB ~ 600LB
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:WCB CF8 CF3 CF8M CF3M or others
  • Two way PTFE sleeved plug valve

    ( Two way or three way is optional )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: PN10 ~ PN16、 CLASS 150LB
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:WCB CF8 CF3 CF8M CF3M or others
  • ANSI Sleeve Type PTFE Sealing Plug Valve

    ( PTFE seat can not bear high temperature )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: Class 150 ~ Class 600
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:WCB CF8 CF3 CF8M CF3M or others
  • WCB Body PTFE Lined Sleeve type plug valve

    ( Manual,Pneumatic or Electric operation is optional )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: Class 150 ~ Class 600
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:WCB,WCC,WC6,WC9,C5,CF8,CF8M,CF3,CF3M
  • PTFE Soft seat sleeve type plug valve

    ( PTFE Sleeve,soft seat )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: 150LB ~ 900LB
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:WCB CF8 CF3 CF8M CF3M or others
  • WCB WCC LCB LCC Carbon steel sleeved plug valve

    ( Different material is optional )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: Class 150 ~ Class 600
    • Medium:Water,oil,steam,gas
    • Temperature:-40~180℃
    • Body material:WCB WCC LCB LCC or others
  • Sleeved type soft seated plug valve

    ( Soft seat Teflon sleeved type )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: Class 150 ~ Class 600
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:WCB CF8 CF3 CF8M CF3M or others
  • Soft seat Teflon sleeved plug valve

    ( Soft seat Teflon sleeved type )

    • Port size:DN15~400, NPS 1/2〞~ 16〞
    • Pressure: PN16 ~ 100,150LB ~ 600LB
    • Medium:Water,oil,gas
    • Temperature:-29~180℃
    • Body material:WCB CF8 CF3 CF8M CF3M or others
  • CF8 CF8M CF3 CF3M Stainless steel sleeved plug valve

    ( Different stainless steel material is optional )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: Class 150 ~ Class 900
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:CF8 CF8M CF3 CF3M or other material
  • Non Lubricated PTFE Sleeved Plug valve

    ( PTFE Sleeve,soft seated )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: 150LB ~ 900LB
    • Medium:Water,oil,steam,gas
    • Temperature:-29~180℃
    • Body material:WCB CF8 CF3 CF8M CF3M or others
  • Flanged type PTFE Sleeved plug valve

    ( Non-lubricated,PTFE sealing )

    • Port size:1/2'' ~ 16''( 15mm ~ 400mm)
    • Pressure: 150LB ~ 900LB
    • Medium:Water,oil,gas
    • Temperature:-40~150℃
    • Body material:WCB CF8 CF3 CF8M CF3M or others
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