Working Principles of Regulating Valves, Globe Valves, Gate Valves, and Check Valves
The regulating valve, also called the control valve, is used to control the amount of the fluid. When the regulating part of the valve receives a regulating signal, the valve stem will automatically control the opening and closing of the valve according to the signal, thereby regulating the fluid flow rate and pressure. Regulating valves are often used in heating, gas, petrochemical and other pipelines.
Globe valves, also known as shut-off valves, apply pressure by rotating the valve stem to completely seal the valve seat outlet, thereby preventing fluid flow. Globe valves are commonly used in natural gas, liquefied gas, sulfuric acid and other corrosive gas and liquid pipelines.
A gate valve, like a gate, controls the fluid by rotating the valve stem to control the vertical movement of the gate plate. The sealing rings on both sides of the gate can fully seal the entire section; the gate valve can only be fully open and fully closed, and cannot be used as a valve for regulating flow. Gate valves are mainly used as shut-off devices on pipelines such as tap water, sewage, and ships.
The swing check valve relies on the pressure of the fluid to open the valve disc. When the pressure of the fluid in the valve inlet and outlet pipes is balanced, the valve disc can be closed by its gravity to prevent the fluid from passing through. It belongs to the automatic valve category, and its main function is to prevent fluid from flowing back. Swing check valves are mainly used in petroleum, chemical, pharmaceutical and other pipelines.
Globe valves, also known as shut-off valves, apply pressure by rotating the valve stem to completely seal the valve seat outlet, thereby preventing fluid flow. Globe valves are commonly used in natural gas, liquefied gas, sulfuric acid and other corrosive gas and liquid pipelines.
A gate valve, like a gate, controls the fluid by rotating the valve stem to control the vertical movement of the gate plate. The sealing rings on both sides of the gate can fully seal the entire section; the gate valve can only be fully open and fully closed, and cannot be used as a valve for regulating flow. Gate valves are mainly used as shut-off devices on pipelines such as tap water, sewage, and ships.
The swing check valve relies on the pressure of the fluid to open the valve disc. When the pressure of the fluid in the valve inlet and outlet pipes is balanced, the valve disc can be closed by its gravity to prevent the fluid from passing through. It belongs to the automatic valve category, and its main function is to prevent fluid from flowing back. Swing check valves are mainly used in petroleum, chemical, pharmaceutical and other pipelines.
