What is a globe valve used for?
In the Jinbin workshop, a large number of globe valves are undergoing final inspection. According to customer requirements, their sizes range from DN25 to DN200.（2 Inch globe valve）
As a common valve, the globe valve mainly has the following characteristics:
1.Excellent sealing performance: The core sealing structure features a tight fit between the valve disc and the valve seat. When closed, the valve disc presses against the valve seat under pressure, achieving a tight cut-off. It is suitable for applications where medium leakage needs to be prevented (such as gas and steam pipelines).
2.Outstanding regulating performance: The valve disc rises and falls along the axis of the valve stem, and the flow rate can be precisely adjusted by controlling the opening degree. The flow rate changes smoothly from fully open to fully closed, making it suitable for scenarios that require fine flow control (such as temperature adjustment in heating systems).
3.Large flow resistance: The medium needs to turn and flow out after passing through the valve seat, with a tortuous path. The pressure loss is greater than that of straight-through valves such as gate valves. Therefore, it is not suitable for pipelines with large flow and low resistance requirements (such as the main water supply pipe).
4.Directional installation: It must be installed in accordance with the "low in, high out" principle (the medium flows in from below the valve disc), ensuring that the valve disc is assisted in sealing by the medium pressure when closed, and the operation is effortless. Installing it in reverse will lead to seal failure and laborious operation.
5.Wide range of applicable media: It can be used for clean media such as water, steam, oil products, and gas, but it is not suitable for high-viscosity or granular media (as it can easily wear the sealing surface and damage the sealing performance).
Based on these characteristics, stop valves are widely used in scenarios that require tight shut-off and precise regulation:
1. Water supply and drainage system: As a globe control valve for branch pipelines, it cuts off or regulates water volume to ensure zonal control of the pipeline network.
2. Steam system: Cut off the steam supply or regulate the flow rate in industrial steam pipelines, and utilize its sealing property to prevent steam leakage and energy loss.
3. Petrochemical industry: When transporting crude oil, solvents and other media, the flow rate is controlled by adjusting the opening degree to meet the feeding requirements of the reaction device.
4. Heating and air conditioning systems: Regulate the flow of hot water or refrigerant to achieve precise control of room temperature and enhance energy utilization efficiency.
Gas and compressed air pipelines: As a safety shut-off valve, it quickly closes during maintenance or faults to prevent medium leakage and potential safety accidents.
With the advantages of reliable sealing and flexible regulation, the globe valve flanged has become a core component in pipeline systems that combines the functions of cutting off and regulating. It is especially irreplaceable in scenarios with medium and small diameters and high requirements for sealing and regulation.（Globe Valve Price）
