Electric Driven Chemical Injection Pump

Product Details

The Bruin BR4300 Chemical Injector Pump is a gear driven, positive displacement, plunger type pump that utilizes a rotary electric or hydraulic power source. An integral worm gear drive, available in three standard gear ratios, along with six available plunger sizes, provides a wide selection of volumes up to 1232 Litres per day with a 1” head and discharge pressures up to 5000 psig with a 3/16” head. Each pump is capable of supporting a single or double head configuration with the ability to link multiple pumps together, allowing up to eight heads to be driven by a common motor. The BR4300 comes standard with a micrometer type stroke adjustment for each head allowing independent adjustment.


  • Adjustable stroke length (0 – 100%), plunger sizes (3/16”, 1/4”, 3/8”, 1/2”, 3/4” & 1”) and gear ratios (100:1, 50:1, 25:1) provide an adjustable volume output up to 1232 Litres per day per head.
  • Single head, double head and multiplex configurations available. Supports different sized plungers on a single gearbox.
  • Stroke length adjustable during operation.
  • 12V, 115V and 230V XP CSA electric motors and hydraulic drive motor configuration available.
  • Clear acrylic lid for easy inspection of pump internals.
  • Designed for ease of operation and maintenance under varied pumping applications.
  • Conversion for handling of various chemicals is easily accomplished by the change out of the packing set and fluid end seals.
Type Electric or Hydraulic Driven
Volume 0 – 1232 Litres / Day per Head
0 – 271 Imp. Gal. / Day per Head
0 – 325 US. Gal. / Day per Head
Number of Fluid Heads 1 – 8 (2 Heads per Gearbox)
Pressure Max. 5000 psig (Hard Packing Only)
Max. 34473 kPa (Hard Packing Only)
Max. 3000 psig (Other Packing)
Max. 20684 kPa (Other Packing)
Plunger Sizes Max. 5000 psig (Hard Packing Only)
Max. 34473 kPa (Hard Packing Only)
Stroke Length Variable – Up to 1″ Maximum
Fluid Suction & Discharge Connection 1/4″ FNPT
Fluid Head Ductile Iron (Std., Not Available for 3/16”)
Stainless Steel (Optional, Std. on 3/16”)
Internal Wetted Components Stainless Steel
Plunger Stainless Steel (Std.)
Case Hardened Stainless Steel (Optional)
Ceramic (Optional)
Packing V-Style Buna, Buna Hard, Viton, Teflon, Fluorosilicone, Bruez, Bruez FFKM, Other Material Arrangements Available
Seals Buna, Metal-to-Metal, Viton, Teflon, Fluorosilicone, Bruez


  • Methanol Injection
  • Chemical Injection
  • Soap Injection
  • Corrosion Inhibitors


  • Bases
  • Tanks
  • Regulators
  • Gauges
  • Stainless Steel Fittings
  • Skid Package
  • Various Electric Motors Available