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The Air Operated Diaphragm Pump Guardian System is a protection device, designed by Tapflo UK, to protect an Air Operated Double Diaphragm Pump (AODD) from operating in an inefficient manner that uses unnecessary energy and reduces the life of the internals. It also offers the added benefit of providing greater safety to applications of high risk, ensuring the longevity of your installation.
The Air Operated Diaphragm Guardian System monitors fluid pressure, changing its output if the monitored pressure rises above or falls below the set point of the Guardian (dependant on configuration), controlling the associated pump according to the following applications:
Each application, as stated above, is available by fitting a Tapflo Guardian to your pump. This is available before delivery to your site as a preassembled and preprogrammed system. Alternatively, you can fit this yourself on site.
Please be aware there are additional parts involved in creating these Diaphragm Pump Control Systems. Speak to the Sales Team to discuss the required parts.
The Air Operated Diaphragm Guardian System monitors the fluid discharge pressure of the pump, stopping it if the pressure falls below the setpoint, caused by a lack of media on the suction causing air to be ingested into the pump. (PDRN System)
The Air Operated Diaphragm Guardian System monitors the fluid discharge pressure of the pump, stopping it if the pressure rises to the setpoint, caused by a closed valve or overpressure in the discharge line. (PDHS System)
The Air Operated Diaphragm Guardian System monitors the fluid discharge pressure of the pump, stopping it if the pressure rises to the setpoint, caused by a closed valve or overpressure in the discharge line. When the pressure falls below the set pressure, the pump automatically restarts. (PDHR System)
The Electronic Dry Run & Dead Head Protection System guarantees reliable, effective and safe operation of your pump whilst reducing the consumption of compressed air, meaning lower operating costs!
Pump switch-off thresholds can be set up to 0.05 bar, allowing incredibly accurate setting and protection parameters. (EDRH System)
Benefits of using the EDRH Protection System:
Main features of the EDRH Protection Device:
Barrier pumps (TB) have additional diaphragms used to back up the primary diaphragms. In case of a breach, the liquid remains inside the pump instead of leaking out through the air exhaust. The Guardian monitors the pressure between the primary and secondary diaphragms, stopping the pump if the pressure increases above the set point. (PDFM System)
This system is to be used in conjunction with the Diaphragm Alarm System, which will immediately alarm and shut off the pump at an eventual diaphragm break. It ensures that no liquid will leak into the environment or to the air system of the pump – a perfect system where you require a high level of safety.
How the Barrier Pump monitoring & control system works:
The system consists of a backup diaphragm pump (TB) and a control and alarm system. Under regular operation, the chamber between the backup diaphragm and the wetted diaphragm is set to vacuum by the control system. If any diaphragms break, the pressure will rise in the vacuum chamber. The control system will then switch off the pump and turn on the horn. This system is allowed for use also in explosion hazardous areas since only pneumatic components are used.
The panel is 200 x 200 x 130 mm and is available for all Tapflo AODD pumps from 2” and up and can be supplied in either ABS Plastic (IP55 or 65) and Stainless Steel AISI 316 (IP44).
The Guardian System is a fully pneumatic, chemically inert pressure trip with an integral latching output control valve. The system includes the following features:
|Ambient Temperature ºC
|-20 to 40
|Product Temperature ºC
|-20 to 110
|Air Pressure, Bar (G)
|Product Pressure, Bar (G)
|96 x 71 x 161 mm
Guardian Units, when bought on their own, need at least a Blocking Valve and can have TPUK-PA Audible Alarm, TPUK-PAM Audible Alarm w/ Mute & TPUK-VFC Alarm VFC (Volt Free Contact Output) as optional extras.
"Amazing service. Choosing the right equipment can be difficult and the team at Tapflo really go out of their way to understand your needs in order to recommend the right product. Their customer service and ongoing support is fantastic."
"Excellent customer service and set up of our brand new chemical pump. Steve was able to provide us with a chemical pump to meet our very bespoke needs. Can't recommend TapFlo highly enough."
"Great company to deal with, Always helpful and willing to give advice when asked. Very supportive and willing to go the extra mile. Would always recommend them to others."
"Luke and the team at Tapflo go above & beyond to ensure a 5* service. Tapflo have worked on multiple projects which have had great results and have also worked wonders when supplying equipment at short notice. I would recommend Tapflo as their enthusiasm and service is second to none."
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Our friendly team at Tapflo UK would be more than happy to assist you further with any pump solutions, delivery information or questions you have. If you need additional support on-site, you can speak to a member of the team today to organise a site visit.
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