Pneumatic Lined Fluorine Flanged Soft-Sealed Butterfly Valve

• Media: Water,Gas,Oil etc
• Driving Mode: Pneumatic
• Connection Form: Flange
• Model NO.: D641F46
• Structure: Centre Sealing
• Seal Form: Force Sealed
• Valve Stem: Normal
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Normal Temperature (-40°C<T<120°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Casting
• Standard: ANSI DIN JIS GOST GB/T
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Size: 1/2"-80"
• Operation: Handwheel, Gear, Electric, Pneumatic
• MOQ: 1
• Customized: OEM
• Transport Package: Wooden Case
• Trademark: SWF VALVE
• Origin: China
• HS Code: 8481804090

Product Description

 

Product Description

Introduction:

The D641F46 Pneumatic Flanged Lined Butterfly Valve is also a centerline soft-sealed butterfly valve, which is a commonly used conventional butterfly valve in pipelines. It has a simple structure, low flow resistance coefficient, and flow characteristics that tend to be linear. It will not retain debris.

Advantages:
 

1. Compact and lightweight, easy to disassemble and maintain, and can be installed in any position.
2. Simple and compact structure, small operating torque, and quick 90° rotation for rapid opening.
3. The flow characteristics are linear, with good regulation performance.
4. The connection between the butterfly plate and the valve stem uses a pinless structure, eliminating potential internal leakage points.
5. The outer circle of the butterfly plate is designed with a spherical shape, which improves sealing performance and extends the valve's service life. It can withstand more than 50,000 pressure opening and closing cycles while maintaining zero leakage.
6. The sealing components are replaceable and provide reliable double-directional sealing.
7. The butterfly plate can be coated with materials such as nylon or PTFE as per the user's requirement.
8. The pneumatic soft-sealed butterfly valve can be designed with flanged connections or wafer connections.

The working principle of the D641F46 Pneumatic Flanged Lined Butterfly Valve is based on the rotation of the valve to open or close the valve. The switch is lightweight and compact, and can be made in large sizes. It has reliable sealing, a simple structure, and is easy to maintain. The sealing surface and ball surface remain in the closed state, making it resistant to erosion by the medium, widely applied in various industries.

The sealing seat of the D641F46 Pneumatic Flanged Lined Butterfly Valve adopts a waterline design, and the valve plate sealing surface has a flat design, effectively preventing the jamming phenomenon caused by long-term inactivity of pneumatic valves, offering good fluid control characteristics. When the butterfly valve is in the open position, the thickness of the butterfly plate acts as resistance to the flow of the medium through the valve body.

The pressure drop across the valve is minimal, and when the valve is opened between approximately 15° to 70°, it provides flexible flow control. Therefore, for large-diameter flow regulation, the butterfly valve has significant advantages. It is not suitable for processes with particulate matter or high-temperature media.

Product Parameters

Parameter

Size	DN15 - DN2000 (2″ - 80″)
Pressure	PN6 - PN25 (Class 150 - Class 300)
Material	Carbon Steel, Stainless Steel, Alloy Steel, etc.
Media	Water, Oil, Gas, Steam, Corrosive Media, etc.
Operation	Handwheel, Gear, Electric, Pneumatic
Temperature	-40°C to +200°C

Detailed Photos