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The HC4 miniBOOSTER |
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HC4 versions: 9 different intensification factors PIN: 20 – 200 bar (inlet pressure) PH: 800 bar maximum (outlet pressure) PRETURN: As low as possible (Return pressure to tank) Intensification ratios: PH = (PIN – PReturn) i (Intensification) Mounting: Inline tube Accessories: Pilot operated dump valve available A model = no dump valve |
Description
The HC4 is ideal for use in applications where a higher volume of high pressure fluid is required. The HC4 is a compact unit weighing only 3.7 kg, but it delivers up to 5.0 liters/min. outlet flow. Like the HC2, it raises supplied pressure and automatically compensates for consumption of oil to maintain the high pressure. Adjustment of the outlet pressure is carried out by varying the supplied pressure.
Flow Rates
| Intensification factor i |
Max. outlet flow l/min |
Max. inlet flow l/min |
| 1.3 | 1.5 | 25.0 |
| 1.8 | 1.2 | 25.0 |
| 2.1 | 1.0 | 25.0 |
| 2.6 | 0.7 | 25.0 |
| 3.2 | 5.0 | 35.0 |
| 4.3 | 4.0 | 35.0 |
| 5.1 | 3.5 | 35.0 |
| 6.3 | 2.5 | 35.0 |
| 9.8 | 2.0 | 35.0 |
Dimensions
Functions
The basic operation is illustrated in the function diagram. Oil is fed through the directional valve CV to the IN port, flowing freely through the check valves KV1, KV2 and DV to the high pressure side H. In this condition maximum flow through the booster is achieved giving a fast forward function.
When pump pressure is reached on the high pressure side H, valves KV1, KV2 and DV will close. The end pressure will be achieved by the oscillating pump unit OP. The unit will automatically stall when end pressure on high pressure side H is reached. If there is a pressure drop on the high pressure side due to consumption or leakage, the OP valve will automatically operate to maintain the end pressure.
Function Diagram
Connection types
| Connection | IN / R | H |
| 1 | 3/8" BSP | 1/2" BSP |
| 2 | 9/16-18 UNF | 3/4-16 UNF |
Max. tightening torque BSP
| IN / R | H | |
| 3/8" BSP | 1/2" BSP | |
| with steel washer | 6.0 da/Nm | 13.0 da/Nm |
| with aluminium washer | 4.0 da/Nm | – |
| with cutting edge | 6.0 da/Nm | 13.0 da/Nm |
Max. tightening torque UNF
| IN / R | H | |
| 9/16-18" UNF | 3/4-16" UNF | |
| with o-ring | 3.5 da/Nm | 6.0 da/Nm |
Fluids and materials
Please see General Specifications.
Ordering a HC4
Ordering example of a HC4 with i = 4.3,
DV incorporated and BSP connections: HC4 - 4.3 - B - 1
| Model | Intensification, i | Dump Valve | Connections | |||
| HC4 |
|
your selection... |
|
your selection... |
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your selection... |
| see flow rate table | A = (no) / A model | 1 | ||||
| B = (yes) / B model | 2 | |||||
| G = (proportional) / G model | ||||||
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