> How to select a Top Line Sanitary Butterfly Valve discussion with Brad Gregg (BPE Committee Member & Top Line Sales Engineer)

Sanitary butterfly valves are a good alternative to more expensive valves for use with fluids that are not intended to be used on USDA dairy products. Due to the butterfly valve’s simple design it’s easy to maintain with minimal parts involved during servicing. Sanitary butterfly valves are typically found in applications that have a low internal line pressure (less than 145 PSIG). They can be utilized as either shut-off or throttling valves depending on the controls or top works applied to the valve itself. Top Line offers three different types of sanitary butterfly valves to better service industry specific applications.

TOP-FLO® Value

The Value type butterfly valve is a low cost, 2-piece manual valve alternative, specifically for the micro or craft brewery industry and also for smaller wine production facilities. The multi-position thermoplastic/stainless steel trigger style handle is well suited for both shut-off and manual throttling capability.

TOP-FLO® Standard

The Standard type butterfly valve is an option oriented, mid-range priced, 2 piece valve that is well suited for most fluid process applications. The key to the standard type valve is its ability to be customizable with a full range of both manual handle and automation options.

Premium – Definox

The Premium type butterfly valve is a heavy duty style valve that is available in both standard 2-piece and 3-piece “between flange” type. The 3-piece type allows for even greater ease during maintenance, and is more forgiving with slight misalignment issued during installation. Multiple manual handle options allow the user to control the valve in several ways. The automated version comes standard with a heavy duty, long life, vertical stainless steel pneumatic actuator.

When properly selecting a sanitary butterfly valve, several points should be considered.

  • What is the fluid? This will assist in determining the chemical resistance of the seal material required.
  • What is the fluid temperature and internal line pressure? Since sanitary butterfly valves have low seat holding pressure, this information will assist you in determining if a sanitary butterfly valve is the right option for your application.
  • What is the required operation of the valve – manual or automated? If the valve is manual, all three butterfly types may work for your application. If the valve is automated, your choice is limited to Standard and Premium types.
  • Is the on/off cycle frequency of the automated style valve high? Consideration should be made to select either the Standard type with rack & pinion actuator or the Premium type with heavy duty pneumatic actuator.

Not sure which butterfly valve best suits your application?

Our sales and technical staff can help!

Contact us Today! Download the butterfly brochure

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