What is butterfly valve good for?

Butterfly valves are used where space is limited. Unlike gate valves, butterfly valves can be used for throttling or regulating flow as well as in the full open and fully closed position. The pressure loss through a butterfly valve is small in comparison with the gate valve.

Which is better ball valve or butterfly valve?

Butterfly valves typically operate at a lower pressure (less than 50 bar) and temperature (less than 250 degrees Celsius). Flow regulation: Both valve types can be used for on/off control and proportional control, but ball valves are typically used for proportional due to better flow regulation.

What are the disadvantages of butterfly valves?

One disadvantage of butterfly valves is that some portion of the disc is always presented to the flow, even when fully opened. The use of a butterfly valve therefore always results in a pressure switch across the valve, regardless of the setting.

What is the difference between check valve and butterfly valve?

Butterfly check valves have a seating arrangement similar to the seating arrangement of butterfly valves. Flow characteristics through these check valves are similar to the flow characteristics through butterfly valves. Consequently, butterfly check valves are quite frequently used in systems using butterfly valves.

What is butterfly valve not suitable for?

Butterfly valves do have limitations that make them unsuitable for flow control in some applications. These include a limited pressure drop capability compared to globe ball valves with greater potential for cavitation or flashing.

Why do butterfly valves fail?

Butterfly valves are mostly used in various industries such as oil and gas plant. The primary failure modes for valves are the valve leaks to environment through flanges, seals on the valve body, valve stem packing not properly protected, over tightened packing nuts, the valve cracks and leaks over the seat.

Why do we use ball valves?

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 butterfly valves bad?

In addition to advantages, there are slight disadvantages of butterfly valves like: A certain part of the disc always faces the flow, even when completely opened. The operation of a butterfly valve thus always leads to a pressure switch over the valve irrespective of the setting. It has a poor sealing function.

What is a butterfly check valve?

Butterfly Valves are used for isolating and regulating flow. The closing mechanism is a disc that allows for quick shut off, much like a ball valve. Butterfly valves are light in weight so they require less support.

Are plug valves better than ball valves?

Plug valves offer better performance in the term of cutting than ball valves, but that doesn’t show obviously. The sealing surface of the plug valve is much larger than the ball valve and supplies a better sealing effect, but a greater torque and small diameter.

Are butterfly valves good for control?

Butterfly valves are a great (and less expensive) alternative to globe and other control valves in applications where 1-2% accuracy is acceptable. A resilient seated butterfly valve is the most economical choice. If pressures and temperatures are not extreme, this type of valve should work just fine.

What kind of butterfly valves does Wouter Witzel make?

For this project Wouter Witzel has supplied several butterfly valves and actuators in different sizes. Wouter Witzel supplied more than 400 pcs EVFS and EVUS DN 100 – 2000 butterfly valves including manual, pneumatic and electric actuators.

Who are the people at Wouter Witzel eurovalve?

Fonnie. Everyone at Wouter Witzel is highly involved. Not just with our valves but especially with their purpose. Making sure we meet your demands and the highest level of quality. Our people make it happen. At every stage of the process. Fonnie. Everyone at Wouter Witzel is highly involved.

Where is Wouter Witzel eurovalve booth number A94?

Traditionally, the industrial water technology plays a significant role at ACHEMA as part of a resource-efficient production. We will present various products and of course our sales colleagues will be present to inform you about the range of products. We are looking forward to welcome you at our stand in Hall 8, booth number A94!

When is Wouter Witzel eurovalve exhibit at ACHEMA?

Visit our stand at ACHEMA in Frankfurt, Germany From 4th until 8th April we will exhibit at the ACHEMA in Frankfurt am Main, Germany. Achema 2022 is without a doubt a World forum of the process industry.