Vickers | PFB10-FRY-31
PFB10 FRY 31
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The PFB10 FRY 31 piston pump belongs to the Piston Pumps series and is manufactured by Vickers for hydraulic automation circuits where consistent flow is required. Its geometric displacement of 21.1 cm³ per revolution defines the fixed volume moved each shaft turn, establishing the base flow calculation. When driven at 1800 r/min the pump delivers 37.8 l/min, providing a common reference point for sizing valves and actuators. It tolerates working pressures up to 210 bar with petroleum-based oil, allowing it to power medium-pressure systems such as presses or machine tools. A permitted speed limit of 3200 r/min supports higher flow demands without mechanical overstress. The drive motor must supply up to 26.1 kW, a figure that guides power-pack selection. Right-hand clockwise rotation matches standard engine and electric motor output shafts, and a foot bracket mounting arrangement fixes the housing rigidly on a frame to control vibration.
This pump reaches a theoretical delivery of 68.1 l/min when operated at its maximum speed, illustrating peak throughput for surge or rapid-cycle functions. Two case drain ports threaded .750-16 UNF-2B route internal leakage to tank, preventing excess housing pressure. The inlet and outlet are tapped 1.625-12 UN-2B, providing straightforward connection to SAE hydraulic tubing adapters. Case backpressure must stay below 0.69 bar to protect shaft seals and bearings. Power is transmitted through a 6.35 mm keyed shaft, so the coupling hub must include a matching keyway to lock torque. The pump can run in oil temperatures up to 65 °C, a constraint that dictates cooler sizing in continuous duty. With a weight of 11.8 kg in foot-mount form, the unit can be installed or removed by one technician without lifting equipment.
Technical Specifications
Case Drain Thread
.750-16 UNF-2B (2 places)
Delivery At 1800 R/min
37.8 l/min (10 USgpm)
Geometric Displacement
21.1 cm3/rev (1.29 in3/rev)
Maximum Case Pressure
0.69 bar (10 psi)
Maximum Input Power
26.1 kW (35 hp)
Maximum Operating Temperature
65°C (150°F)
Maximum Pressure (petroleum Oil)
210 bar (3000 psi)
Maximum Speed (petroleum Oil)
3200 r/min
Mounting Type
Foot Bracket
Port Thread
1.625-12 UN-2B (2 places)
Rotation
Right-Hand (Clockwise)
Shaft Key Size
6.35 mm (0.250 in)
Theoretical Delivery At Max Speed
68.1 l/min (18 USgpm)
Weight (foot Mounting)
11.8 kg (26 lb)
1620 Old Apex Road
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