Gear Pump F21

Specifications

• Emitting flow rate/rotate : 4.0cc/rev ~26cc/rev
  
• Specification For Front Cover :
  
• SAE "A" Mounting Flange
  
• SAE "A-A" Mounting Flange
  
• 4-Bolt Mounting Flange
  
• Option : shaft joint, suction/emitting
  
• Single/Tandem pump

Features

• Joyang JP-Series provides the ultimate in flexibility and powerful family of hydraulic gear pumps with numerous displacements, features, and shaft/port option.
  The JP-Series offers the design of a compact, lightweight and efficient line of pumps with pressure-balanced design for high volumetric, mechanical and overall efficiencies.
  They feature three-piece construction with high strength extrusion aluminum alloy body.
  
  
• JP10-Series pumps are available in eight basic displacements from 1.2 to 9.0cc/rev, operating at continuous pressures to 210bar and speed to 3000rpm.
  
  
• JP20-Series pumps are available in twelve basic displacements from 4.8 to 26cc/rev, operating at continuous pressures to 210bar and speed to 3000rpm.
  
  Complete information can be found by referring to specific sections of this catalog.

Notice of Usage

1. Rotational Direction
   The pump may rotate either clockwise C.W(RH) or Anti-clockwise C.C.W(LH), as viewed from the drive shaft.
   
   
2. Filtration
   Recommended filtration in 150- to 200-mesh suction filter. Further, the degree of contamination of in-tank hydraulic oil should be maintained to be NAS Class 12.
   
   
3. Drive Shaft Centering Accuracy
   When employing a flexible coupling, adjust the concentricity to less than 0.15 TIR, if direct-coupled, adjust the concentricity to less than 0.1 TIR between the pilot mounting diameter and drive shaft of the pump.
   
   
4. System Plumbing
   Tha major objective in the specification of tubing and hose sizes is to limit maximum oil velocity.
   To avoid pump cavitation, maximum inlet line flow should not exceed 2.4m/sec and inlet vacuum should not exceed 150mmHg(0.2kg/cm°) at the normal operating temperature.
   On cold starts, a vacuum of 460mmHg(0.6kg/cm°) can be tolerated for short durations.
   Pump discharge lines should have flow velocities under 6.1m/sec.
   
   
5. Hydraulic Oil
   The viscosity of hydraulic oil used should be ISO VG32-VG68. Ideally, the fluid should have a viscosity of 100 to 180 SUS at temprature, with 7500 SUS maximum viscocity for low temperature startup condition.
   
   
6. Oil Temperature
   The temperature range at normal operation is 0 to 80?
   
   
7. Oil Reservoir
   The reservoires are ideally sized so the volume of reservoir oil is not replaced more than twice per minute.