Flojet Duplex 11 Two Piston Bypass Diaphragm Pump Flojet Duplex 11 Two Piston Bypass Diaphragm Pump

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The Flojet Duplex 11 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. Flojet Duplex 11 is available in various performance ranges, voltages and a choice of elastomers, making it easily adaptable to a diverse range of applications. Self-priming up to 2.4m. Can run dry without damage. Chemically resitant materials. Internal bypass standard. Built-in back flow preventer. Heavy duty ball bearing drive system. 

All Pumps Direct UK Suppliers of Flojet Duplex 11 2 Piston By-Pass Diaphragm Pumps 


Flojet D3121B1211AR Duplex 11 Bypass Diaphragm Pump 2.1 Bar 4.2 Lpm 12VFlojet D3121B1211AR Duplex 11 Bypass Diaphragm Pump 2.1 Bar 4.2 Lpm 12V
BUNA diaphragm
BUNA check valve 
No pressure switch
Flojet D3131V1311AR Duplex 11 Bypass Diaphragm Pump 3.4 Bar 5.7 Lpm 12VFlojet D3131V1311AR Duplex 11 Bypass Diaphragm Pump 3.4 Bar 5.7 Lpm 12V
Viton diaphragm
Viton check valve 
No pressure switch
Flojet D3134H1311AR Duplex 11 Bypass Diaphragm Pump 3.4 Bar 7.2 Lpm 12VFlojet D3134H1311AR Duplex 11 Bypass Diaphragm Pump 3.4 Bar 7.2 Lpm 12V
Santoprene diaphragm
EPDM check valve
No pressure switch
Flojet D3135B1311AR Duplex 11 Bypass Diaphragm Pump 3.4 Bar 7.2 Lpm 12VFlojet D3135B1311AR Duplex 11 Bypass Diaphragm Pump 3.4 Bar 7.2 Lpm 12V
BUNA diaphragm
BUNA check valve 
No pressure switch
Flojet D3135H1411AR Duplex 11 Bypass Diaphragm Pump 4.8 Bar 7.2 Lpm 12VFlojet D3135H1411AR Duplex 11 Bypass Diaphragm Pump 4.8 Bar 7.2 Lpm 12V
Santoprene diaphragm
EPDM check valve 
No pressure switch
Flojet D3221B1211AR Duplex 11 Bypass Diaphragm Pump 2.1 Bar 4.2 Lpm 24VFlojet D3221B1211AR Duplex 11 Bypass Diaphragm Pump 2.1 Bar 4.2 Lpm 24V
BUNA diaphragm
BUNA check valve
No pressure switch
Flojet D3231V1311AR Duplex 11 Bypass Diaphragm Pump 3.4 Bar 5.7 Lpm 24VFlojet D3231V1311AR Duplex 11 Bypass Diaphragm Pump 3.4 Bar 5.7 Lpm 24V
Viton diaphragm
Viton check valve
No pressure switch
Flojet D3235H1411AR Duplex 11 Bypass Diaphragm Pump 4.8 Bar 7.2 Lpm 24VFlojet D3235H1411AR Duplex 11 Bypass Diaphragm Pump 4.8 Bar 7.2 Lpm 24V
Santoprene diaphragm
EPDM check valve
No pressure switch
Flojet D3732H1311ARL Duplex 11 Bypass Diaphragm Pump 3.4 Bar 5.7 Lpm 230VFlojet D3732H1311ARL Duplex 11 Bypass Diaphragm Pump 3.4 Bar 5.7 Lpm 230V
Santoprene diaphragm
EPDM check valve
No pressure switch
Flojet D3735H1411ARL Duplex 11 Bypass Diaphragm Pump 4.8 Bar 7.2 Lpm 230VFlojet D3735H1411ARL Duplex 11 Bypass Diaphragm Pump 4.8 Bar 7.2 Lpm 230V
Santoprene diaphragm
EPDM check valve
No pressure switch