Guardian System: Frequently Asked Questions

What is the Guardian System?

Tapflo’s Guardian System is a revolutionary Diaphragm Pump accessory that allows the end user to run their pump in an efficient manor, whilst protecting the pump from dry running, dead heading and breaching of the diaphragms.

Guardian System for Diaphragm Pump

How does a Guardian System work?

The Guardian System works by monitoring fluid pressure, if the pressure rises or falls above a set point, the Guardian will change the pump’s output. For example, if the Guardian is set to detect rising pressure it means that the pump will have dead head protection. As the pump is dead headed, caused by a closed valve or blockage on the discharge line, the Guardian will detect the rising pressure and shut the pump off!

Why do I need a Guardian System?

There are a few reasons you might need a Guardian System, the obvious ones being to protect your pump from dry running, dead heading and diaphragm breaching! Below is an ideal scenario of a Guardian System protecting your pump environment.

Say, for example, you are pumping a very harsh product that could cause serious harm to an end user. In cases like this you need the process line to be as safe as possible. When a standard Diaphragm Pump has a breach in the diaphragms, the media will escape the wet side of the pump and travel into the air side (centre section) of the pump and will have nowhere to go except out of the air exhaust. This means that the media will be out in the open and could come into contact with the end user – a big no!

Barrier Diaphragm Pump

The Barrier Protection Pump in conjunction with the Guardian System will mean the pump is shut off immediately if a diaphragm breaches, insuring no media escapes through the air exhaust.

Our Barrier Pumps are available in both our PE/PTFE and Metal Series’.

What pumps in our range can a Guardian be installed with?

Tapflo UK’s full range of Diaphragm Pumps will work with the Guardian System!

Are there any applications a Guardian System can’t be used with?

Not really! As the Guardian System is ATEX certified, there aren’t many limitations on where it can be used!

Common Applications and uses for a Guardian System

  • - If you’re pumping an expensive product and don’t want to waste any should a diaphragm rupture
  • - If you’re pumping a harsh or dangerous product and don’t want to harm anyone should the diaphragm rupture
  • - When you want to protect the pump should there be a blockage in the discharge line
  • - If you want to save on energy and not create unnecessary ware on the moving spares if the pump was to dry run

Case Study

A long-standing customer of Tapflo UK’s was pumping an undisclosed product that, when entered the atmosphere, created flames. They were using a standard pump for several years and one day a diaphragm ruptured, meaning the fluid escaped the pump into the atmosphere via the air exhaust. This resulted in large flames exiting the exhaust of the pump, which is obviously extremely dangerous and unacceptable.

Pumping solution offered:

Pump Type: TXB420 STT barrier pump with Guardian System

Materials: Stainless steel PTFE

Connection Size: 2”

The pumping solution was provided in 2010 and is now a standard across all sites. Tapflo’s Barrier Protection means that should the first set of diaphragms fail, a back up set with the guardian system will ensure the media can never escape the pump!

If you require a Guardian System for your pump installation, get in contact with Tapflo UK today.

Call: 023 8025 2325

Email: [email protected]

Alternatively, you can use the live chat in the bottom right hand corner of our website.

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