Stainless Steel Butterfly Valves PN16 Concentric Design WRAS DVGW Rubber

Stainless Steel Butterfly Valves PN16 Concentric Design WRAS DVGW Rubber

butterfly valves pn16 wafer type and concentric design, WRAS,DVGW rubber avaibable

• Valve body is designed to meet MSS SP-67 and API609.
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• Upper flange standards: Valve mounting flange and stem shall be per ISO 5211.
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• Flange Standard: GB 9113.1N ANSI 150 B16.5,JIS B2211.
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• Pressure Rating:
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• Bi-directional bubble-tight shut off to: 16 bar(230psi)  DN40~DN600mm
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• And tested to 110% of full rating: 18 bar(260psi)  DN40~DN600mm
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• Shell Testing:
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• The body strength can stand 150% of full rating: 24 bar(340psi)    DN40~DN600mm

Main Features

• Tight sealing and zero leakage under rated pressure(1 .OMpa,1.6Mpa).
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• Multi-sealing design separates valve body from working media to ensure zero leakage.
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• Main parts are designed to fit exactly into each other to ensure a better sealing, smaller torque, bigger flow, lower fluid resistance as well as flexible two-side flow.
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• Scientific design for the sealing surface of valve seat makes a closed connection between the valve and the pipe flange without any additional ccessories.
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• Designed and produced based on multi-standard system, so the valve could be applied to various of flange and enjoy excellent interchangability.
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• All parts are embalmed, suitable for various complex work environment.
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• Others: According to customer requirements.

 
Size: DN50 - 3000 
Temperature: -15℃ - 150℃ 
Pressure: 1.0MPa/1.6MPa 

Materials

Materials of Body :  Ductile Iron (GGG40, GGG50). Cast Iron (GG25), Stainless Steel 

Materials of Disc :  Stainless Steel. Nickel Plated, Ductile Iron, Ductile Iron Coated Plastic,

                              Titanium Steel, Copper Alloy etc

Materials of Seat :  Ethylene-Propylene-Diene Monomer (EPDM), Polytetrafluoroethylene (PTFE), 

                               Nitrile Rubber (NBR), Chloroprene, Chlorosulfonated Polyethylene (Hypalon), 

                                 Silicon, Fluoroelastomer (VITON) , Caoutchouc etc.

Materials of Stem :  Stainless Steel. Carbon Steel ,2Cr13

 
A butterfly valve is a type of flow control device, typically used to regulate a fluid flowing through a section of pipe. 
The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe. 
The plate has a rod through it connected to an actuator on the outside of the valve. Rotating the actuator turns the 
plate either parallel or perpendicular to the flow. Unlike a ball valve, the plate is always present within the flow, 
therefore a pressure drop is always induced in the flow regardless of valve position.

 
Wafer Rubber Seated Butterfly Valves