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
NORTECH is one of the leading China PTFE lined butterfly valve Manufacturer & Supplier.