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Marzocchi hydraulic gear pump GHP2BK1-D-16, GHP3A-D-50-FG

GHP2BK1-D-16

Model Breakdown

  • GHP2: Group 2 high-pressure gear pump, aluminum body with cast iron flange and cover
  • BK1: Shaft-supported reversible rotation version
  • D: Clockwise rotation (when viewed from the shaft end)
  • 16: Displacement code (11.5 cm³/rev or 0.701 in³/rev)

Technical Parameters

Parameter
Value
Displacement
11.5 cm³/rev (0.701 in³/rev)
Max Continuous Pressure
280 bar (4061 psi)
Max Intermittent Pressure
295 bar (4278 psi)
Max Peak Pressure
310 bar (4496 psi)
Max Speed
4000 rpm
Flow Rate at 1500 rpm
17.25 l/min (4.56 US gpm)
Mounting
Flange mounting (D)
Shaft Type
Standard keyed shaft (BK1 version)
Rotation
Reversible (BK1) with standard clockwise (D) default
Ports
Standard SAE J1926/1 (ISO 11926-1) flanged ports
Seals
Standard nitrile rubber (NBR) 双唇密封
Body Material
Aluminum alloy
Flange/Cover Material
Cast iron
Operating Temperature
-40°C to +80°C (-40°F to +176°F)
Viscosity Range
10 to 1500 cSt

Accessories Supplied

  • Woodruff key (code 522055)
  • M12x1.5 set screw (code 523016)
  • Split elastic ring (code 523005)

GHP3A-D-50-FG

Model Breakdown

  • GHP3: Group 3 high-pressure gear pump, aluminum body with cast iron flange and cover
  • A: Specific configuration variant with different mounting/port options
  • D: Clockwise rotation (when viewed from the shaft end)
  • 50: Displacement code (33 cm³/rev or 2.014 in³/rev)
  • FG: Special options – F=with pressure limiting valve, G=mechanical seal

Technical Parameters

Parameter
Value
Displacement
33 cm³/rev (2.014 in³/rev)
Max Continuous Pressure
270 bar (3916 psi)
Max Intermittent Pressure
290 bar (4206 psi)
Max Peak Pressure
285 bar (4134 psi)
Max Speed
3000 rpm
Flow Rate at 1500 rpm
49.5 l/min (13.08 US gpm)
Mounting
Flange mounting (D)
Rotation
Clockwise (D)
Ports
Standard SAE J1926/1 (ISO 11926-1) flanged ports
Seals
Mechanical seal (G option)
Built-in Valve
Pressure limiting valve (F option)
Body Material
Aluminum alloy
Flange/Cover Material
Cast iron
Operating Temperature
-40°C to +80°C (-40°F to +176°F)
Viscosity Range
10 to 1500 cSt

Accessories Supplied

  • Woodruff key (code 522058)
  • M14x1.5 set screw (code 523017)
  • Split elastic ring (code 523006)

General Notes

  • Both pumps are designed for heavy-duty industrial and mobile applications
  • High overall efficiencies, typically greater than 90%
  • Available in various mounting formats (European, SAE, German standard)
  • Specific details may vary slightly; always refer to the official Marzocchi product catalog for the most accurate information
Would you like me to add a quick cross-reference table comparing the two pumps side by side for easy comparison?