Sanitary Butterfly Valves

As industries have evolved, different industries have come up with new ways to ensure that they can improve sanitation and hygiene levels in their work processes. One such method is using sanitary butterfly valves. These types of valves are used in food, beverage, pharmaceutical, and other related industries to control the flow of fluids. This article will discuss the different types of sanitary butterfly valves, their pros, and the applications they are best suited for.

What is Sanitary Butterfly Valves?

Sanitary butterfly valves are widely used in many industries for controlling the flow of fluids, gases, and liquid materials. These valves feature a round disc that attaches to a circular pipe or tube, allowing it to rotate along its axis. The disc has round bars, forged bars, hollow bars, and hexagonal shaped bars. This helps create an effective sealing process that ensures tight shutoff while preventing any pressurization or entrapment which could occur if foreign particles were present.

Different Types of Sanitary Butterfly Valves

Sanitary High-Performance Butterfly Valves

In high-pressure applications where the media can be corrosive or abrasive, sanitary high-performance butterfly valves are preferred. These offer high flow rates but require much torque to open and close the valve. Additionally, these valves require maintenance more frequently than other butterfly valves. The materials used to make sanitary high-performance butterfly valves include ductile iron, stainless steel, and nickel alloys. These valves are commonly used in the petrochemical, chemical, and refining industries.

Sanitary Butterfly Valves with an Aseptic Design

Generally, aseptic valves are used in high purity applications such as pharmaceutical and food industries. Sanitary butterfly valves with an aseptic design offer high purity levels for products since they do not have any gaskets or seals. The aseptic valves are manually operated and comprise a handle, disc, and liner. It’s important to note that these valves are expensive and must meet stringent standards such as those set by the FDA.

Semi-Lug Style Butterfly Valves

Semi-lug valves are suitable for various applications, such as climates with extreme temperature fluctuations. These valves have a reduced torque requirement for opening and closing and can be used in systems that transport gas or liquid media. Semi-lug style butterfly valves are typically used in industrial and water treatment applications.

Sanitary Zero Offset Butterfly Valves

Sanitary zero offset butterfly valves are suitable for applications where there is a need for a bubble-tight seal. The valve operates using a metal to metal seal, minimizing the leaching of fluids. The valves are compact in design and weigh less than other valves. These are best suited for the food, dairy, and chemical industries.

Solenoid Operated Sanitary Butterfly Valves

Solenoid-operated sanitary butterfly valves work by using electric power to control the opening and closing of the valve. These valves are suitable for applications where remote control is necessary, such as in cryogenic applications. Additionally, these valves are commonly used in the food, beverage, and pharmaceutical industries.


Sanitary butterfly valves are essential in ensuring that applications in different industries are safe, efficient, and hygienic. This article discusses the different types of sanitary butterfly valves and the applications they are best suited for. It’s essential to consider your application’s needs when choosing the type of sanitary butterfly valves to purchase. Consulting a professional can help you choose the best valve for your application and ensure your system operates safely and efficiently.

More Posts

© 2021 STILONN Valves & Controls Pvt Ltd