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Monoblock Directional Valves, Series HDM

 

 

Description

Series HDM directional control valves feature compact, cast monoblock bodies and have high operating pressure ratings.

Available in 9 different sizes, the large range of spools, spool operators, levers and auxiliary shock/anti-cavitation valves make the HDM series especially suitable for use in medium-complexity circuits. They are also very suitable for straight-forward applications in which a particularly small overall size is required.

The HDM series is available in the following versions: open centre, parallel/series, closed centre and carry-over.

A further notable feature is the very low level of internal spool leakage.

Advantages

  •    -  Low weight, small dimensions
  •    -  Operating pressure up to 350 bar
  •    -  Excellent price/performance ratio
  •    -  Elimination of potential leakage between sections
  •    -  Easy maintenance


Technical Data

Type Number of spools d’axes Max. inlet pressure (P) bar Max. work port press. (A/B) bar Max. tank pressure bar Data sheet
HDM140 1 40 250 300 HDM140_200-P-991210-en
HDM11P 2 - 6 45 250 300 HDM11P_200-P-991210-en
HDM11S 1 - 6 45 250 300 HDM11S_200-P-991210-en
HDM11S/3PQ 3 45 250 300 HDM11S3PQ_200-P-991229-en
HDM15/2 2 - 10 60 250 300 HDM_HDS15_200-P-991228-en
HDM18 1 - 4 70 300 350 HDM18_200-P-991210-en
HDM19WL 3 - 10 80 250 300 HDM19WLEH_200-P-991243-en
HDM19EH 3 80 290 300 HDM19WLEH_200-P-991243-en
HDM25 1 - 2 100 250 300 HDM25_200-P-991210-en
  • Fluid temperature: from -20 to + 80°C
  • Viscosity operating range: from 15 to 75 mm²/s (cSt)
  • Max contamination level : 21/19/16 - ISO 4406:1999 (NAS 1638 class 10)
  • Max contamination level for electro-hydraulic applications: 20/18/15 - ISO 4406:1999 (NAS 1638 class 9)

 

Models

  •    -  With manual lever control, 2-spool combi-lever, flexible cable
  •    -  With spool-activated microswitch
  •    -  With ON-OFF solenoid operation
  •    -  With hydraulic, pneumatic, proportional hydraulic and electro-hydraulic operation
  •    -  With mechanical-release check valves in A/B ports
  •    -  With anti-shock and anti-cavitation relief valves in A/B ports


Applications

  •    -  Tractors
  •    -  Agricultural machines
  •    -  Wheel loaders  
  •    -  Front loaders
  •    -  Lift trucks
  •    -  Log splitters
  •    -  Truck-mounted cranes  
  •    -  Back-hoes
  •    -  Construction machinery