Singe Eccentric Butterfly Valve

Summary:

　　Product Features

　　Through-shaft type, single-disc valve

　　Soft sealing and multi-level hard sealing

　　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

　　Flange, lug, and ear-type connections

　　Product Specifications

　　Size range: DN50–1200, NPS2–48

　　Pressure range: 0.6–4.0 MPa, 125–300 LB

　　Connection methods: Flange, Wafer, Lug

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

　　Flow characteristic: Equal percentage

　　Flow coefficient: Cv 125–125,000

　　Leakage Level: Class VI

　　Adjustable ratio R: 30:1

　　Applicable temperature: -29°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
Sealing ring	NBR, EPDM, PTFE, Multi-layered Hard Seals
Filler	Flexible Graphite / Polytetrafluoroethylene PTFE
Room-temperature type	-29 to 120°C
High-temperature type	-29 to 425°C (multi-layered hard sealing)
Applicable Medium	Clean water, wastewater, saltwater, steam, gas, food, pharmaceuticals, oils, acids, bases, and more