Why Ball valves are not used in steam service?

Ball valves, like all valves, are generally rated at a lower pressure for steam service than for liquid or dry gaseous service. Wet steam is damaging to all valve parts at the moment of opening and closing, or when throttling. This results in stem and ball corrosion, unless the valve materials are properly selected.

What is the difference between gate valve and ball valve?

The main difference is in the operation. A gate valve moves a solid disk up and down to open/close the orifice. A ball valve rotates a ball (the orifice) with a bore in it 90 degrees to open/close the valve.

Why are butterfly valves used?

A butterfly valve regulates flow by starting, slowing, or stopping media. The disk opens and closes with a low-torque rotation of 90 degrees and works for any compatible application. Because they cost less and are lighter weight, the butterfly valve is often preferred over other types of valves.

Do butterfly valves restrict flow?

Applications that require the control of flow from a body of water often use butterfly valves. If flow loss is not an issue, then butterfly valves are excellent for controlling flow and pressure.

Can ball valves be used for steam?

Ball valves are commonly used in steam, water, oil, gas, air, corrosive fluids. They can handle slurries and dusty dry fluids. Ball valves are not used with abrasive and fibrous materials as it poses risk of damage to the seat and plug surface.

Which type of valves is best used with steam?

By far the most widely used valve type for the automatic control of steam processes and applications is the globe valve. It is relatively easy to actuate, it is versatile, and has inherent characteristics well suited to the automatic control needs of steam.

What is a globe valve used for?

Globe valves, so-called because of their outside shape, are widely used in plant piping. They are suitable for manual and automatic operation. Unlike the gate valve, globe valve can be used for regulating flow or pressures as well as complete shutoff of flow.

Why are ball valves used?

Ball valves use a metal ball with a hole bored through the center, sandwiched between two seats to control flow. Used in many hydrocarbon process applications, ball valves are capable of throttling gases and vapors and are especially useful for low flow situations.

Why are gate valves used?

A gate valve is generally used to completely shut off fluid flow or, in the fully open position, provide full flow in a pipeline. Thus it is used either in the fully closed or fully open positions.

What are the advantages of butterfly valves?

Applications that require the control of flow from a body of water often use butterfly valves. If flow loss is not an issue, then butterfly valves are excellent for controlling flow and pressure. Another benefit of butterfly valves is that they are smaller than ball valves, which is useful for projects that need to minimize space.

What is a ball valve used for?

Ball valves are designed to control the flow of high pressure liquids and gases with minimal pressure drop. They are quick to open and close, and have a tight seal with low torque. Their ease of operation, repair, and versatility lends the ability to be used in a variety of locations. Brass Inline Check Valve, Series BICV

Can ball valves be used for throttling?

But while control valves can also be used for throttling, ball valves cannot. Because of their unique design and characteristics, control valves are well suited for applications that require precise flow control, frequent and wide throttling of media, and high pressure drops.

What are the different types of valves and their applications?

Types of Valves and Their Applications. 1 Aerosol Valves. Aerosol Valves are used for dispensing the contents of aerosol cans. They consist of two primary components, the housing and the stem. 2 Air Logic Valves. 3 Balancing Valves. 4 Ball Valves. 5 Blind Valves.