Waterway Flange Butterfly Valve

Flange Butterfly Valve is a kind of valve that uses circular butterfly plate as opening and closing parts and turns with the valve stem to open, close and adjust the fluid channel. The butterfly valve disc is installed in the diameter direction of the pipeline, in the butterfly valve body cylindrical channel, the disc disc rotates around the axis, the rotation Angle is between 0°~90°, when the rotation to 90°, the valve is in a fully open state. The relationship between the opening of the flange butterfly valve and the flow rate is basically linear proportional change, which is suitable for the adjustment and control of the flow rate.

• Compact structure: Flanged butterfly valve is small in size, light in weight, easy to disassemble and repair, and can be installed in any position.

• Easy operation: 90° turn open quickly, easy to operate and labor-saving.

• Good flow characteristics: The pressure drop generated by the butterfly valve is small, and it has good flow control characteristics.

• Reliable sealing: The sealing structure of the flanged butterfly valve adopts polytetrafluoroethylene, synthetic rubber and other materials, sealing reliable and replaceable, to achieve two-way sealing.

• Corrosion resistance: The butterfly plate can be sprayed with a coating, such as nylon or polytetrafluoroides, according to user requirements to enhance corrosion resistance.

Design Standard:    API609, EN593

Connection Flange: ISO 7005-2, EN 1092-2, GOST

Top Flange:             ISO 5211

Face to Face:           API609A, EN558

Test Standard:         API598, EN12266-1

Working Pressure:   PN10/16/PN25/PN40