Triple-Eccentric Metal Seal Flanged High-Pressure Butterfly Valve

• Media: Water,Gas,Oil etc
• Driving Mode: Worm Gear
• Connection Form: Flange
• Model NO.: D343H
• Structure: Three-Eccentric Sealing
• Seal Form: Force Sealed
• Valve Stem: Normal
• Work Pressure: Pn6 – Pn25 (Class 150 – Class 300)
• Working Temperature: -40ºC~+200ºC
• 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:

Flanged high-pressure butterfly valve with triple-eccentric metal seal, designed for flow control and shut-off in pipelines (≤400°C). Ideal for metallurgy, power, petrochemical, water supply, and municipal systems.

Implementation Standards:

Design Standard: GB/T 12238, API609
Face-to-Face Dimensions: GB/T 12221, API609, ASME B16.34
Flange Connection: GB/T 9113, API609, ASME B16.10, 1505752
Testing and Inspection: GB/T 13927, API598
 

Product Advantages:

• The metal hard sealing butterfly valve adopts a three-eccentric sealing structure, with minimal wear on the valve seat and butterfly plate, ensuring a progressively tighter sealing function.

• The sealing ring is made of stainless steel, combining the advantages of both metal hard sealing and elastic sealing. It provides excellent sealing performance in both low and high-temperature conditions, with corrosion resistance and a long service life.

• The sealing surface of the butterfly plate is overlay-welded with cobalt-based hard alloy, making it highly wear-resistant and long-lasting.

• Large-sized butterfly plates use a trunnion structure, providing high strength, large flow area, and low flow resistance.

• The metal hard sealing butterfly valve has bi-directional sealing functionality, and its installation is not restricted by the flow direction of the medium or space orientation. It can be installed in any direction.

• The actuator can be installed in multiple positions (90° or 180° rotation), making it convenient for user operation.

Product Parameters

Parameter

Size	DN15 - DN2000 (1/2″ - 80″)
Pressure	PN6 - PN25 (Class 150 - Class 300)
Temperature	-40°C to +200°C
Material	Carbon Steel, Stainless Steel, Cast Iron, etc.
Media	Water, Steam, Oil, Gas, Corrosive Media, etc.
Operation	Handle, Gear, Electric, Pneumatic

 

Detailed Photos