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Technical Specifications for Multi-Functional Pump Control Valves
Introduction
Multi-functional Pump Control Valves are hydraulic components that are used to control liquid flows in various industrial and commercial settings. A control valve alters the flow rate and pressure of liquids, which is typically regulated by an actuator or motor employed on the valve. The most common types of control valves are globe-type, standpipe-type and pressure relief valves, which can be used in a variety of applications, ranging from water pressure and flow to chemical feed, fuel injection and steam turbines. To determine the ideal type of control valve for a specific application, it is necessary to understand the key features of each type of valve, as well as their respective technical specifications.
Globe Valves
Globe valves use a disk-shaped closure element to regulate flow and pressure. In order to isolate flow, the disk is seated against the valve body, which limits any movement of liquid across the disk. The pressure exerted on the disk can range from a few inches to hundreds of pounds per square inch. Globe valves are typically used for controlling pressure or flow in a variety of applications, including water treatment systems, beverage distribution and turbo-machinery.
The inlet and outlet connections on globe valves are typically flanged and threaded connections. The flow direction is typically indicated by an arrow. When properly installed, the globe valve should move freely from its open position to its closed position.
Technical Specifications:
• Flow Direction: Generally forward or reverse
• Sizes Available: 2 in. through 30 in.
• Leakage: Classified as either a full-lift type or partial-lift type
• Pressure Rating (psi): 275 through 900
• Operating Temperature Range: -20 to 550 degrees Fahrenheit
• Connection Types Available: Threaded, flanged, etc.
Standpipe Valves
Standpipe valves are used to control pressure level when used in conjunction with other liquid flow components in a system. They are typically installed in between a system’s pressure and downstream flow points. The standpipe valve consists of two parts: a cylinder mounted on top of the outlet fitting and a closure element at the bottom of the cylinder. The closure element can be manipulated to regulate the amount of flow and pressure.
The size of the standpipe valve is typically determined by the size of the downstream pipe connection. The standpipe valve is typically installed horizontally with its outlet connected to the downstream pipe below the valve.
Technical Specifications:
• Flow Direction: Generally forward or reverse
• Sizes Available: 2 in. through 10 in.
• Leakage: Classified as either a full-lift type or partial-lift type
• Pressure Rating (psi): 150 through 600
• Operating Temperature Range: -20 to 350 degrees Fahrenheit
• Connection Types Available: Threaded, flanged, etc.
Pressure Relief Valves
Pressure relief valves are used to control the pressure in a system when the system’s pressure exceeds the allowable range. These valves are typically used in system control and/or protection to ensure the safety of operators and the integrity of the system. They are installed in series before any pressure-related components to reduce pressure in two ways: by relieving pressure through a relief port, or by closing off the pressure and preventing it from rising further.
The size of the pressure relief valve is typically determined by the size of the outlet pressure connection. The relief valve should be installed horizontally with its outlet connected below the valve.
Technical Specifications:
• Flow Direction: Generally forward or reverse
• Sizes Available: 2 in. through 10 in.
• Leakage: Classified as either a full-lift type or partial-lift type
• Pressure Rating (psi): 150 through 600
• Operating Temperature Range: -20 to 350 degrees Fahrenheit
• Connection Types Available: Threaded, flanged, etc.
Conclusion
Multi-functional Pump Control Valves are essential components of liquid flow control systems in a variety of industrial and commercial applications. Each type of valve, from globe valves to standpipe valves to pressure relief valves, has its own unique technical specifications, which need to be taken into consideration when determining the ideal type of valve for a specific application. By understanding the key features and technical specifications of each type of valve, engineers can ensure that their systems are functional and reliable, and can meet the operational requirements of any given setting.
