HC7-U 

Data:

 

HC7-U versions: 10 different intensification factors

PIN: 20 – 207 bar

PH: 2,000 bar maximum

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

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

Mounting: Inline tube

Weight: 1.5 kg.

Model versions:

B model = with dump valve
G model = direct proportionally controlled

Material certificate 3.1 on request

HC7-U is designed for applications with cylinders that have weak spring return.

Description

The HC7-U 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 in portable applications like on power packs. Oil from the cylinder will be released directly via T-port to the tank, with a minimum back pressure.

The HC7-U 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. With the choice of different high-pressure adapters, a variety of threads can be obtained from the M22x1.5 thread in the HP port. Higher pressure is available on request.

Flow rates

Intensification factor
i
Max. intensified outlet flow
l/min
Max. inlet flow
l/min
4.02.014.0
5.01.614.0
6.61.313.0
7.61.113.0
9.00.913.0
10.30.812.0
13.00.612.0
16.00.512.0
20.00.312.0
25.00.212.0

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 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

7-113-01

Dimensions

Dimension drawing 7-130-02

Connection types

ConnectionIN / RTH
11/4" BSPP1/4" BSPPM22 x 1.5
27/16-20" UNF7/16-20" UNFM22 x 1.5

High-pressure adapters

High-pressure adapter ordering codes and specifications are shown in the PDF-file: 7-900-07

Fluids and materials

Additional information is available on the site General specifications

 

Ordering an HC7-U

Ordering example of an HC7-U with i = 13.0, H1 M22 x 1.5 and H2 9/16-18 UNF, DV incorporated and BSPP connections: HC7 – 13.0 – B – 12U

Attention notes!
High-pressure adapter is required, please specify ordering code – see high-pressure adapter table.
High-pressure adapters will be factory mounted.

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

  • Dynamic – low hysteresis: Ordering example of an HC7-U with i = 13.0 RV incorporated, H1 M22 x 1.5 and H2 9/16-18 UNF and BSPP connections: HC7 – 13.0 – G – 12U
  • Fail safe – high hysteresis: The RV valve opening ratio is to be determined on individual basis. Contact our technical support. Ordering example of an HC7-U with i = 13.0 RV with opening ratio x.x incorporated, H1 M22 x 1.5 and H2 9/16-18 UNF and BSPP connections: HC7 – 13.0 – G – x.x – 12U
R

Model

  • HC7
R

Intensification, i

  • Select factor
  • See flow rate table
R

Model version

  • Select type
  • B = with DV
  • G = with proportional valve
R

Connections

  • See table below

  Ordering codeIN / RH1H2H3
  HC7-___-__-11U1/4" BSPPM22 x 1.5--
  HC7-___-__-21U7/16-20 UNFM22 x 1.5--
  HC7-___-__-12U1/4" BSPPM22 x 1.59/16-18 UNF-
  HC7-___-__-22U7/16-20 UNFM22 x 1.59/16-18 UNF-
  HC7-___-__-13U1/4" BSPPM22 x 1.59/16-18 UNF9/16-18 UNF
  HC7-___-__-23U7/16-20 UNFM22 x 1.59/16-18 UNF9/16-18 UNF

Max. tightening torque BSPP

IN / RT
1/4" BSPP1/4" BSPP
with steel washer4.0 da/Nm4.0 da/Nm
with aluminium washer3.0 da/Nm3.0 da/Nm
with cutting edge4.0 da/Nm4.0 da/Nm

Max. tightening torque UNF

IN / RT
7/16-20" UNF9/16-18 UNF
with o-ring2.0 da/Nm3.5 da/Nm