Fluorine-lined Butterfly Valve

Summary:

　　Product Features

　　The valve body cavity and the valve disc are lined with fluoropolymer, providing nearly complete resistance to corrosion from all chemical media.

　　When the soft seat closes, a controlled amount of elastic deformation ensures zero leakage in the valve.

　　High Cv value, strong flow capacity

　　Flow regulation scenarios applicable

　　Double-directional sealing with zero leakage

　　Opening and Closing Positioning Mechanism | Low-Leakage Packed Seal

　　Quick operation, with optional transmission methods

　　Flange, lug, and ear-type connections

　　Product Specifications

　　Size range: DN50–800, NPS2–32

　　Pressure range: 0.6–1.6 MPa, 125–150 LB

　　Connection methods: Flange, Wafer, Lug

　　Drive methods: handwheel, worm gear, electric, pneumatic, and more

　　Flow characteristics: Approximately equal percentage

　　Flow coefficient: Cv 30–19,500

　　Leakage Level: Class VI

　　Adjustable ratio R: 30:1

　　Operating temperature: -29°C to +150°C

　　Major component materials

Name	Materials
Name	GB/T 12237		API 608
Valve body	WCB + FEP	1Cr18Ni9Ti + FEP	WCB + FEP	CF8M + FEP
Butterfly plate	2Cr13 + FEP	1Cr18Ni9Ti + FEP	F304 + FEP	F316 + FEP
Valve stem	2Cr13 + FEP	1Cr18Ni9Ti + FEP	F6a + FEP	F316 + FEP
Filler	Polytetrafluoroethylene PTFE
Gasket	Polytetrafluoroethylene PTFE
Bolt	1Cr18Ni9Ti	1Cr18Ni9Ti	A193 B8	A193 B8M
Applicable Temperature	-29 to 120°C	-40 to 120°C	-29 to 120°C	-40 to 120°C