20inch 150LB Carbon Steel Swivel Plug Disc Globe Valve - China Suppliers & Factory for High-Pressure Applications
Products Specification
| Type | Globe Valve |
| Size | 20” |
| Pressure | 150LB |
| Connection | Flange End |
| Operation | Bevel Gear Box |
| Body Material | WB |
| Design Standard | BS1873 |
| FTF Dimension Standard | ASME B16.10 |
| Flange Dimension Standard | ASME B16.5 |
| Test Standard | API598 |
| Application | W.O.G |
Features
Globe valves use a linear motion to open and close. The valve's disc or plug moves up and down on the valve stem, which controls the flow of fluid through the valve.
Globe valves are excellent for throttling and controlling flow. The design allows for precise flow regulation, making them ideal for applications where accurate flow control is necessary.
The flow path in a globe valve is typically S-shaped, with the fluid entering the valve body, passing through the valve seat, and exiting on the opposite side. This design creates a pressure drop, which helps in flow regulation.
Globe valves come in various body designs, including T-pattern (most common, changes direction), Y-pattern (straighter path, reduced drop), and angle pattern (90-degree flow change).
The disc (or plug) can be designed in different shapes, such as flat, parabolic, or needle-like, depending on the desired flow characteristics. The seat can be either integral or renewable.
Globe valves provide good sealing capabilities. They are effective in providing a bubble-tight shut-off when fully closed, depending on the design and material.
Globe valves can be operated manually using a handwheel or can be automated with electric, pneumatic, or hydraulic actuators, allowing integration into various control systems.
Globe valves are designed to withstand high pressures and temperatures, making them suitable for steam systems, high-temperature fluids, and other demanding applications.
Made from a variety of materials, including cast iron, carbon steel, stainless steel, brass, bronze, and various alloys, allowing compatibility with different corrosive or abrasive media.
Commonly used in applications where flow control, throttling, or frequent operation is required, such as HVAC systems, water treatment, chemical processing, and power generation.
One of the downsides of globe valves is their relatively high pressure drop compared to other valve types, such as gate or ball valves, due to the tortuous flow path.
Globe valves are relatively easy to maintain and repair. The seat and disc can be accessed and replaced without removing the valve from the pipeline.
Application
Ideal for applications requiring precise flow control and throttling. They can be adjusted to various open positions to regulate fluid flow rates.
Commonly used in steam applications due to their ability to handle high temperatures and pressures, such as in heating systems and steam turbines.
Used to regulate the flow of treated water and chemicals in plants and municipal water distribution systems for pressure and flow control.
Controls the flow of hot water, chilled water, and steam to maintain desired temperatures and flow rates in HVAC circuits.
Suitable for high-pressure applications to control the flow of crude oil, refined products, natural gas, and a wide range of fluids.
Used for controlling the flow of various chemicals, including corrosive and hazardous substances, under wide temperature ranges.
Provides precise control over boiler feedwater, cooling systems, and fuel supply lines critical for efficient power generation.
Controls the flow of process water, steam, and cleaning agents while meeting sanitary standards and precise flow control requirements.
Used for controlling the flow of water, fuel, and other fluids on ships and offshore platforms, suitable for both seawater and freshwater.
Applied in systems where extreme pressures and temperatures are present, such as industrial boilers, heat exchangers, and autoclaves.
Used to control the flow of gases in vacuum systems, offering reliable sealing for low-pressure applications.
Designed to handle thermal stresses and control the flow of extremely low-temperature fluids like liquid nitrogen and liquid oxygen.
Provides precise control of fuel flow within pipelines, refineries, or fuel distribution networks.
Often utilized in vent and drain systems to control the safe release of gases or liquids from vessels and pipelines.
Technical Drawing
Frequently Asked Questions
This globe valve is designed in accordance with the BS1873 standard. Its face-to-face (FTF) dimensions conform to ASME B16.10, and flange dimensions comply with ASME B16.5. It is fully tested under the API598 standard.
Globe valves utilize a linear motion design where the disc or plug moves directly up and down relative to the seat. This linear movement allows for precise, gradual adjustments to the opening size, giving operators highly accurate flow regulation and throttling capabilities.
The valve has a pressure rating of 150LB and is designed with a Flange End connection, making it suitable for standard industrial piping systems requiring robust and leak-proof connections.
The primary drawback of a globe valve is its relatively high pressure drop. This occurs because the fluid must travel through an S-shaped path inside the valve body, creating more resistance compared to straight-through valves like gate or ball valves.
Yes. While this specific model is configured with a Bevel Gear Box for manual operation, globe valves in general can be easily automated using electric, pneumatic, or hydraulic actuators to integrate seamlessly into control systems.