Middleeast valve is the greatest Pressure seal globe valve supplier in Saudi Arabia . We supply to cities like Baghdad, Erbil, Izmir, and Ankara.
Pressure seal globe valves play a crucial role in various industrial applications, providing effective control of fluid flow in high-pressure and high-temperature environments.
Pressure seal globe valves are designed to handle extreme conditions, making them ideal for applications involving high pressure and temperature. The valve’s construction consists of key components that contribute to its robust performance:
Body and Bonnet:
The body and bonnet of pressure seal globe valves are typically forged or cast from high-quality materials such as carbon steel, alloy steel, or stainless steel. This ensures the valve’s ability to withstand the demanding conditions encountered in industries like power generation, petrochemicals, and oil and gas.
Disc and Seat:
The disc, also known as the plug, is a vital component responsible for controlling the flow of fluids. It moves perpendicular to the flow direction, creating a seal against the valve seat when closed. Both the disc and seat are carefully designed and machined to provide a tight seal, preventing leakage even at high pressures.
Stem and Actuation:
The stem connects the operator (handwheel, gear, or actuator) to the disc, facilitating the opening and closing of the valve. The stem is guided to ensure smooth operation and minimize friction. Actuation options range from manual handwheels to automated actuators, offering flexibility based on the specific needs of the application.
The working principle of a globe valve involves the movement of the plug (disc) in relation to the seat to control the flow of fluid. Here’s a step-by-step explanation of how it works:
- Closed Position: In the closed position, the plug is pressed against the seat by the force of the stem (connected to the handwheel or actuator). This prevents fluid from flowing through the valve.
- Opening the Valve: Turning the handwheel or actuator causes the stem to move upwards, lifting the plug away from the seat. This creates an opening through which the fluid can pass.
- Flow Control: By adjusting the position of the plug, the operator can control the size of the opening, thus regulating the flow rate of the fluid. Partially lifting the plug allows for partial flow control, while lifting it fully permits maximum flow.
- Closing the Valve: Turning the handwheel or actuator in the opposite direction lowers the plug back onto the seat, stopping the flow of fluid.
What Is a Globe Valve Used For?
Globe valves are widely used in applications that require precise throttling and flow regulation. Industries such as oil and gas, power plants, and water treatment facilities use these valves to control the movement of liquids, gases, and steam. Unlike other types of valves, a globe valve provides excellent control over flow rates, making it suitable for operations where gradual opening or closing is necessary.
Difference Between Globe Valve and Gate Valve
While both globe valves and gate valves help control flow, they function in different ways.
Flow Control: A globe valve is designed for throttling and regulating fluid, whereas a gate valve primarily acts as an on/off switch. Gate valves are not ideal for flow regulation because they can experience wear when left partially open.
Design and Movement: Globe valves have a stem that moves up and down in a straight line, allowing gradual control. Gate valves, on the other hand, use a lifting gate that moves vertically to allow or block flow.
Pressure Drop: Due to its internal structure, a globe valve has a higher pressure drop compared to a gate valve. This is because the fluid path is not straight and needs to change direction as it moves through the valve.
Middleeast valve is the largest Pressure seal globe valve supplier in Saudi Arabia. Our manufacturing process is meticulously aligned with prevailing industrial standards, underscoring our unwavering commitment to upholding the highest quality benchmarks for these valves.
Is a Globe Valve Full Port?
No, a standard globe valve is not a full-port valve. Full-port valves have an internal diameter equal to that of the pipeline, ensuring minimal flow restriction. Globe valves, however, have a seat that reduces the flow path, which can cause pressure loss. If maintaining flow rate is crucial, other valve types like ball valves might be more suitable.
Is a Globe Valve Linear or Rotary?
Globe valves operate with linear motion, meaning the stem moves in a straight line when opening or closing the valve. This linear movement allows precise control over flow rates, which is why globe valves are commonly used in applications requiring fine adjustments.
Advantages of Pressure seal globe valve:
- It is designed to handle high pressure and high temperature applications
- It ensures a tight seal, preventing leakage of fluid through the valve
- Easy to operate
- It ensures a long lifespan for the valve
Applications of Pressure seal globe valve:
- Power generation
- Oil and gas
- Chemical processing
- Pulp and paper
Parts of Pressure seal globe valve:
- Body
- Disc
- Stem
- Handle
- Seat
- Gasket
- Bonnet
- Yoke
Description:
Body materials: Carbon steel, A105, F304, F316, F304L, F316L, F51, F53, F11, F22.
Class: 150 – 2500.
Size: 1/2”-48”.
Ends: Socket weld, butt weld, flanged, threaded.
Operation: handwheel operated, gear operated, electric actuated, pneumatic actuated.
Visit us: https://www.middleeastvalve.com/product-category/pressure-seal-globe-valve/