DIN/ANSI/API/ ASTM Cast Steel, Stainless Steel 304, 316 Double Flange End Concentric Butterfly Valve for Lever/Worm Gear/Electric/ pneumatic at -160

• Media: Water
• Driving Mode: Pneumatic
• Connection Form: Flange
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: D643H-16C DN250
• Structure: Centre Sealing
• Seal Form: Force Sealed
• Valve Stem: Normal
• Work Pressure: Low Pressure (Pn<1.6mpa)
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Material of Seal Surface: Soft Sealed
• Valve Body: Casting
• Standard: Gbapi
• Application: Industrial Usage, Water Industrial Usage
• Sales Volume: 5000sets
• Inventory: 8000sets
• Supply Capacity: 10000sets
• Return Rate: 0.001%
• Transport Package: Wooden Boxes
• Specification: 0.2ml³
• Trademark: BDV
• Origin: Wenzhou China
• HS Code: 8481804090
• Production Capacity: 5000
• Package Size: 20.00cm * 60.00cm * 85.00cm
• Package Gross Weight: 75.000kg

Product Description

Product Description

Electric soft seal butterfly valves, as a component used to achieve on-off and flow control in pipeline systems, have been widely used in many fields such as petroleum, chemical, metallurgy, hydropower, and so on. 

In the well-known butterfly valve technology, the sealing form mostly adopts a sealing structure, and the sealing materials are rubber, polytetrafluoroethylene, etc. Due to the limitations of structural characteristics, it is not suitable for industries such as high temperature resistance, high pressure resistance, corrosion resistance, and wear resistance. 

There is a relatively advanced butterfly valve where the valve body and valve seat are connected components, and the sealing surface of the valve seat is welded with heat-resistant and corrosion-resistant alloy materials. 

The multi-layer soft stacked sealing ring is fixed on the valve plate. Compared with traditional butterfly valves, this type of butterfly valve has the advantages of high temperature resistance, easy operation, no friction when opening and closing, and compensates for sealing with the increase of torque of the transmission mechanism when closing, improving the sealing performance of the butterfly valve and extending its service life.

material quality	carbon steel  , stainless steel
pressure	0.6mpa~4mpa
caliber	DN40~DN450
temperature	-29°C ~425°C
medium	water   ,oil
Connection method	flange
Driving method	manual,electric,pneumatic

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