Pneumatic diaphragm alarm unit

In case of a diaphragm break, the unit will stop the pump and turn on the horn.

Leaking liquid in case of a diaphragm break, will remain in the chamber between the wetted diaphragm and the backup diaphragm. This system grants for a high level of safety in plants where liquid is never allowed to leak.

This system will immediately alarm and shut of the pump at an eventual diaphragm break. It ensures that no liquid will leak to the environment or to the air system of the pump - a perfect system where you require a high level of safety.

The system consists of a backup diaphragm pump (TB), and a control and alarm system. Under normal operation, the chamber between the backup diaphragm and the wetted diaphragm is set to vacuum by the control system. If any of the diaphragms would break, the pressure will rise in the vacuum chamber. The control system will then switch of the pump and turn on the horn. This system is allowed for use also in explosion hazardous areas, since only pneumatic components are used.

Technical data
Size of control and alarm unit (mm)	200x200x130
For pump models	All Tapflo pumps from size 50 (1/2") and bigger
Material of junction box, protection	ABS plastic (IP 55 or IP 65) or stainless steel AISI 316 (IP 44)


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