Flojet 3501-503

Flojet 3501-503

FLOJET Industrial Triplex Low Pressure Series pumps are designed for a wide range of applications and are constructed from a selection of materials suitable for handling a broad range of chemicals. The Triplex Low Pressure diaphragm pumps are selfpriming and can run dry without harm. They are intended for intermittent duty cycles but can be run continuously for short periods of time. The higher the duty cycle,the shorter the expected life of the pump. Typical pump uses are liquid transfer, spraying, cooling, circulation, filtration and dispensing.

• Compact automatic demand pump
• Sealed pressure switch and motor
• Self-priming, pump can be located above supply tank
• Can run dry for extended periods of time without damage
• Flow rates to 2.0 GPM (7.6 l/min) and operating pressure to 50 psi (3.4 bar)
• Fitted with 4 Bar (60 PSI) Pressure Switch
• Internal bypass for smooth running even at low flows
• On/off rocker switch on pump body
• Viton valves, Santonprene diaphragm


Flow Rate                          7.8 lpm

Motor                                   Permanent magnet TENV (non-ventilated)

Pump Design                    Three Chamber

Voltage                                12 Vdc

Amp Draw                            8 amp

Pressure Switch Setting    2.0-4.1 bar 30-60 psi

Max. Operating Pressure   3.4 bar 50 psi

Max. Fluid Temperature      54 °C 130 °F

Self Priming                          Up  to 2.4m vertical height

Port(s)                                    3/8” NPTF

Wetted Parts                          Housing – Reinforced Polypropylene

Elastomers                            Santoprene®, Viton®

Weight                                    1.5 kg