Butterfly valves are quarter-turn rotary motion valves which play the role of throttling valves in order to regulate media flow through a system. They can be used with several different media and are capable of offering a range of perks.

They are found in a wide range of industrial applications such as Oil & Gas, medical and food processing and more. For this year’s ADIPEC 2022, the Dutco Tennant LLC is exhibiting their high performance Butterfly Valves along with other range of products. Visitors can catch live product demonstrations and other fun activities at the exhibit which will begin from 31st October 2022.

Before you go and explore the exhibit, here’s a quick selection guide for butterfly valves that you should go through.

Classification for Butterfly Valves

Generally, industrial valves are classified in a variety of ways which also includes based on their functions and control capabilities. Butterfly valves fall in the category of quarter-turn valves. They are designed to primarily perform the function of open/close media flow and control their flow within the system installed.

Function 

Butterfly valves can be used for delivering on/off service or throttling. When a valve modulates or throttles the media flow it is actually regulating the capacity and speed of media flow through the valve.

A butterfly valve service the purpose of on/off services is usually in line size and needs the minimal pressure drop available in the open position.

In a fluid handling system, the role of control valves is pretty significant. Choosing a butterfly valve for performing this function needs more calculations and enables for system requirements. 

The operator must be able to detect the maximum flow requirement, which is equivalent to the design flow, along with permissible maximum pressure drop, that is obtained by the consulting engineer.

Method of Control

The shutting element of a butterfly valve includes a metal circular disc or vane that turns on an axis at right angles to the flow direction in the pipe. When it is rotated on a shaft, the disc tends to seal against seats in the valve body. 

The thin disc remains in the passageway always but it provides only minimal flow resistance. Butterfly valves deliver a rotary stem movement of 90 degrees or less, coming in a compact design. The operational time of the valve is short because the valving element is quarter-turned rotated to open or shut the passageway.

Butterfly Valves are able to handle a range of media because of the availability of materials and disc construction for the valves. They are capable of dealing with gas where the valves can seal tightly up to a minimum pre-determined leakage rate at rated operating pressures and temperatures.

Butterfly Valves can also handle liquids and solids. To know more potential of butterfly valves make sure to attend the Dutco Tennant LLC exhibit at the ADIPEC 2022.