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The 180B0071 displacement pump is manufactured by Danfoss and belongs to the PAH Displacement Pumps series. It supplies hydraulic circuits in automation systems by delivering liquid flow that scales with shaft speed. A geometric displacement of 25 cm³ per revolution defines the volume transferred for each shaft turn, serving as the basis for flow calculations. At 1000 rpm the pump produces 23 l/min, giving designers a reference point for low-speed duty. When the drive reaches 1500 rpm the flow rises to 35.3 l/min to match medium throughput requirements. Maximum outlet pressure is limited to 50 barg to protect downstream components, while a minimum outlet pressure of 10 barg is required to keep internal clearances sealed. Torque demand peaks at 25 Nm when the pump is loaded to that pressure, so coupling selection must accommodate this value. Speed can be pushed up to 2400 rpm, but operation cannot fall below 700 rpm, the specified minimum speed that prevents excessive slip. A peak inlet pressure of 20 barg safeguards the shaft seal against cavitation.
In routine service the pump may also be run at 1200 rpm, where it supplies 7.4 gpm, or at 1800 rpm, where flow reaches 11.3 gpm for higher demand circuits. A continuous duty limit of 1000 rpm is stated to guarantee bearing longevity during extended runs. When driven at 1500 rpm the prime mover must provide 5.5 kW, and at 1800 rpm the required rating increases to 7.5 hp, ensuring adequate power for the corresponding flow and pressure. Acoustic emissions remain at 79 dB(A), permitting installation in machinery rooms that observe standard industrial noise thresholds. The bare unit weighs 19 kg, allowing a single technician to handle mounting without specialized lifting equipment. Together these parameters complete the operating envelope and aid selection of drive, piping, and supports for hydraulic automation tasks.
Flow At 1000 Rpm
23 l/min
Flow At 1200 Rpm
7.4 gpm
Flow At 1500 Rpm
35.3 l/min
Flow At 1800 Rpm
11.3 gpm
Geometric Displacement
25 cm³/rev
Max Outlet Pressure
50 barg
Max Speed
2400 rpm
Min Continuous Speed
1000 rpm
Min Outlet Pressure
10 barg
Min Speed
700 rpm
Motor Size At 1500 Rpm
5.5 kW
Motor Size At 1800 Rpm
7.5 hp
Peak Inlet Pressure
20 barg
Sound Pressure Level
79 dB(A)
Torque At Max Pressure
25 Nm
Weight
19 kg
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