Stainless Steel Globe Valve Factory

Is globe valve a normally close valve

A globe valve is not inherently a normally closed valve; its state (open or closed) depends on its design, configuration, and how it is operated. Globe valves are commonly used in various industries to regulate the flow of fluids within a pipeline. They have a disc or plug element that moves perpendicular to the flow of the fluid, which allows for precise control of the flow rate.

Globe valves can come in different forms, such as:

Normally Closed (NC) Globe Valve: In some applications, a globe valve might be designed to be normally closed. This means that when no external force or energy is applied, the valve remains in the closed position. When activated or energized, it opens to allow fluid flow. api 6d ball valve

Normally Open (NO) Globe Valve: Conversely, there are normally open globe valves as well. These valves are designed to be in an open position when no external force is applied. They close when activated.

Double-Acting Globe Valve: There are also double-acting globe valves, which require external force or energy to both open and close. These valves are used when the process requires controlled modulation and precise adjustment of the flow.

Single-Acting Globe Valve: Single-acting globe valves are designed to require external force or energy to only open or close. Once they are manually opened or closed, they will stay in that position until acted upon again. forged ball valve

It's important to note that the terms "normally closed" and "normally open" refer to the valve's resting state when no external force is applied. The actual operation of the valve, whether it's opened or closed, can be controlled by mechanical, pneumatic, hydraulic, or electrical actuators. carbon steel gate valves

So, whether a globe valve is normally closed or open depends on its specific design and the intended application.

Is globe valve bidirectional

Yes, globe valves are bidirectional valves. This means that they can control the flow of fluid in both directions, whether it's from the inlet to the outlet or from the outlet to the inlet. Globe valves have a disc or plug that can move perpendicular to the flow path, allowing them to regulate or stop the flow of fluid. This design enables bidirectional flow control, making globe valves suitable for a variety of applications where control and shutoff in both directions are required. high temperature gate valves

What is a manual globe valve

A manual globe valve is a type of valve used to control the flow of fluid (liquid or gas) through a pipeline or system. It is named "globe valve" due to the spherical shape of its body. The key feature of a globe valve is its disc, which moves perpendicular to the axis of flow, allowing for precise control of the flow rate. This design offers a fine degree of throttling capability, making globe valves suitable for applications that require accurate flow regulation, low temperature ball valves.

Here's how a manual globe valve typically works:

Body: The valve has a body with inlet and outlet ports that allow fluid to flow through. The body contains a seating area where the valve disc will make contact to stop or regulate the flow.

Disc (Plug): The disc or plug of the valve is typically round and flat, and it is connected to a stem that extends outside the valve body. The stem is used to control the movement of the disc.

Seat: The valve body has an internal seat where the disc makes contact when it's moved downward. This contact creates a seal that stops or restricts the flow of fluid.

Stem and Handwheel: The stem connects the handwheel (the external control mechanism) to the disc. When the handwheel is turned, the stem rotates, causing the disc to move up or down, altering the size of the opening between the disc and the seat. This, in turn, controls the flow of fluid.

Flow Control: By turning the handwheel, the user can precisely adjust the position of the disc. If the disc is fully lifted away from the seat, the valve is fully open, allowing maximum flow. If the disc is pressed against the seat, the valve is closed, stopping the flow. The degree to which the disc is raised or lowered determines the flow rate.

Manual globe valves are commonly used in various industries, such as oil and gas, petrochemicals, power generation, water treatment, and more, where accurate control of fluid flow is essential. They are particularly well-suited for applications where flow needs to be throttled or modulated, as they provide fine control over the amount of fluid passing through the valve. However, due to the need for manual operation, they might not be ideal for systems requiring frequent adjustments or for installations in remote or inaccessible locations, api602 forged gate valve.