Electric Hard Seal Butterfly Valve

• Customization: Available
• Media: Gas Oil Water Electricity
• Driving Mode: Electric
• Model NO.: D971H-16C
• Connection Form: Flange
• Structure: Three-Eccentric Sealing
• Seal Form: Metal and Hard Sealing
• Valve Stem: Carbon Stainless
• Work Pressure: Low Pressure (Pn<1.6mpa)
• Working Temperature: Normal Temperature (-40°C<T<120°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Casting
• Standard: ANSI/ASME Standard Valves
• Application: Industrial Usage, Water Industrial Usage
• Voltage: 24V 220V 380V 110V
• Open/Close Time: 25s
• Rotation: Quarter Turn Electric Actuator
• Electric Actuator Colour: Red Blue Black
• Transport Package: Wooden Case
• Specification: 6
• Trademark: Brooke
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000pieces/Years
• Package Size: 3.00cm * 3.00cm * 6.00cm
• Package Gross Weight: 5.000kg
• Lead Time: 2 days (1 - 10 Pieces) ; To be negotiated ( > 10 Pieces)

Product Description

 

Product Details:

       The electric flanged hard-sealed butterfly valve adopts a precision-engineered J-shaped elastic sealing ring and a triple eccentric multi-layer metal hard sealing structure. It is widely used in industrial pipelines with medium temperatures ≤425°C, such as in metallurgy, power generation, petroleum, chemical industries, as well as water supply, drainage, and municipal construction, serving to regulate flow and cut off fluids.

Performance Features:

1. Triple-Eccentric Sealing Structure
   This valve adopts a triple-eccentric sealing structure, ensuring minimal wear between the valve seat and the disc. The sealing function becomes tighter as the valve closes.

2. Dual Advantages of Metal and Elastic Sealing
   The sealing ring is made of stainless steel, offering the combined benefits of metal hard sealing and elastic sealing. It delivers excellent sealing performance under both high and low temperatures, while being corrosion-resistant and ensuring a long service life.

3. Corrosion-Resistant and Durable Sealing Surface
   The disc sealing surface is welded with cobalt-based hard alloy, making it resistant to corrosion and significantly extending its service life.

4. Bidirectional Sealing Functionality
   The valve supports bidirectional sealing, making it unaffected by the medium's flow direction or spatial installation position. It can be installed in any orientation.

 

 

Detailed Photos

 

Product Parameters

Category	Parameter	Value/Material
Test Pressure	Strength Test	PN1.5MPa, PN1.6MPa
	Sealing Test	PN1.1MPa, PN1.76MPa
Main Components	Body	Ductile iron, cast steel, stainless steel
	Ball	Gray cast iron, ductile iron, forged steel, stainless steel, special materials
	Stem	Carbon steel, stainless steel
	Seal Ring	Rubber, PTFE, EPDM
	Packing	PTFE, flexible graphite
Applicable Conditions	Suitable Medium	Steam, oil, nitric acid, acetic acid, etc.
	Operating Temperature	Carbon Steel: -29ºC≤425ºC; Stainless Steel: -40ºC≤650ºC

FAQ

1. Question:What is a three eccentric butterfly valve?
    Answer:Triple eccentric butterfly valve is a fluid control valve commonly used in industrial pipelines, and its structure is divided into three aspects of eccentricity:
1. The centerline of the valve body does not coincide with the centerline of the sealing surface;
2. The centerline of the valve stem does not intersect with the sealing surface;
3. The axis of the valve plate cover does not coincide with the centerline of the valve body and the centerline of the valve stem.

2. Question:Does the three eccentric butterfly valve have directional issues?
     Answer:A three eccentric butterfly valve is a one-way flow valve that typically requires the direction of the arrow on the valve body to be the same as the flow direction of the medium. Therefore, the three eccentric butterfly valve can be said to have directional issues, and incorrect direction can lead to poor valve performance.