More than 20 years of OEM and ODM service experience.

China Factory PTFE lined butterfly valve with electric actuator

Short Description:

NORTECH is one of the leading PTFE lined Butterfly Valve factory in China with electric actuator.  

PTFE lined butterfly valve is characterized by fast opening and closing, simple structure and low cost.

Resilient seated butterfly valves,wafer type,lined with PTFE.

Wafer type between flanges of various standard

Compact design and simple structure

Easy maintanance with replaceable parts

NPS 1.5”-24”  Mounted between flanges ANSI B16.1,ASME B16.5

Diameter 40mm – 600 mm between flanges EN1092 PN10,PN16,PN25

Design standard: API 609, BS EN 593, MSS SP-67.

Face-to-Face dimension: API 609, ISO 5752, BS EN 558, BS 5155, MS SP-67.

Lever / worm gearbox operator / electric operator / pneumatic operator

Working Pressure: PN10/16/25,Class125/150

PTFE lined butterfly valve is widly used in water, food, chemical industry, petroleum and other industries.

Product Detail

Product Tags

What is PTFE lined butterfly valve?

PTFE lined butterfly valve,is also referred to as “concentric”,"rubber lined" and “rubber seated” butterfly valve,has a rubber (or resilient) seat between the external diameter of the disc and the internal wall of the valve.

The movement of the disc will determine the position of the butterfly valve.The resilient seated butterfly valve wafer type can work as isolating valve if the disc rotates a full 90-degree turn, the valve is completely opened or closed.

Butterfly valve is also used as flow regulalting valve,if the disc does not rotate to a full quarter-turn, it means the valve is partially open,we can regulate the flow of fluids by various openning angle.

PTFE lined butterfly valve,the most compact design with short face to's fit between two flanges,with studs passing from one flange through other. The valve is held in place and sealed with gasket by the tension of studs.A resilient seated butterfly valve wafer type is a lightweight, maintenance-free, cost-effective, and reliable solution to various applications.


Main Features of NORTECH PTFE lined butterfly valve


  • Quality and service:more than 20 years of experiences of OEM/ODM services for leading european valve companies.
  • Quick delivery,ready for shipment 1-4 weeks,with considerate stock of resilient seated butterfly valves and components
  • Quality guarantee 12- 24 months for resilient seated butterfly valves
  • Quality control for each piece of butterfly valve

Main features of PTFE lined butterfly valve

  • Compact construction results in low weight, less space in storage and installation.
  • 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 designed 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.


Wafer Butterfly Valve 1


Resilient seated butterfly valve

pinless design

        Wafer Butterfly Valve 2

please refer to our catalogue of butterfly valves for details or contact our sales team directly.

Types of Operation for PTFE lined butterfly valve

Handle lever 
  • Butterfly valve PN10/16,Class125/150 DN32-DN200
  • Butterfly valve PN25,DN32-DN150
Manual gearbox
  • full range from DN32-DN600
Pneumatic actautor
  • Pneumatic actuator double acting(DA)
  • Pneumatic actuator spring return(SR)
Electric actuator
  • On-off type electric actuator
  • Modulating actuator
  • Water proof
  • Explosion proof
Free stem ISO5211 mouting pad   
  • stem dimension and ISO flange customized on request of customer.        

Technical specification of PTFE lined butterfly valve


Design and Manufacturer API609/EN593
Face to face ISO5752/EN558-1 series 20
Flange end ISO1092 PN6/PN10/PN16/PN25,ANSI B16.1/ANSI B 16.5 125/150
Pressure rating PN6/PN6/PN16/PN25,ANSI Class125/150
Test and Inspection API598/EN12266/ISO5208
Actuator mounting pad ISO5211


Product Application:

What is the PTFE lined butterfly valve used for?

PTFE lined butterfly valve is widely used in

  • Water and waste effluent treatment plants
  • Paper, textiles and sugar industry
  • Construction industry, and drilling production
  • Heating, air conditioning, and cooling water circulation
  • Pneumatic conveyors, and vacuum applications
  • Compressed air, gas and desulphurization plants
  • Brewing, distilling, and chemical process industry
  • Transportation and dry bulk handling
  • Power industry

PTFE lined butterfly valve is certified with WRAS in UK and ACS in France,specially for the waterworks.



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