Shanghai Pudie Bidirectional Butterfly Valve Series Products

Double directional butterfly valve D342H-Shanghai Pudie Valve Co., Ltd

1.Bidirectional butterfly valveIntroduction:
The double eccentric bidirectional metal sealed butterfly valve series is a new butterfly valve product developed by Valve Supply Network Company through user demand research, which has introduced advanced butterfly valve manufacturing technology from home and abroad. The valve has a reasonable structure, tight and reliable sealing, low flow resistance, low pressure difference, flexible and labor-saving driving, and doubled service life. Compliant with GB12238-2008 "Butterfly Valves with Flange and Clamp Connections" and JB/T8527-1997 "Metal Sealed Butterfly Valves" standards, and referring to the American ANSI/AWWAC504 standard, CAD software is used for design assistance. Double eccentricity, also known as axial eccentricity, where the centerline of the valve shaft is not on the sealing surface of the valve plate; Radial eccentricity: The centerline of the valve shaft is not on the centerline of the valve channel, and the valve plate adopts a double plate truss type multi channel structure. When the flow rate is high, the water flow in each channel can balance each other, avoiding the valve plate from shaking and ensuring the stability of the valve. The special design and geometric structure enable the valve plate to have a tighter function as it closes. When the valve is opened, as long as the valve shaft rotates slightly, the valve plate will completely detach from the valve seat, reducing friction and presenting the minimum optimal opening torque. The seal is tight, reliable, and durable.

2.Bidirectional butterfly valveApplication scope:
Double eccentric bidirectional metal sealed butterfly valves are widely used in hydraulic engineering, tap water, power circulation water, petroleum, chemical and other industrial pipelines to cut off the flow of media.

3.Bidirectional butterfly valveStructural features:
◆The butterfly valve is designed for bi-directional pressure bearing and bi-directional metal sealing. Its special structural form allows for arbitrary adjustment of the sealing ratio. It adopts an eccentric S-shaped conical valve seat sealing surface, which makes the sealing surface less prone to damage and improves the service life of the valve.
◆The operating torque is small, rotating 90 degrees to open and close, lightweight and fast.
◆Low flow resistance, good hydraulic characteristics, flow characteristics approximate inclined straight lines, good energy-saving effect, bidirectional sealing has no directional requirements for water flow.
◆Reliable sealing, with a lifespan of over 25000 opening and closing cycles.
◆The valve plate adopts a double flat plate truss type multi-channel design that conforms to fluid mechanics performance.

4.Bidirectional butterfly valveStandard specifications:
◆Design and Manufacturing Standards: GB/T 12238-2008, JB/T8527-1997
◆Structural length standard: GB/T 12221-2005
◆Connection flange standard: GB/T 9113
◆Pressure and temperature rating: GB/T 12224-2005
◆Test and Inspection Standard: GB/T 13927-2008