Pressure relief valves DB700/1000

The new pressure relief valve type DB is available in 700- and 1000bar versions both as a screw-in cartridge and as an modular valve with one cartridge. On request, it can be supplied in preset condition. The radial sealing valve is excellent for demanding applications in dynamic pressure systems, workholding & fixturing, hydraulic tools as well as many others.

Max. operating pressure 1000 bar
Max. flow rate 25 l/min
Porting NG 6

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Features Advantages
Directly operated Stable control behaviour thanks to damping piston
Seat construction High degree of pressure stability
As cardridge and modular valve with one cardridge Pre-set valves on request
The sytem pressure can be set to the required pressure via the adjusting spindle Flat characteristics
Fixing of the pre-set maximum pressure by lock nut Safe function
Compression damping DB can be fully relieved
The spring of the DB cannot be screwed onto the block  

Applications

  • Pressure limination in a dynamic pressure system
  • Clamping technology & fixture construction
  • Hydraulic tools
  • Fire fighting and rescue equipment
  • Energy & Power Generation
  • Construction & Recycling
  • Lifting and transport systems

Technical data

Hydraulic fluid mineral oil according to DIN 51524 (other fluids on request)
Fluid temperature range – 20 to 80 °C
Ambient temperature range – 30 to 50 °C
Viscosity range 5 to 400 mm²/s
Porting 1000 bar: NG 6 according to Bieri Standard
700 bar: NG 6 DIN 24340/ISO4401/CETOP RP 121 H
Max. operating pressure connection P, A, B 1000 bar
Max. operating pressure connection T 100 bar, 1000 bar with back pressure compensated version
Max. flow rate 1000 bar: 16 l/min
700 bar: 25 l/min
Filtration (recommentation) according to NAS 1638, class 6 or ISO / DIN 4406 17/15/12
Weight see overview technical data sheet
Material modular subplate: steel zinc-nickel coated
cartridge body: stainless steel
sealing cap: plastic