Low Noise, Internal Gear Pump GA and GPA Series Operating Data 3 www.jbj.co.uk/gp-gpa-series-internal-gear-pumps.html Operating Data Inlet Ports min. continuous . . . . . . . . . . . . . . . -0.25 bar min. intermittent . . . . . . . . . . . . . . . -0.40 bar maximum . . . . . . . . . . . . . . . . . . . +2.00 bar Outlet Ports, max with anti-wear hydraulic oils . . . . . . . 100 bar with burner fuel oils . . . . . . . . . . . . . . 50 bar with other fluids . . . . . consult jbj Techniques Shaft Speed Limits, maximum speed (rev/min)* Operating Pressure Frame size 20 bar 100 bar G(P)A1 4,000 3,000 G(P)A2 3,500 3,000 G(P)A3 2,300 2,000 For burner fuel oils max. speed for all sizes n = 1800 rev/min. * Shaft Speed Limits, minimum speed (rev/min) Oil Viscosity Operating Pressure Frame size (cSt) 60 bar 80 bar 10 bar G(P)A1 14.5 500 600 800 9.0 600 800 - 7.5 800 - - G(P)A2 14.5 < 500** 500 600 9.0 500 600 - 7.5 600 - - G(P)A3 14.5 < 500** < 500** 500 9.0 < 500** 500 - 7.5 - - - ** For specific applications consult jbj Techniques technical office. Performance Data Typical at 1500rev/min with oil at 40 cSt and at 38°C Pump 7 bar 25 bar 50 bar 70 bar 100 bar Size l/min kW l/min kW l/min kW l/min kW l/min kW G(*)A1-1 2.6 0.1 2.5 0.15 2.4 0.3 2.3 0.4 2.1 0.6 G(P)A1-2 4.1 0.1 4.0 0.25 3.9 0.5 3.8 0.7 3.6 0.9 G(P)A1-4 6.6 0.15 6.4 0.40 6.2 0.7 6.0 0.9 5.7 1.3 G(P)A2-6 10.3 0.25 10.0 0.6 9.7 1.1 9.3 1.4 8.9 2.0 G(P)A2-10 16.5 0.4 16.1 0.9 15.7 1.6 15.3 2.3 14.8 3.2 G(P)A2-16 25.9 0.6 25.5 1.5 25.0 2.6 25.5 3.7 23.8 5.1 GPA3-25 36.4 0.85 35.2 2.2 34.0 3.8 32.7 5.1 31.3 7.1 GPA3-40 60.4 1.4 58.7 3.0 57.3 5.5 55.9 7.5 54.3 10.8 GPA3-63 94.3 2.2 92.8 4.4 91.2 8.8 89.5 12.0 87.7 16.8 Temperature Limits Anti-wear hydraulic oils . . . . . . . . . . . . . . . . . . . . 0 to 68°C Water glycol . . . . . . . . . . . . . . . . . . . . 0 to 60°C For phosphate esters and before using burner fuel oils, consult jbj Techniques technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk where limits are outside those for hydraulic oil. Whatever the temperature range is, ensure that viscosities stay within the limits in the ‘Hydraulic fluids’ section. Hydraulic Fluids All pumps can be used with anti-wear oils or water-glycols. Burner fuels to BS.2869 Class D or equivalent can be pumped but will necessitate lower maximumpressures and speeds. Add prefix ‘F3’ to model designation when phosphate ester (alkyl based types not permitted) or chlorinated hydrocarbons are to be used. The extreme operating viscosity is from 1000 to 16 cSt but the recommended running range for hydraulic fluids is from45 to 30 cSt. However for burner fuels the range is 5.5 to 1.5 cSt. Noise Levels Typical levels when operating at 100 bar with oil at 28 cSt and 65°C. Inlet pressureminus 0.16 bar. Measured in accordance with ISO 4412. FiltrationRequirements 25 mabsolute, or finer. µ Drive Recommendations Direction of Rotation Clockwise or anti-clockwise (viewed at shaft end). To order see also ‘Model Code’ and ‘Installation Dimensions’ sections. Load and Torque Limits For direct drives, shafts for all single pumps and common frame size double pumps are designed to operate at rated pressure. Double and triple pumps must be used within the following limits where: p , p , p , &p =maximumpressure (bar) of individual sections (referenced 1 2 3 4 from the shaft end) for the application. 3 v , v , v , & v = displacements (cm ) of the same sections. 1 2 3 4 Shaft load* = (p v ) + (p v ) + (p v ) + ( p v ) 1 1 2 2 3 3 4 4
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