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The Tale of Two Valves

Inventive Ways Our Customers Use Valves

“I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success…such emotions make a man forget food, sleep, friends, love, everything.” ~ Nikola Tesla

We admit that our customers are brilliant. Often when they have a question, challenge, or design concern they call us and we figure out a solution together. But sometimes we hear about smart ways to use our technology after the fact.

Here are two very useful applications from the field.

How Do You Re-circulate Product in The Tank?

The Challenge: Re-circulate product in the tank while maintaining CIP/SIP and avoiding pockets or dead zones.

The Situation: A solution with small quantities of particulates that must be uniformly distributed.

The Solution: The inventive engineer used two flush diaphragm tank valves. One tank valve was used as the standard tank drain. The second valve, the re-circulating tank valve, was placed near the tank knuckle (see the diagram). To start the recycle loop, the technician opened the valve and then pumped the product through piping so it reentered at the top of the tank.

Why the Radial-Diaphragm Tank-Bottom Valve?

The engineer selected our Tank-Bottom Valve for two reasons:

  1. Flush Mount: The flush mount of the ASEPCO Radial-Diaphragm™ Tank-Bottom Valve eliminates pockets or dead zones in the tank.
  2. CIP/SIP: The design of our tank valve makes SIP/CIP easy. By simply adding a secondary (Sterillite™) valve to the tank outlet valve body, SIP/CIP can be performed cleanly and quickly. In addition to making SIP/CIP easy, it doesn’t add any dead leg to your system.

How Can You Avoid Foaming and Contamination?

The Challenge: Avoid foaming that would damage a sensitive protein product and avoid the dip tube that had caused contamination in the past.

The Solution: After checking his alternatives, this engineer realized the best solution was to mount two tank valves, the standard output valve, and a smaller ASEPCO tank valve closer to the knuckle of the tank.

By setting up his 10 tanks this way, he was able to fill the tank from the bottom, eliminating foaming (see the diagram)!

Here’s the flow.

First, valve B2 (at the steam port of valve B1) is opened, allowing steam to flow through the valve and piping between the tanks sterilizing it before the product transfer.

Second, the product flows from the original tank through the piping and enters this tank through valve B1. This fills the tank from the bottom, avoiding foam and a potential source of contamination!

And finally, when the process is complete, valve B3 is opened for routine draining.

Why the Radial-Diaphragm Tank-Bottom Valve?

Two reasons:

  1. Avoid contamination: The steam cleaning of the valves and piping removes most of the concern for contamination. The Radial-Diaphragm Tank-Bottom Valve has a flush seat that allows for thorough steam cleaning.
  2. Flow control: The second tank valve allows for flow control and bottom filling. This allows the technician to effectively manage the flow and make sure there is no foaming.

Have you gone “off-label” with one of our products? We’d like to hear from you.

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