Pneumatically Driven Chemical Injection Pump

Product Details

The Bruin BR5000 Chemical Injector Pump is a single acting, positive displacement plunger type pump. Powered by pneumatic pressure acting against a diaphragm, equipped with a spring return, automatic switching mechanism and available in 6 plunger sizes. The BR5000 can produce output volumes up to 2150 Litres per day with a 1 ¼” head and discharge pressures up to 12000 psig with a 1/4” head. Volume is controlled based on plunger size, stroke length selection, and the speed of the pump via a speed control valve. Maximum discharge capability is governed by the packing selection and discharge pressure can be controlled with the supply pressure via a regulator.


  • Adjustable speed (0 – 60 spm) and plunger sizes (1/4”, 3/8”, 1/2”, 3/4”, 1” & 1 ¼”) provide an adjustable volume output up to 2150 Litres per day maximum.
  • Micro Switch system provides oilless operation.
  • Safety relief valve prevents overpressurization.
  • Lightweight aluminum pump body and double Buna nylon reinforced diaphragms.
  • 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 Pneumatically Operated
Volume 0 – 2150 Litres / Day
0 – 472 Imp. Gal. / Day
0 – 568 US. Gal. / Day
Pressure Max. 12000 psig (Hard Packing Only)
Max. 82737 kPa (Hard Packing Only)
Max. 3000 psig (Other Packing)
Max. 20684 kPa (Other Packing)
Operating Supply Pressure 50 psig (Maximum)
Plunger Sizes 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1 ¼”
Stroke Length 1/2” or 1 ¼”
Switching System Micro Switch (Std.)
Rotary Pilot Valve (Optional)
Fluid Suction & Discharge Connection 1/4″ FNPT
Supply Connection ¼” FNPT (Micro Switch)
¼” FNPT (Pilot Valve)
Exhaust Valve Connection ⅜” FNPT
Fluid Head Ductile Iron (Std.)
Stainless Steel (Optional, Std.)
Internal Wetted Components Stainless Steel
Plunger Stainless Steel (Std.)
Case Hardened Stainless Steel (Optional)
Ceramic (Optional)
Diaphragm Buna w/ Nylon Reinforcement (2 per Unit)
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