HC2D2 versions: 8 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 intensification factor

Drain connections: Max. 5 bar

Mounting: Inline tube

Weight: 4.2 kg.

Model version:

A model = no dump valve

Material certificate 3.1 on request


The HC2D2 is a dual media unit which is capable of delivering up to 4.2 l/min flow on the high-pressure end. Like other miniBOOSTER models, the HC2D2 raises supplied pressure to a higher outlet 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. Relative to its flow capability, the HC2D2 is a compact unit weighing 4.2 kg.

Flow rates

Intensification factor
Max. intensified outlet flow
Max. inlet flow


The basic operation is illustrated in the function diagram. Media 1 is fed through the IN port flowing freely through the bistable valve BV1 driving the LP pistons. From the suction inlet IN Media 2 is drawn through the check valves 2 x KV1, and pumped through the 2 x KV2 to the high-pressure side H. In this condition, maximum flow through the booster is achieved giving a fast-forward function.

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 HP1 and HP2 units will automatically operate to maintain the end pressure.

Function diagram



Dimension drawing 2D2-120-03

Connection types

ConnectionIN / RH1 / H2S1 / S2D1 / D2
11/4" BSPP1/4" BSPP1/4" BSPP1/8" BSPP

Dynamic seals

CodeSeal material media 1 / 2Outlet pressure
HHH-PUR / H-PURMax 800 bar HP
HPH-PUR / PEEKMax 800 bar HP
EPEPDM / PEEKMax 800 bar HP
HEH-PUR / EPDMMax 500 bar HP
EEEPDM / EPDMMax 500 bar HP

Fluids and materials

Additional information is available on the website under Products → General specifications.

Ordering an HC2D2

Ordering example of an HC2D2 with i = 4.0, with BSPP connections and H-PUR dynamic seals:

HC2D2 – 4.0 – A – 1HH



  • HC2D2

Intensification, i

  • Select factor
  • See flow rate table

Model version

  • Select type
  • A = without DV


  • Select thread
  • 1 = BSPP

Dynamic seals

  • Select seal type
  • See dynamic seal table

Max. tightening torque BSPP

IN / RH1 / H2S1 / S2D1 / D2
1/4" BSPP1/4" BSPP1/4" BSPP1/8" BSPP
with steel washer4.0 da/Nm4.0 da/Nm4.0 da/Nm2.0 da/Nm
with cutting edge4.0 da/Nm4.0 da/Nm4.0 da/Nm2.0 da/Nm