The Duplex II series of pumps incorporate the best technology and the features developed by 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 vaccuum. 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.

The D3735E7011A is fitted with EPDM checkvalves and diaphragms and is fitted with a 100 PSI pressure switch. It has a capacity of 7.6 LPM (open flow) and has a wide range of applications including carpet cleaning

This model replaces the former Flojet 2130-232.


Self priming up to 8 feet (2.4m)
• Can run dry without damage
• Chemical resistant material
• Internal bypass standard
• Built-in back flow preventer
• Heavy duty ball bearing drive system

Pump Design:      Positive Displacement two piston design, demand pump

Weight:                   2 kgs

Flow Rate:              7.6 l/min – High pressure Models
Max pressure:       Up to 100 psi (6.9 bar)

Port(s):                    3/8″ NPT Female

Motor:                      Permanent Magnet with solid state rectifier

Voltage Options:    230 V AC

Cycles:                     50/60 Hz

Dry Vacuum:             Up to 8 feet (2.4m)

Pressure Switch:    100 psi (6.9 bar)

Diaphragm:                  Polypropylene, Santoprene