The Duplex II series of pumps incorporate the best technology and features developed by ITT Flojet. everything from the back flow preventer, check valves, bearings and diaphragm assembly to the motor, have been designed to make this truly the most advanced and reliable diaphragm pump available. higher efficiency of the pump is evident in the longer life of the motor pump unit. The new diaphragm design combined with the new valves, makes the pump capable of pulling higher dry vacuum. Duplex II is available in various performance ranges, voltages and with a choice of elastomers, making it easily adaptable to a diverse range of applications.

Models equipped with an external bypass system are designed to pump at high pressures while at low or high flow rates. Models equipped with a bypass only will continue to run until the power is manually turned off.

The Duplex II pumps are not recommended for continuous duty service due to limited motor brush life. Operation at lower pressures and temperatures, however, will extend overall pump service life.

Features 

• Self-priming up to 2.4 m (8 feet) " Can run dry without damage
• Chemically resistant materials
• Internal bypass standard
• Built-in back flow preventer
• Heavy duty ball bearing drive system " UL, CSA and CE models available