PTFE lined butterfly valve
Product Detail:
What is PTFE lined butterfly valve ?
PTFE lined butterfly valve is a valve used for flow regulation in large pipe diameters in which the disc takes the form of disk. Operation is similar to that of a ball valve. A plate or disc is positioned in the center of the pipe. The disc has a rod passing through it that is connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.
PTFE lined butterfly valves suitable for corrosive and abrasive process media in liquid, powder, or gas state Shut-off, flow control and throttling.
PTFE lined butterfly valve Technical Specifications
Design and Manufacture standard:API609/EN593
Face to face:ISO5752/EN558-1 series 20
Flange end EN1092-2 PN10/PN16,ANSI 125/150
wafer/lug DN50-DN600(2"-24")
Body:Ductile iron/carbon steel/stainless steel
Disc:carbon steel lined PTFE/stainless steel polished
Seat:PTFE
Our advantages of PTFE lined butterfly valve
Compact construction results in low weight, less space in storage and installation.
Centric shaft position,100% bi-directional bubble tightness,which makes installation acceptable at any direction.
Full bore body gives low resistance to flow.
No cavities in the flow passage,which makes it easy to clean and disinfect for potable water system etc.
Rubber lined internally in the body makes fluid not to contact the body.
Pinless disc design is helpful to prevent the leakage point on the disc.
ISO 5211 top flange is convinient for easy automation and retrofitting of actuator.
Low operating torques results in easy operation and economical actuator selection.
PTFE lined bearings are disigned for anti-friction and wear,no lubrication is required.
Inserted lining to the body, liner easy to replace,no corrosion between body and lining, suitable for end of line use.
Type of Operation for PTFE lined butterfly valve
Handle lever for resilient butterfly valves DN40-DN200.
Manual gearbox operator for the full range butterfly valves.
Pneumatic actuator for full range of butterfly valves
Electric actuator for full range of butterfly valves
Free stem without actuator,customized for clients with your own actuators.
Main Material List:
|
Parts |
Materials |
|
Body |
Cast iron, ductile iron, carbon steel, stainless steel |
|
Disc |
Nickel ductile iron / Al bronze / Stainless steel |
|
Seat |
EPDM / NBR / VITON / PTFE |
|
Stem |
Stainless steel / Carbon steel |
|
Bushing |
PTFE |
|
“O” ring |
PTFE |
|
Pin |
Stainless steel |
|
Key |
Stainless steel |
Product Show:
What is the PTFE lined butterfly valve used for?
This kind of PTFE lined butterfly valve is widely utilized in
Chemical and petrochemical
Desulphurization and denitration,printing and dyeing waste water
Municipal sewage
Industrial
Dry powder production and transportation
Ultra high voltage transformer cooling oil pipeline delivery system
