What is the difference between copper ball valve and stainless steel ball valve?
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(Summary description)Classified according to the structure of copper ball valve: floating ball type and fixed ball type. Main products such as: flanged floating ball valve, fixed ball two-piece ball valve, fixed ball soft sealing ball valve, fluorine-lined ball valve, fixed ball stainless steel high temperature ball valve, etc. 2. According to the copper ball valve circulation type classification: straight-through, three-way, four-way, five-way. Main products such as: straight-through one-piece ball valve, three-way flanged ball valve, etc. 3. Classified according to the assembly form of copper ball valve: one-piece, two-piece, three-piece, top-mounted type.
What is the difference between copper ball valve and stainless steel ball valve?
(Summary description)Classified according to the structure of copper ball valve: floating ball type and fixed ball type. Main products such as: flanged floating ball valve, fixed ball two-piece ball valve, fixed ball soft sealing ball valve, fluorine-lined ball valve, fixed ball stainless steel high temperature ball valve, etc. 2. According to the copper ball valve circulation type classification: straight-through, three-way, four-way, five-way. Main products such as: straight-through one-piece ball valve, three-way flanged ball valve, etc. 3. Classified according to the assembly form of copper ball valve: one-piece, two-piece, three-piece, top-mounted type.
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- Time of issue:2021-11-09
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The stainless steel ball valve manufacturer will analyze in detail for you: What is the difference between a copper ball valve and a stainless steel ball valve?
There are five differences between copper ball valve and stainless steel ball valve:
1. Different materials: The materials they use are completely different, and the materials used in the copper ball valve are mainly composed of copper. , The stainless steel ball valve is made of stainless steel.
2. The corrosion resistance is different: the copper ball valve has better corrosion resistance than the stainless steel ball valve, and the switching operation is smooth and labor-saving, and it is durable and does not leak. Stainless steel will not produce corrosion, pitting, rust or wear, and high temperature resistance. Generally, stainless steel is a bit more expensive.
3. Different temperatures: Under the same pressure environment, if the temperature of the medium does not exceed 80 degrees, stainless steel ball valves are sufficient, and if the temperature exceeds 80 degrees, copper ball valves must be used.
4. The price is different: the cost of the copper ball valve is more expensive, and the cost of the stainless steel ball valve is cheaper than that of the copper ball valve.
5. Different applicable materials: stainless steel ball valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid gold and radioactive media; copper ball valves are suitable for water, solvents, and acids And natural gas and other general working media, but also suitable for media with harsh working conditions, such as oxygen, hydrogen peroxide, methane and ethylene.
Stainless steel ball valve
The stainless steel ball valve can be closed tightly only with a 90-degree rotation and a small torque. The completely equal internal cavity of the valve provides a straight flow channel with little resistance for the medium. The main feature of the ball valve is its compact structure, easy to operate and maintain. The stainless steel ball valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. The ball valve body can be integral or combined. This type of valve should generally be installed horizontally in the pipeline.
Copper ball valve
The copper ball valve has a compact structure, reliable sealing, simple structure and convenient maintenance. The sealing surface and the spherical surface are often in a closed state, which is not easy to be eroded by the medium. It is easy to operate and maintain. It is suitable for general working media such as water, solvent, acid and natural gas. It is also suitable for media with harsh working conditions, such as oxygen, hydrogen peroxide, methane and ethylene, and is widely used in various industries. The ball valve body can be integral or combined.
Classification:
Stainless steel ball valve classification
1. Stainless steel pneumatic ball valve, stainless steel electric ball valve, stainless steel manual ball valve. Stainless steel ball valve materials are divided into 304, 316, 321 stainless steel ball valves.
2. The stainless steel ball valve relies on rotating the valve core to make the valve unblocked or blocked. The ball valve switch is light, small in size, can be made into a large diameter, reliable in sealing, simple in structure, easy to maintain, the sealing surface and the spherical surface are often closed, and it is not easy to be eroded by the medium, and it is widely used in various industries. Only its closing part is a sphere, and the sphere rotates around the center line of the valve body to achieve opening and closing of a valve.
Copper ball valve classification
1. According to the structure of copper ball valve classification: floating ball type, fixed ball type. The main products include: flanged floating ball valve, fixed-ball two-piece ball valve, fixed-ball soft-sealed ball valve, fluorine-lined ball valve, fixed-ball stainless steel high-temperature ball valve, etc. 2. According to the copper ball valve circulation type classification: straight-through, three-way, four-way, five-way. Main products such as: straight-through one-piece ball valve, three-way flanged ball valve, etc. 3. Classified according to the assembly form of copper ball valve: one-piece, two-piece, three-piece, top-mounted type. Main products such as: two-body fluorine-lined ball valve, three-body stainless steel ball valve, top-mounted ball valve, etc. 4. According to the diameter of the copper ball valve flow path: full-diameter type and reduced-diameter type. Main products such as: full bore flange ball valve, reduced bore ball valve, etc. Advantages of copper ball valve and stainless steel ball valve:
1. The fluid resistance is small, and its resistance coefficient is equal to that of a pipe section of the same length.
2. Simple structure, small size and light weight.
3. It is tight and reliable. The sealing surface material of the ball valve is widely used in plastics and has good sealing performance. It has also been widely used in vacuum systems.
4. Convenient operation, rapid opening and closing, only need to rotate 90° from fully open to fully closed, which is convenient for remote control.
5. Convenient maintenance, simple structure of the ball valve, generally movable sealing ring, easy to disassemble and replace.
6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the medium will not cause erosion of the valve sealing surface when the medium passes.
7. It has a wide range of applications, with a diameter ranging from a few millimeters to a few meters, and can be applied from high vacuum to high pressure.
How to use copper ball valve and stainless steel ball valve:
1. Make sure that the pipeline and valve have been flushed before operation.
2. The operation of the valve drives the valve stem to complete rotation according to the size of the input signal of the actuator: when it rotates 1/4 turn (900) in the forward direction, the valve is closed. When reverse rotation 1/4 turn (900), the valve opens.
3. When the direction indicating arrow of the actuator is parallel to the pipeline, the valve is open; when the indicating arrow is perpendicular to the pipeline, the valve is closed.
Copper ball valve and stainless steel ball valve installation and maintenance
Ball valve installation:
1. It must be confirmed that the pipeline and valve have been cleaned before operation.
2. The actuator operation of the valve drives the valve stem to complete rotation according to the magnitude of the input signal: when it rotates 1/4 turn (900) in the forward direction, the valve is closed. When reverse rotation 1/4 turn (900), the valve opens.
3. When the direction indicator arrow of the actuator is parallel to the pipeline, the valve opens; when the arrow is perpendicular to the pipeline, the valve closes.
Ball valve repair:
Longer service life and maintenance-free time will depend on several factors: maintaining a harmonious temperature/pressure ratio under normal working conditions, and reasonable corrosion data.
Note: When the ball valve is closed, the fluid pressure in the valve body still exists
Before maintenance, remove the pipeline pressure and leave the valve in the open position
Before maintenance, disconnect the power or air supply
Before maintenance, separate the actuator from the bracket
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