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Metal seat ball valve

Features: Size: 2”-24”
Pressure Rating: PN10-PN64,150LB-600LB,10K-20K
Material: Carbon Steel,Stainless Steel
Design Standard: ASME B16.34,GB/T12237,JISB2071
Inspection Standard: API598,GB/T13927,JISB2003
Application medium: Water, Sewage, Gas
Application Temperature: 0-300℃

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A metal seat ball valve is a type of valve that uses a metal seat to create a tight seal between the ball and the valve body. It consists of a spherical ball with a hole in the middle and a metal seat pressed against it to form a seal. The ball is usually made of metal, such as stainless steel or brass, and the seat is made of a compatible metal or alloy.

When the valve is closed, the ball is pressed against the seat, creating a tight seal to prevent fluid flow. When the valve is opened, the ball rotates to align the hole with the flow path, allowing fluid to pass through. Metal seat ball valves are typically operated by a handle or lever that controls the rotation of the ball.

Metal seat ball valves are chosen for applications that require high pressure and temperature resistance, as well as resistance to corrosive and abrasive fluids. The metal seat provides a durable and reliable sealing mechanism, making them suitable for demanding industrial applications. They are commonly used in oil and gas, petrochemical, power generation, and chemical processing industries.

No.	Name	Materials	No.	Name	Materials
1	Secondary body	ASTM A162 316H	13	Packing	Graphite+Metal wire
2	Bolt	ASTM A453 Gr.660A	14	Packing gland	ASTM A182-F316H
3	Nut	ASTM A194 Gr.8C	15	Packing sleeve	ASTM A182-F316H
4	Gasket	Graphite+Metal wire	16	Packing plate	ASTM A182-F316H
5	Main seat	ASTM A182-F6a+CCC	17	Bracket	ASTM A182-F316
6	Ball	ASTM A182-F316H+CCC	18	Bolt	ASTM A453 Gr.660A
7	Secondary seat	ASTM A182-F6a+CCC	19	Nut	ASTM A194 Gr.8C
8	Belleville spring	Incinel 718	20	Belleville spring	Inconel 718
9	Main body	ASTM A182-F316H	21	Bolt	ASTM A453 Gr.660A
10	Universal joint	ASTM A638 Gr.660	22	Nut	ASTM A194 Gr.8C
11	Stem	ASTM A638 Gr.660	23	Belleville spring	Inconel 718
12	Packing washer	Graphite+Metal wire	24	Flat washer	N6

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Standards&Features:

Metal seat ball valves offer several advantages that make them a preferred choice in many industries and applications.

Here are some key advantages of metal seat ball valves:

1. Durability:

Metal seat ball valves are highly durable and can withstand harsh operating conditions, including high pressure, high temperature, and abrasive fluids. They are resistant to wear, erosion, and corrosion, making them suitable for long-term use in demanding environments.

2. Reliable sealing:

The metal seat provides a tight seal between the ball and the valve body, ensuring leak-free operation. The metal-to-metal contact creates a reliable sealing mechanism that is resistant to pressure differentials, ensuring a secure closure even under high pressures.

3. High flow capacity:

Metal seat ball valves have a full bore design, which means that the flow path through the valve is the same diameter as the pipeline. This allows for maximum flow capacity and minimal pressure drop, making them ideal for applications where high flow rates are required.

4. Versatility:

Metal seat ball valves can handle a wide range of fluids, including aggressive and corrosive substances. They are compatible with various chemicals, oils, gases, and abrasive slurries, making them suitable for diverse industrial applications.

5. Easy operation:

Metal seat ball valves are designed for easy operation and can be quickly opened or closed with a simple quarter-turn of the handle or lever. They offer smooth and precise control over the flow rate, allowing for accurate flow regulation.

6. Low maintenance:

Metal seat ball valves require minimal maintenance due to their robust construction and reliable sealing mechanism. They have a long service life and do not require frequent repairs or replacements, resulting in cost savings over time.

7. Fire-safe design:

Some metal seat ball valves are designed to meet fire-safe standards, meaning they can withstand and maintain their sealing capability even in the event of a fire. This makes them suitable for applications where fire safety is a concern.

Application:

Metal seat ball valves have a wide range of applications across various industries.

Some common applications include:

1. Oil and gas industry:

Metal seat ball valves are widely used in the oil and gas industry for controlling the flow of crude oil, natural gas, and other petroleum products. They can handle high-pressure and high-temperature conditions, making them suitable for upstream, midstream, and downstream operations.

2. Petrochemical industry:

Metal seat ball valves are used in the petrochemical industry for regulating the flow of various chemicals, solvents, and gases. They can withstand corrosive and aggressive substances commonly found in petrochemical processes.

3. Power plants:

Metal seat ball valves are essential in power plants for controlling the flow of steam, water, and other fluids. They are used in applications such as boiler feedwater control, turbine bypass, and cooling water systems due to their ability to handle high-pressure and high-temperature conditions.

4. Mining industry:

Metal seat ball valves are utilized in the mining industry for controlling the flow of slurries, tailings, and other abrasive materials. They are designed to handle the harsh conditions and abrasive particles frequently encountered in mining operations.

5. Water and wastewater treatment:

Metal seat ball valves find applications in water and wastewater treatment plants for regulating the flow of water, chemicals, and other fluids. They are resistant to corrosion and can handle the various chemicals used in the treatment processes.

6. Chemical industry:

Metal seat ball valves are used in the chemical industry for controlling the flow of various chemicals and corrosive substances. They are designed to handle aggressive fluids and can maintain a tight seal even in demanding chemical processes.

7. Food and beverage industry:

Metal seat ball valves are suitable for applications in the food and beverage industry where the flow of liquids and gases needs to be controlled. They are designed to meet hygienic requirements and can handle food-grade materials.

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