Structure and function:Metal PTFE seal butterfly valve

Wafer type high performance triple offset Metal+PTFE/TEFLON seal butterfly valve (fire ssafety type). Lever/worm gear/pneumatic/electric actuator.
Product features
¡¤Final inspection tests to API598/DIN3230.
¡¤Face to face per DIN3202/ISO5752
¡¤flange ends dimension DIN2501/ANSI B 16.5/ANSI B 16.47
¡¤To DIN3352 or API609
Materials
¡¤seat face weld overlay, micro finished.
¡¤shafts of stainless steel
¡¤ Body and disc: WCB/Stainless steel CF8,CF8M.
¡¤Disc sealing ring in PTFE or Teflon.
Corrosion protection
¡¤ Inside and outside epoxy coating
¡¤Applicable temperature:-20 -150  different raw material for different work temperature
¡¤Applicable medium: water, oil, gas and other causticity medium (different raw material for different medium)