The butterfly valve is simple in structure, small in size and light in weight, and consists of only a few parts. Moreover, it can be quickly opened and closed by rotating 90°, and the operation is simple, and the valve has good fluid control characteristics. The butterfly valve's disc is mounted in the diameter direction of the pipe. In the cylindrical passage of the butterfly valve body, the disc-shaped disc rotates around the axis, and the rotation angle is between 0° and 90°. When the rotation is 90°, the valve is fully open. When the flange butterfly valve is in the fully open position, the thickness of the disc is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is small, so it has better flow control characteristics. The butterfly valve has two sealing types: a spring seal and a metal seal. Elastomeric sealing valve, the sealing ring can be mounted on the valve body or attached to the periphery of the disc.
1. The lug type high performance butterfly valve has a unique structure and double-sided pressure bearing design.
2. High-performance butterfly valve full range of pressure ring patented structure, ultra-reliable sealing.
3. Butterfly valve full range of anti-static guiding device structure, ultra-small operating torque.
Flange Butterfly valve
150LB 300LB PN10 PN16 10K
Face to face
API 609, MSS SP-67, MSS SP-68, BSEN 1092
End Connection Standard
ASME B16.5 DIN2501 PN10/PN16
Inspection and Test
Wafer,lug or U type flange body style fit between FF or RF flanges
PTFE bushing ensure the maximum shaft support and centralized alignment
360ºC polished disc assures positive on-off
ISO5211 mounting Pad