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Bronze Gear pump Hydraulic

1/2" Pump Only
Model Number
8304b-hm5c Hypro hydraulic bronze gear pump
Bronze Gear pump hydraulic driven for de-icing fluids.

303 SS fasteners, brass gears. Order hydraulic motor seperately. No relief valve. Image is stock. Pump has pedestal with standard shaft

This hydraulic motor driven pump achieves up to 10.4 gpm (39.4 lpm) and 100 psi (6.9 bar). The series includes models 8304B-HM5C and 8304BV.

This positive-displacement pump is ideal for de-icing (pre-wet). Combining the pump and motor as a single unit eliminates the need for shaft alignment or Love-Joy® coupling. The unit’s compact size allows it to be used in a wide variety of locations and makes it especially attractive for quick, easy retrofit installations. Sodium, Magnesium and calcium chloride, beet juice.


  • Industry-proven gear pump design offers minimal moving parts for less wear and longer life
  • State-of-the-art internal gear gerotor motor provides maximum service in open and closed center systems
  • 1/2" NPT inlet and outlet ports with anti-reverse check safeguards against change in flow direction
  • Optional pressure relief valve protects against pressure buildup
  • Brass body and gears 


  • State-of-the-art internal gear gerotor motor ..Maximum service for any application
  • Bypass adjustment ........................................Allows fine tuning of flow control - Option
  • 1⁄2" NPT ports with anti-reverse check ............Safeguards against change in flow direction

Herbicide users:  Get up to 10 times longer pump life! 


More Information
Model Number 8304B
Series Gear Pump Electric 4.8 to 24gpm
Max Flow (GPM.) 10
Max Flow GPH 600
TDH Maximum (Ft) 288
TDH Maximum (PSI) 125
Inlet Connection Type FNPT
Inlet (In.) 0.5
Outlet Connection Type FNPT
Outlet (In.) 0.5
Wetted Materials Bronze
Elastomers / O-ring Buna-Nitrile
Motor Hydraulic Motor
Speed (RPM.) 1725
Self Priming Yes
Suction Lift (FT.) 7
Max Operating Temperature (F) 180
Viscosity Catsup 3000.00 cp 20000.00 ssu
Shaft Steel
Length (In.) 13.0000
Mechanical Seal TYPE 21
Mechanical Seal Face Carbon-ceramic
Mechanical Seal Type Single
Impeller Number (In.) 3
Other Bi-rotational allows for flow direction reversal. Units available with motor. Max. rated pump speed 1725 RPM. Relief valve safeguards against pressure buildup once set. Test data taken on SAE 10 wt. oil at 70° F (500 SSU). Performance in water will decrease by about 10%, and HP required will also be reduced by 10%. (Don’t use water with Cast Iron.) Pump performance when pump is new. As pump wears, the performance will decrease. (*) Female NPT inlet and outlet (in inches) . (**) Suction lift requires wetted gears and primed seal chamber. (***) Motor not provided. NOTES: Pumps with motors are HP rated to handle up to 500 SSU at 125 PSI and specific gravity of 1.0. Max. PSI = 125 Max. Viscosity = 500 SSU at 1725 RPM with standard spur gears Max. RPM = 1725 Max. Specific Gravity = 1.1 at 125 PSI, up to 1.6 at lower PSI & viscosity. Max. Input Torque = See chart above. Reverse Rotation = Pumps are equipped with pressure relief valves and can be run in reverse rotation; however, pressure relief valve will not function when pump is reversed unless pump relief valve cover is rotated 180°. The pump relationship between volume (GPM), pressure (PSI), speed (RPM) and horsepower is shown on performance chart in Shertech Motor Manual form L-4082. When pumping a more viscous liquid, a slower speed, a larger pipe size pump, and possibly a larger motor should be selected.
Pump Bearing Carbon/graphite
Impeller Material Brass gears
Duty Continuous
Drain No
Weight (Lbs) 15.000000
Warranty (YRS.) 1