Selection Principles and Advantages of Forged Steel Globe Valves

The open or close stroke of the forged steel globe valve stem is relatively short, and it has a reliable cut-off function. Therefore, this type of forged globe valve is suitable for cutting off, regulating and throttling.



The Selection Principles of Forged Steel Globe Valves

1. Pipelines or devices with high-temperature and high-pressure media, such as thermal power plants, nuclear power plants and petrochemical systems
2. Pipelines with low requirement for flow resistance, less consideration of pressure loss
3. Pipelines with requirements for flow or pressure regulation, but low regulation accuracy and small diameters
4. Pipe with smaller nominal diameters, such as water supply and heat supply projects in urban construction

1. During opening and closing, the friction between the valve disc and the sealing surface of the valve body is relatively small.
2. The opening height is generally 1/4 of the valve seat channel diameter, which is much smaller than that of gate valves.
3. There is usually only one sealing surface on the valve body and disc, which is convenient for maintenance.
4. Choose different materials for different media.

1. The installation position, height, inlet and outlet direction must meet the design requirements, and the connection should be firm and tight.
2. The handle of various manual valves installed on the insulation pipeline should not be downward.
3. Visual inspection must be carried out before installation of valves. For valves with working pressure greater than 1.0 MPa and a cut-off effect on the main pipe, strength and tightness tests should be carried out before installation; they can be used only after they are qualified.
4. The stem axis of the globe valve is perpendicular to the sealing surface of the valve seat.