High Performance Wafer Butterfly Valve

Watis is a large supplier of high performance wafer butterfly valves with its global headquarters in Wenzhou, providing comprehensive procurement and after-sales services. When this butterfly valve is opened, the eccentric disc quickly moves away from the valve seat sealing surface, which helps to extend the life of the valve. It is highly recognized in the air separation systems of petrochemical projects in Russia and the Middle East.

Send Inquiry

Product Description

Double Eccentric Structure Design
When the valve opens, the eccentric disc quickly moves away from the seat sealing surface, resulting in only short contact between the disc and the seat sealing surface. This design prolongs the lifespan of the valve.

Implementation Standards

Design Standard	API 609, EN 593, GOST
End Standard	ANSI B16.5 CL. 150LB AS 2129 Table D and E BS 10 Table D and E ? MSS SP44 CL. 150LB AWWA C207 150LB ISO 2531 PN10 and PN16 ISO 7005, PN10 and PN16
	WAFRF
Inspection & Test	API 598, EN 12266-1, GOST
Face to Face	API 609, EN 558, ASME B16.10, GOST
Top Flange	ISO 5211

Application

Size	3"-80", DN80-DN2000
Pressure Rating	Class 150-600, PN16-PN40
Operating Temperature	Soft Seat: -29~200℃, Metal Seat: -29~450℃
Drive mode	Turbine, pneumatic, electric
Operating Environment	Ballast and bilge system Chemical processing Desalination plants,Drilling rigs,Drinking water Dry powder,Food and beverage,VPSA Gas plants HAVC Mining industry,Paper industry,Sand handling,Seawater,Sugar industry Thermo technical water treatment Waste water
Operator	Lever, Gear, Electric, Pneumatic, etc.
Body Material	Carbon Steel, Stainless Steel, Duplex Stainless Steel, Alloy Steel, Monel, AI Bronze, etc.
DISC	Stainless Steel AL-Bronze
STEM	17-4PH XM-19 Monel K500
SEAT	VITON PTFE/RPTFE/PPL/PEEK

Performance Advantages

1.Long lifespan: Efficiently protects the seat ring from wear and erosion due to the special design.
2.Reliability: Double eccentric design ensures optimal sealing performance and low torque.
3.Easy replacement: Quick replacement of valve seat and packing in minutes with repair kits available.
4.Maintenance-friendly: Made with corrosion-resistant materials,eliminating the need for shutdowns,lubrication,and maintenance.
5.Bi-directional pressure sealing,no flow direction limitation during installation.

High Performance Wafer Butterfly Valve