Huade brand A2FO fixed pump is suitable for hydrostatic drives in an open circuit. Based on the concept of energy saving and environmental protection, Huade Hydraulic works hard to provide green axial piston fixed pump. A2FO series pump has features of small size, high efficiency and energy saving, which is an ideal choice for customer.
■Shaft seal...Permissible pressure loading
▶The service life of the shaft seal is influenced by the speed of the axial piston unit and the case drain pressure (case pressure).
▶The mean differential pressure of 2 bar between the case and the ambient pressure may not be continuously exceeded at normal operating temperature.
▶For a higher differential pressure at reduced speed, see diagram.
Momentary pressure spikes (t < 0.1 s) of up to 10 bar are permitted. The service life of the shaft seal decreases with an increase in the frequency of pressure spikes.
▶The case pressure must be equal to or higher than the ambient pressure.
■Static characteristic
♦Sizes 10 to 200
♦Sizes 250 to 500
NOTE: The values are valid for an ambient pressure Pabs = 1 bar
■Temperature range
▶The FKM shaft seal may be used for case drain temperatures from -25℃ to +115℃
▶For application cases below -25 °C, an NBR shaft seal is required(permissible temperature range: -40 °C to +90 °C). State NBR shaft seal in plain text when ordering. Please contact us.
■Direction of flow
| Direction of rotation, viewed on drive shaft | Direction of flow |
| clockwise (R) | S→B |
| counter-clockwise (L) | S→A |
■Long-life bearing
▶Sizes 250~500
▶For long service life and use with HF hydraulic fluids. Identical external dimensions as motor with standard bearings. Subsequent conversion to long-life bearings is possible.
▶Bearing and case flushing via port U is recommended.
▶Flushing flow...recommended
| Sizes | 250 | 355 | 500 |
| qv flush (L/min) | 10 | 16 | 16 |
| Ports | Port for | Diagram |
| A,B | Working port |
|
| S | Suction port | |
| T | Drain port | |
| U(Sizes 250~500) | Flushing port |
Sizes 5~500 Series 6 Nominal pressure 400 bar Maximum pressure 450 bar
Features:
▶ Fixed pump with axial tapered piston rotary group of bent-axis design, for hydrostatic drives in an open circuit
▶ For use in mobile and stationary applications,the flow is proportional to the drive speed and displacement
▶ The drive shaft bearings are designed for the bearing service life requirements usually encountered in these areas
▶ High power density,Small dimensions,High total efficiency,Economical design, One-piece tapered piston with piston rings for sealing
Application:
Axial piston fixed pump A2FO is suitable for mobile machinery or industrial fields.
Address
No. 27, Yangsha Road, Huilong Town, Qidong City, Jiangsu Province, China
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