What is a Check Valve?
A check valve is a type of valve that allows fluid to flow in only one direction, preventing backflow. It consists of a valve body with a hinged flap or disc attached to the body. When the fluid flows in the correct direction, the disc is pulled aside, allowing the fluid to pass through the valve. When the flow stops or reverses, the disc returns to its original position, blocking fluid from flowing backward.
Stainless steel is commonly used in check valve construction because it is corrosion-resistant. Check valves are widely used in applications such as water treatment plants, chemical processing facilities, and oil and gas pipelines to prevent backflow and protect equipment and piping from damage.
Check valves are general-purpose fittings suitable for liquids, gases, and steam. They enhance operational safety and can replace more complex fittings when needed. The use of such a valve is advantageous due to its short installation distance, reduced installation time, and space-saving design, making the Unox Disco Check Valve a preferred choice.
Advantages
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Reliability: Strong and dependable. These valves can withstand harsh operating conditions for a long time.
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Durability: Resistant to corrosion and wear. Suitable for use in various environments.
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Cost-Effective: Brass disco check valves are relatively affordable, offering cost savings for businesses.
Disadvantages
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Flow Control: Brass disco check valves are not suitable for precise flow control; they are better for coarse flow regulation.
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Maintenance: Requires regular maintenance to prevent clogging.
Applications
Brass disco check valves are widely used across various industries to control the flow of water, oil, chemicals, and gases:
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Water piping systems: To control water flow and prevent leaks.
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Oil piping systems: To regulate oil flow and prevent leaks.
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Chemical piping systems: To manage chemical flow and prevent leaks.
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Gas distribution systems: To control gas flow and prevent leaks.
Selection Criteria
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Flow Capacity: Ensure the valve meets the required system flow rate.
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Pressure Rating: Ensure the valve can withstand the system pressure.
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Material: Ensure the valve material is suitable for the system’s requirements.
Pricing
Prices vary depending on valve size, flow capacity, and material. Generally, brass disco check valves are more affordable than check valves made from other materials.
Technical Specifications
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Body: MS 58 Brass
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Disc: AISI 304 – CF8M
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Spring: AISI 304 – CF8M
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Spring Pressure Plate: AISI 304 – CF8M
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Sizes: DN15 – DN100
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Operating Temperature: -10 °C – 300 °C
Usage Areas
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Heating / hot water systems
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Water treatment and sewage systems
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Steam production and supply systems
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Energy pipelines (water, air, steam, etc.)
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Directional systems in refineries and chemical plants
Applications
Check valves can be installed between pipeline flanges for liquids, gases, and steam regardless of orientation.
Components
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Body
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Disc
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Spring
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Spring Pressure Plate
Ensure compliance with quality standards (ISO – TSE).