Wafer Centerline Butterfly Valve

Size: 2~8″(DN50~DN200)
Body Materials: Cast Iron, Ductile Iron, WCB , Stainless Steel, Bronze
Seat Materials: NBR, EPDM, VITON, PTFE
Disc Materials: Ductile Iron, WCB, CF8,CF8M, Al-bronze C958
Stem Materials: SS416, SS304, SS316Connection:AWWA C606-2006 Grooved and Shouldered Joints
Pressure Rating: PN10, PN16, JIS5K,JIS10K,JIS16K
Surface Treatment: ANSI/AWWA C550
Medium: Water, gas etc.

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Product Description

Products Details

What is the Fire Protection Grooved Butterfly Valve?

Grooved butterfly valve (Gear actuator & tamper switch) is light weight valve with signal gearbox, and it is grooved connection. The valve is fully open or closed when the disc is rotated a quarter turn.The Grooved signal butterfly valve is a grooved clamp connection valve designed completely based on the principle of symmetry. It is symmetrical in the axial centerline, radially centerline, two-way full pressure seal, with a signal device, which can give the valve action. It is mainly used in various pipelines of water supply and drainage, building fire protection and other systems, especially in fire protection pipelines, to cut off and adjust the flow of the medium.

Product Drawing

Part Name Body Butterfly   plate Valve   seat Stem
Material Ductile   Iron Ductile   Iron EPDM Stainless   steel
Stainless steel Stainless   steel NBR carbon   steel
carbon steel carbon   steel


Main performance specifications
Nominal pressure PN (MPa) Test   pressure MPa Working temperature (℃) Applicable medium
strength seal
1 1.5 1.1 ≤80℃ water, air, oil, etc.
1.6 2.4 1.76


Performance characteristics

1)Novel structural design, small overall size and light weight;
2)The butterfly plate and valve body adopt the center symmetrical structure, the sealing is reliable, and the two-way full pressure and zero leakage are realized;
3)The valve stem can be opened and closed by 90° rotation, and the flow can be adjusted arbitrarily within the range of 0°~90°;
4)In addition to the handle worm gear drive, it can also realize electric, pneumatic, hydraulic and electric and hydraulic linkage;
5)The flow characteristics tend to be proportional to the characteristics, and the adjustment performance is good.
6)Small flow resistance and small pressure loss.
7)The valve seat is lined, which can prevent the medium from corroding the valve passage.
8)The operation mode is a worm gear reducer, which is easy to operate and labor-saving.

Application and Case

Wafer Centerline Butterfly Valve are used in water system,plumbing, gas system etc.Water works Butterfly Valves are used in many projects , such as China Taiwanese Building 101, Xiamen Building,Wuhan Expo Building and other famous landmark projects.