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[The HC4 miniBOOSTER]
¡ß 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 3.0 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.

¡ß Inlet pressure
Inlet pressure 20-200 bar

¡ß Outlet pressure
800 bar maximum

¡ß Return pressure to tank
PReturn as low as possible

¡ß Intensification ratios
Outlet pressure PH = (PIN - PReturn) ¡¿ i (Intensification)

¡ß Number of Intensification ratios
9 different intensifications

¡ß Mounting
Inline tube

¡ß Accessories
Pilot operated dump valve available



 
¡ß Flow Rates
Intensification factori
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
¡ß Max. tightening torque BSP

IN/R 3/8" BSP
H 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
¡ß Max. tightening torque UNF
IN/R 9/16-18" UNF
H 9/16-18" UNF
with o-ring
 3.5 da/Nm
 6.0 da/Nm
¡ß Dimensions
¡ß 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.
¡ß Ordering a HC2

Model Intensification, i Dump Valve Connections
HC4 -   -   -  
see flow rate table A = (no) 1
B = (yes) 2

¡ß Ordering example of a HC4 with i = 4.3,
DV incorporated and BSP connections:
HC4 - 4.3 - B - 1
Connection
IN,R
H
1
3/8" BSP
1/2"BSP
2
9/16-18 UNF
3/4-16 UNF