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PTFE Lined Butterfly Valve

Product Name: PTFE lined Butterfly Valve(or Teflon lined, PFA lined, FEP lined butterfly valve)

PTFE lined Butterfly Valve has center disc design and resilient seat design, can be fully lined and semi lined.  This products is mainly applied in the condition with stong corrosion, or the condition requires high clean of medium, to cut off and throttling in the pipeline. 

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Standard and Scope:
                                                                                                                               
Size: NPS 2"~48"  DN50~DN1200                            
Pressure Rating: Class 150 Class 150 PN6~PN25                
Connection: Double flange, Wafer type, Lug type and so on
Temprature:-29℃ ~ 150℃
Body Material: Cast iron, Ductile iron, Carbon steel, Stainless steel
Disc Material: Ductile iron, Carbon steel, Stainless steel, AL-BZ (Aluminum bronze)
Body Seat Material: Teflon, PTFE, F4, F46, FPA, FEP, Nylon and other polymer
Disc Seat Material(for Full lined butterfly valve): F46, PFA coated
Design and Manufacture: GB 12238,  API 609
Test and Inspection: GB/T13927, API609, API598; ISO 5208, BS EN12569
Face-to-Face: GB12221, API609, ISO5752, EN558-1 
End Connection: HG20592~HG20635,JB/T 78,JB/T 79, GB9113, ASME B16. 5(for NPS≤24), ASME B16.47, MSS SP-44(for NPS>24), ANSI 125/150; BS EN1092-1, DIN2501PN10/PN16, JIS10K, BS4504
 
Design feature 

Application: Food stuff, pharmacy, chemical industry, petrochemical, oil, gas, water treatment, and so on.With midium: hydrofluric acid,sulfuric acid,,chlorine,phosphoric acid,strong alkaline,aqua regia,etc, or portable water.

Split body, two pieces shaft, so the shaft and body are separated from the media, easy to replace the shaft without dismounting the valve from the pipe
No pin or no key contact medium
Bi-directional seal
Streamlined disc was designed so as to maximize flow, reduce flow resistance and save energy
Minimized operating torque, energy saving
Simple and compact structure and convenient maintain and installation
Long time services life, durable
Temperature restriction, depends on seat material
Reliable Anti corrosive performance,  applicable for various medium.
Small Flow block, Excellent regulation perfromance
Operated by Manual(Lever, Gearbox), Pneumatic actuator, Electric actuator.

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