HC22 versions: 13 different intensification factors

PIN: 20 – 207 bar

PH: 800 bar maximum

PRETURN: As low as possible (return pressure to tank)

POUTLET: PH = (PIN – PRETURN) x i (intensification)

Mounting: Inline tube

Weight: 2.3 kg.

Model versions:

A model = no dump valve
B model = with dump valve
G model = direct proportionally controlled

Material certificate 3.1 on request


The HC22 is a compact unit weighing only 2.3 kg. It is ideal for use in a variety of applications where building and maintaining high pressure is required.

The HC22 raises supplied pressure to a higher outlet pressure and automatically compensates for oil consumption to maintain the high pressure.

The HC22 incorporates a Pressure Reducing Valve (PRV) to control inlet pressure to the booster section, and an optional orifice to reduce inlet flow to the maximum allowed for the intensification ratio selected.

The integrated Pressure Reducing Valve (PRV) protects both booster and high-pressure tool against too high pressure. It secures a stable high pressure regardless of changes in the tank line pressure.

Flow rates

Intensification factor
Max. intensified outlet flow
Max. inlet flow


The basic operation is illustrated in the function diagram. Oil is fed through the directional valve (in the customer system) to the IN port, flowing freely through the PRV (pos. 5) and the internal check valves 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, the internal check valves will close. The end pressure will be achieved by the oscillating pump unit OP. The unit will automatically stall when end pressure on the high-pressure side H is reached. If a pressure drop on the high-pressure side exists due to consumption or leakage, the OP valve will automatically operate to maintain the end pressure.

Function diagram



Dimension drawing 2-136-03

Connection types

ConnectionIN / RH1H2 / H3 / H4
11/4" BSPP1/4" BSPPOn request

Fluids and materials

Additional information is available on the site General specifications


Ordering an HC22

Ordering example of an HC22 with i = 4.0, DV incorporated and BSPP connections: HC22 – 4.0 – B – 1

Attention note!
The G-model is available in 2 variants, when ordering please specify accordingly:

  • Dynamic – low hysteresis: Ordering example of an HC22 with i = 4.0 RV incorporated and BSPP connections: HC22 – 4.0 – G – 1
  • Fail safe – high hysteresis: The RV valve opening ratio is to be determined on individual basis. Contact our technical support. Ordering example of an HC22 with i = 4.0 RV with opening ratio x.x incorporated and BSPP connections: HC22 – 4.0 – G – x.x – 1


  • HC22

Intensification, i

  • Select factor
  • See flow rate table

Model version

  • Select type
  • A = without DV
  • B = with DV
  • G = with proportional valve


  • Select thread
  • 1 = BSPP

Max. tightening torque BSPP

IN / RH1
1/4" BSPP1/4" BSPP
with steel washer4.0 da/Nm4.0 da/Nm
with aluminium washer3.0 da/Nm
with cutting edge4.0 da/Nm4.0 da/Nm