Series 4000 Metering Pump


One of the most compact designs for a pump that reaches almost 4,000 GPH and pressure up to 3,500PSI, AquFlow’s Series 4000 pump delights most users with its reliability and ease of operation. Equipped with a true hydraulically balanced diaphragm, it remains durable for years of continuous operation in the most challenging applications.

Its availability in 5 different liquid end material ensures you will have corrosion resistance to some of the nastiest chemicals used in the industry. The drive parts of the Series 3000 are submerged in a lubricant hydraulic oil bath to ensure minimal wear under the most stressful conditions. Modular design combines the Aluminum gear housing with pressure chambers and liquid end. The pump also has an internal relief valve to protect against over-pressurization and eventual rupture.


  1. This pump comes with 3 Ph, 230/460 VAC , TEFC Standard motor.
  2. The suction and discharge connection sizes depends on the model number of the pump, for more information please contact our sales team.
  3. The pump requires Flooded suction or 6-8 ft of NPSH.


** Please do contact us if you need help