Flotronic is a world leading manufacturer of air-operated Double Diaphragm Pumps and inventor of the revolutionary ‘One-Nut’ design - a concept which has transformed the way Diaphragm pumps are being used throughout industry today. The ‘One-Nut’ Double Diaphragm Pump, unique to Flotronic, takes pump performance far beyond traditional style Double Diaphragm pumps. This fast maintenance concept literally turns the conventional pump inside out! Fluid passes between the diaphragms directly through the centre of the pump with air pressure operating on the outside. The pump is held together by one nut on the opposite side of the pump to the external air valve. This design allows in-line diaphragm replacement to be accomplished in less than 15 minutes, with a complete strip down and rebuild possible in less than 20 minutes. Using ‘One-Nut’ pumps, engineers can significantly reduce process downtime and provide vast savings in maintenance costs, without compromising on pump performance.

The following animation shows an air operated Double Diaphragm Pump working. You can easily see the major design difference from any of the older style AODP. The Flotronic 'One Nut' design means that the Process liquid stays within the middle of the pump with the process air working from the outside.

This design difference gives Major Benefits:

1. 70% less product hold up in the pump.
2. Diaphragms can be inspected / maintained while the pump remains in the Process Pipework. With a Diaphragm inspection being possible in less than 5 minutes.
3. Higher viscosity can be pumped with less shear on the product.
4. Pumps can be truly Cleaned in Place using an outside CIP rig at pressures up to 7 Bar.
5. Slimline range shown in the animation can be fully drained without manual intervention.
6. Sanitary 3A & EHEDG designs available.