PGF1-21/2.2RA01VP1

The PGF1-21/2.2RA01VP1 internal gear pump belongs to the PGF Internal Gear Pumps series and is manufactured by Bosch Rexroth for hydraulic automation tasks. It displaces 2.2 cm³ per revolution, providing precise metering of oil to actuators and control valves. At 1450 rpm under 10 bar, the unit supplies 3.2 L/min, matching the flow demands of small circuits. The pump operates down to 600 rpm so start-up sequences can run at reduced noise and cavitation risk. Its direction of rotation is clockwise, which must be observed when coupling the drive shaft. A continuous pressure rating of 210 bar allows steady operation without excessive wear. The centering diameter of 45.24 mm helps align the housing accurately with the motor pilot. A 2-hole P1 mounting flange secures the body while keeping the footprint small. The pressure port carries a G 1/4 thread that fits common BSP fittings in compact manifolds. Total mass is limited to 0.9 kg, easing assembly on mobile frames. Fluid must meet ISO 4406 cleanliness class 20/18/15 to avoid gear erosion.

The housing accepts up to 250 bar intermittent pressure during short load surges, preventing fatigue in cyclic applications such as clamping or rapid positioning cylinders where momentary peaks are common. A maximum drive torque of 30 Nm governs the shaft connection, so designers must pair the pump with couplings and motors that transmit this value without slippage or premature wear. Permissible speed extends to 4500 rpm, and this upper limit, together with the fixed displacement, supports higher flow whenever the system demands fast actuator movement. On the inlet side a G 1/4 suction port mirrors the pressure connection, allowing identical hose assemblies and minimizing the number of fitting types held in service kits. FKM seals resist heat and common hydraulic media, preserving elasticity across extended duty cycles and guarding against external leakage. These combined limits confirm suitability for compact power units and distributed manifolds where space, pressure reserve, and sealing integrity are critical parameters in automated machinery.