HC7W miniBOOSTER

HC7W versions: 5 different intensification factors

PIN: 20-207 bar (inlet pressure)

PH: 2,000 bar maximum for media > 5 cSt (mm2/s)

PH: 1,000 bar maximum for media < 5 cSt (mm2/s)

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

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

Mounting: Inline tube

Accessories: Pilot-operated dump valve incorporated

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

Material certificate on request.

 

 

Description

The HC7W is a very compact high-pressure unit capable of delivering pressure up to 2,000 bar weighing only 1.5 kg. It is ideal for use with very thin (low viscosity) medias. It is ideal for use in portable applications like on power packs.

The HC7W raises supplied pressure to a higher outlet pressure and automatically compensates for consumption of media to maintain the high pressure. Adjustment of the outlet pressure is carried out by varying the supplied pressure. With the choice of different high-pressure adapters, a variety of threads can be obtained from the M22x1.5 thread in the HP port.

Flow rates

Intensification factor
i

Max. outlet flow
l/min

Max. inlet flow
l/min

5.0

1.6

14.0

6.6

1.3

13.0

9.0

0.9

13.0

13.0

0.6

12.0

20.0

0.3

12.0

Functions

The basic operation is illustrated in the function diagram. Media 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 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

Connection types

Connection

IN / R

1

1/4" BSPP

2

7/16-20" UNF

Max. tightening torque BSPP

IN / R

1/4" BSPP

  with steel washer

4.0 da/Nm

  with aluminium washer

3.0 da/Nm

  with cutting edge

4.0 da/Nm

Max. tightening torque UNF

IN / R

7/16-20" UNF

  with o-ring

2.0 da/Nm


High-pressure adapters

  Ordering code

Male connection 1

Female connection 2

Max. pressure

7W-430

M22 x 1.5

3/4-16 UNF

2,000 bar

7W-431

M22 x 1.5

Plug

2,000 bar

7W-432

M22 x 1.5

9/16-18 UNF

2,000 bar

7W-433

M22 x 1.5

1/4" BSPP

2,000 bar

7W-436

M22 x 1.5

M16 x 1.5

2,000 bar

7W-439

M22 x 1.5

1/4" BSPP

   800 bar

7W-444

M22 x 1.5

1/2" BSPP

2,000 bar

7W-446

M22 x 1.5

9/6-18 UNF

1,380 bar

7W-448

M22 x 1.5

1 1/8-12 UNF

2,000 bar

High-pressure adapter ordering codes and specifications can be seen from the table in the PDF-file below:

 High-pressure adapters: 7W-900-04

Fluids and materials

Please see: General specifications

Ordering an HC7W

Ordering example of an HC7W with i = 13.0, H1 M22 x 1.5 and H2 19/16-18 UNF.DV incorporated and BSPP connections:
HC7W - 13.0 - B - 12    for media < 5 cSt (mm2/s) tested in water
HC7W - 13.0 - B - 12S for media > 5 cSt (mm2/s) tested in hydraulic oil

Please note!
High-pressure adapter ordering code – see table

Model

Intensification, i

Dump valve

Connections

HC7W


your selection...


 your selection...


see table below

see flow rate table

A = (no) / A model

B = (yes) / B model

G = (proportional) / G model

  Ordering code

IN, R

H1

H2

H3

  HC7W-___-__-11

1/4" BSPP

M22 x 1.5

  HC7W-___-__-21

7/16-20 UNF

M22 x 1.5

  HC7W-___-__-12

1/4" BSPP

M22 x 1.5

9/16-18 UNF

  HC7W-___-__-22

7/16-20 UNF

M22 x 1.5

9/16-18 UNF

  HC7W-___-__-13

1/4" BSPP

M22 x 1.5

9/16-18 UNF

9/16-18 UNF

  HC7W-___-__-23

7/16-20 UNF

M22 x 1.5

9/16-18 UNF

9/16-18 UNF

 

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Iso 9001

miniBOOSTER Hydraulics A/S

Fynsgade 3

DK - 6400 Sønderborg

Denmark