Double Eccentric(Offset) Butterfly Valve

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Butterfly Valve

Flanged Butterfly Valve

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14 Series Double Eccentric(Offset) Butterfly Valve

Reliable Shut-Off for Water and Industrial Service

The 14 Series Double Eccentric(Offset) Butterfly Valve is designed for dependable isolation service in large-diameter water and industrial pipeline applications.
The double offset geometry minimizes seat wear and operating torque, providing stable sealing performance and extended service life.

1	valve seat and the system of seal can change
	مقاعد الصمامات وأنظمة منع التسرب القابلة للاستبدال في الموقع
2	strength the hardness of the valve seat
	قوة صلابة مقعد الصمام
3	Seal（hard，soft）
	إحكام الغلق (معدن إلى معدن، إحكام غلق ناع)
4	Packing ring
	حلقة التعبئة
5	Keyway Connection
	وصلة المفتاح
6	Packing self-sealing automatic adjustment
	تغليف ذاتي الإغلاق مع ضبط تلقائي
7	Valve stem follows fixed valve stem
	يتبع ساق الصمام ساق الصمام الثابت
8	High-performance copper bushing
	جلبة نحاسية عالية الأداء
9	Valve body thickness meets national standard requirements
	يتوافق سمك جسم الصمام مع متطلبات المعايير الوطنية.

Key Features

Double Eccentric(Offset) Geometry
The shaft is offset from both the valve centerline and the sealing centerline. This design allows the disc to disengage from the seat immediately upon opening, significantly reducing friction and wear.
Tight Shut-Off Performance
An elastomeric seat combined with a precision-machined disc ensures consistent sealing performance throughout the pressure range.
Low Operating Torque
The optimized disc profile and offset design reduce operating torque, allowing easy operation and direct mounting of manual, electric, or pneumatic actuators.
Robust Body Design
The valve body is designed to withstand demanding service conditions commonly found in municipal and industrial applications.
Bi-Directional Service
Suitable for installation in either flow direction, offering flexibility during installation and system design.

Application Scenarios

Municipal Water Supply Systems
Wastewater Treatment Plants
Seawater and Desalination Systems
Cooling Water Circuits
Industrial Process Water
Power and Utility Pipelines

Technical Data

Parameter	Specification
Size Range	DN80 – DN4000
Pressure Rating	PN10 / PN16 / PN25 / PN40
Body Material	Ductile Iron / Carbon Steel / Stainless Steel
Disc Material	Ductile Iron / Carbon Steel / Stainless Steel
Seat Material	EPDM / NBR
Shaft Material	Stainless Steel
End Connection	Flanged,wafer
Operation	Lever, Gear, Electric, Pneumatic,Hydraulic
Design Standard	EN 593 / AWWA C504
Test Standard	EN 12266