Gear pumps & Motors (Group 2/ G)
37Pages

Group 2 gear pumps and motors

General information - Pumps 3 Common formulas 4 Pump parts 4 Driving torques 5 Technical information 6 G pump technical data 6 GN pump technical data 6 Flow, performance and power chart 7 Pressure definition 7 Coding System 8 Pumps and motors codification with integrated valves 10 Drive shaft-front flange common combinations11 Drive shafts12 Front flanges14 Front flanges and shaft with outrigger bearing (5G) 16 Single pumps and motors (G) 18 Configuration and dimensions examples 19 General information - Motors 22 Technical information22 Direction of rotation22 Common formulas 23 Technical...

General information - Pumps G GN Features Roquet gear pumps offer: ■ High efficiency thanks to the specialized production processes. ■ Axial compensation through floating bearings. ■ High quality bushings for gear pumps. ■ Aluminium or cast iron body. ■ Front flange and back cover made of cast iron. ■ NBR seals in the standard version. ■ FKM seals available for high temperature applications. ■ 100% of pumps delivered are tested. ■ Option to create multiple pumps combining different Roquet pump models. ■ Different multiple pumps inlets connected, common inlet & separate stages. ■ Front...

General information - Pumps n = rotation speed [rev/min] ∆p = pressure difference [bar] Q = pump flow [l/min] A = tube section [cm2] M = necessary driving torque [N ∙ m] P = necessary driving power [kW] ηvol = volumetric efficiency (≈0,95) [%] ηhm = hydromechanic al efficiency (≈0,89) [%] Pump parts 1 Nut 2 Safety washer 3 Scraper 4 Circlip 5 Shaft seal 6 Front flange Anti-extrusion gasket Compensation gasket Bearing assembly Key Drive shaft Driven shaft Pin Pump housing Housing gasket Back cover Washers Bolts Installation recommendations · Avoid radial and axial forces on the pump shaft...

General information - Pumps Versions Standard version (Inlets connected) Reference · (Without code). The oil can pass between sections. Common inlet - I1 (Common inlet, body 1 C inlet port). - I2 (Common inlet, body 2 C inlet port). Designed to use less inlets than outlets. Separate stages version · S (Separate stages). S Note: The pump length and the intermediate flanges are different than the above ones. Driving torques Driving torques between pumps G+G - Common inlet Max. 100 Nm G+GS - Common inlet G Series — Gear pumps and motors Max. 100 Nm G+GS - Separate stages

Note: With regard to all reversible pumps (G and GN), maximum pressure is 250 bar (3600 psi), except for those values where the pressure is lower. Note: The definition of the pressure ranges is shown on page 7. G Series — Gear pumps and motors

Technical data - Pumps Flow, performance and power chart according to displacement Pressure in Bar 100 15 23,3 cm3/rev RPM Theoretical efficiency Real efficency NOTE: The values shown in the above diagram have boeen obtained using 32cSt Kinematic viscosity oil. Pressure definition Technical data tables show 3 levels of maximum pressure to which a pump can be used: P1, t1 – Maximum continuous pressure P2, t2 – Maximum intermittent pressure P3, t3 – Maximum peak pressure P [bar] t1 [max.] >> t2 [max.] P3 P2 P1 t2 [max.] = 5 s t [s] G Series — Gear pumps and moto

* Jmaking moves Technical data - Pumps G GN Code V FKM seals and shaft seal RV Only FKM shaft seal Type Without pulley With pulley Pump with floating shaft and back-up bearing Model Single - Aluminium body Single - Cast iron body Multiple (G+G) Multiple (GN+GN) Multiple (G+G0) Multiple (GN+G0) Rotation Direction Clockwise Counterclockwise Reversible Standard Common inlet Separate stages Port Connection Forms For more options see ports © o ° o_ L Drive Shaft Form SAE B - 13 teeth — SAE J498b European tapered 1:8 SAE A - 9 teeth — SAE J498b SAE A - 015,88 straight German tapered 1:5 SAE - 11...

Technical data - Pumps G GN Part number example GM Pump GM Without pulley Clockwise Rotation Part number example GS Pump Without pulley Common Inlet (Inletl) Front flange type: 10 Separate Stages Clockwise Rotation Front flange type: 10 G Series — Gear pumps and motors

* Jmaking moves Technical data - Pumps G GN Pumps and motors codification with integrated valves Relief valve Tamper-proof sealable model and standard set pressure Pressure range V11 Set at 80 bar (5-80 bar) V12 Set at 160 bar (85-175 bar) Tamper-proof sealed model and specific set pressure Pressure range V41T*** 5-80 bar In the relief valve with tamper-proof cap, the signs * the set pressure (3 numbers) of the valve. See minimum set pressure curve (page 29). Example 1: 1G18CDE10R/V12 Example 2: 1G11CDE10R/V41T060 VA Check valve See pressure diagram - flow (page 29). Example: 1G11CDE10R/VA...

Roquet * Jmaking moves Drive shaft-front flange common combinations The table below only contains the most common combinations. Contact the Sales Department for other combinations. G Series — Gear pumps and motors

Drive shafts Contact with the Sales Department for other combinations. NOTE: The drive shaft lenght is given from the side A of the front flanges (see pages 14 and 15). Shaft form B Roquet Tang SAE J498b 13 teeth Pitch 16/32 Side fit Pressure angle 30 deg SAE J498b 9 teeth Pitch 16/32 Side fit Pressure angle 30 deg SAE J498b 11 teeth Pitch 16/32 Side fit Pressure angle 30 deg

Drive shafts Contact with the Sales Department for other combinations. NOTE: The drive shaft lenght is given from the side A of the front flanges (see pages 14 and 15). Shaft form Q Max. driving torque 100 Nm SAE J498b 10 teeth Pitch 16/32 Side fit Pressure angle 30 deg Shaft form Z Max. driving torque 100 Nm 2 16 The shaft doesn’t protrude Return to Pumps Return to Motors

Front flanges Contact with the Sales Department for other combinations. Front flange type 09 Front flange type 10 European standard Front flange type 19 Front flange type 22 German standard – 2 bolts (Without shaft seal) German standard – 2 bolts (With shaft seal) Front flange type 23 Front flange type 29 German standard Tapa 29 German standard (High pressure) 90