Flojet Duplex 11 Diaphragm Demand Pumps. Flow 4.2 to 7.6 Lpm. Built-in pressure/demand switch. 12, 24, 115 & 230 Volt options. Viton, Santoprene, EPDM & Buna.Flojet Duplex 11 Diaphragm Bypass Pumps. Flow 4.2 to 7.2 Lpm. Internal bypass function. 12, 24, 115 & 230 Volt options. Viton, Santoprene, EPDM & Buna. 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.

Model D3131H5011AR
4.1 Bar switch setting
6.1 Lpm max flow
Internal bypass
12 Volt DC, 7.0 Amps
Santoprene diaphragm
EPDM check valve
3/8"NPTF ports
Self-priming, up to 2.4m
Integrated back flow preventer
Polypropylene pump housing