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Forged steel flanged globe valve is a kind of valve commonly used in industrial piping system. It has many characteristics and wide application range. The following is an introduction to the forged steel flanged globe valve in Chinese:

Structure and Features: Forged steel flanged globe valves usually have full-diameter or reduced-diameter open rod support design, self-centering platen press sleeve construction, and bolted wound gasket sealed valve covers. The body and bonnet are manufactured with high quality forgings and are precision machined to ensure high performance. The stem has a ground treatment to improve tightness and durability. The valve design includes a self-aligning two-piece packing box and a backseat function for in-line refilling of the packing box.

Technical parameters: Forged steel flanged globe valves are suitable for a variety of pressure and temperature ranges, usually for small diameter pipes. They are available in three valve cover designs: bolted, welded and pressure self-sealing. A variety of body materials, including A105 forged carbon steel, 304/304L/316/316L stainless steel and alloy steel, suitable for different operating conditions and media.

Application: Forged steel flanged globe valves are widely used in various working conditions in petroleum, chemical, pharmaceutical, fertilizer and electric power industries. They are suitable for controlling the flow of various media such as water, oil, steam and acidic media.

Working principle: The closing part of the globe valve (valve disc) moves along the center line of the valve seat, and the movement of the valve disc is proportional to the change of the valve seat port, which is suitable for flow regulation. Once the disc is in the open state, there is no contact between the seat and the disc sealing surface, reducing mechanical wear and facilitating maintenance.

Advantages and limitations: The advantages of forged steel flanged globe valves include simple structure, convenient manufacturing and maintenance, small working stroke, short opening and closing time, and good sealing. However, they also have limitations, such as large fluid resistance, large force required when opening and closing, not suitable for media with particles, large viscosity or easy coking, poor adjustment performance.

Models and specifications: Forged steel flanged globe valves are available in a variety of models and specifications, including different materials and pressure classes, such as the JD41H/Y series, as well as API 602 compliant designs.

Installation and operation: The installation of forged steel flanged globe valves is relatively simple and usually connected with flanges. During operation, the hand wheel rotates clockwise to make the stem move downward and the valve flap lowering sealing surface close, thus cutting off the path; Turn counterclockwise to open the valve.

When selecting a forged steel flanged globe valve, it is necessary to consider its performance and requirements in a specific application to ensure the safety and efficiency of the system.