Center Line Butterfly Valve

Summary:

　　Product Features

　　Through-shaft type, single-disc valve

　　Valve seat and valve body liner are integrally formed.

　　High Cv value, strong flow capacity

　　Flow regulation scenarios applicable

　　Double-directional sealing with zero leakage

　　Opening and Closing Positioning Mechanism

　　Low-leakage packing seal

　　Quick operation, with optional transmission methods

　　Bilateral and Flanged Connections

　　Product Specifications

　　Size range: DN50–3000, NPS2–120

　　Pressure range: 0.25–1.6 MPa, 125–150 LB

　　Connection methods: Flange, Wafer

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

　　Flow characteristics: Approximately equal percentage

　　Flow coefficient: Cv 140–260,000

　　Leakage levels: Level III, Level IV, Level V

　　Adjustable Ratio R: 30:1

　　Applicable temperature: -46°C to +560°C

　　Major component materials

Name	Materials
	GB/T 12237			API 609
Valve body	WCB	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti	WCB	CF8	CF8M
Valve stem	2Cr13	17-4PH	17-4PH	F6a	17-4PH	17-4PH
Valve disc	1Cr18Ni9Ti	0Cr17Ni12Mo2		CF8	CF8M
Valve seat	NBR, EPDM, PTFE
Filler	Flexible Graphite / Polytetrafluoroethylene PTFE
Applicable Temperature	-29 to 120°C
Applicable Medium	Clean water, wastewater, saltwater, steam, gas, food, pharmaceuticals, oils, acids, bases, and more