Pilot Operated - Pressure Relief Valves

For safer, leak-free operation at up to 315 bar, the Bosch Rexroth range of pressure relief valves provides fully-certified standards and quality, making your hydraulics system more reliable.


View detailed specifications below

Pilot Operated Pressure Relief Valves specifications

Pressure Relief Valve | Type (Z)DBT/DZT (NG6)

  • Size: 6
  • Component series: 1X
  • Maximum operating pressure: 315 bar
  • Maximum flow: 3 l/min

Features

  • Directly operated valve for the limitation of the system pressure
  • Application as pilot control valve
  • For plate and control panel mounting

Pressure Relief Valve | Type DB.K (NG6 and NG10)

  • Nominal sizes: 6 and 10
  • Component series: 4X
  • Maximum operating pressure: 315 bar
  • Maximum flow: 60 l/min (NS6) 100 l/min (NS10)

Features

  • Cartridge valve
  • 4 pressure stages
  • 4 adjustment types, optional:
    • Rotary knob
    • Sleeve with hexagon and protective cap
    • Lockable knob with scale
    • Rotary knob with scale

Pressure Relief Valve | Type Z2DB…VD (Sizes 16 and 22)

  • Nominal sizes: 16 and 22
  • Maximum operating pressure: 315 bar
  • Maximum flow: 200/400 L/min

Features

  • Sandwich plate valve
  • Mounting pattern to DIN 24 340 Form A, ISO 4401 and CETOP–RP 121 H
  • 4 pressure stages
  • 2 setting elements optionally:
    • Sleeve with hexagonal recess and protective cap
    • Lockable rotary knob

Pressure Relief Valve | Type ZDB and Z2DB (NG10)

  • Size: 10
  • Component series: 4X
  • Maximum operating pressure: 315 bar [4600 psi]
  • Maximum flow: 100 l/min [26.4 US gpm]

Features

  • Sandwich plate valve
  • Porting pattern according to ISO 4401-05-04-0-05and NFPA T3.5.1 R2-2002 D05
  • 4 pressure ratings
  • 6 circuit options
  • With 1 or 2 pressure valve cartridges
  • 4 adjustment types, optionally:
    • Rotary knob
    • Bushing with hexagon and protective cap
    • Lockable rotary knob with scale
    • Rotary knob with scale

Pressure Relief Valve | Types DB and DBW (Sizes 10 to 32)

  • Sizes: 10 to 32
  • Component series: 5X
  • Maximum operating pressure: 350 bar
  • Maximum flow: 650 L/min

Features

  • For subplate mounting: Porting pattern to ISO 6264-AR-06-2-A (size 10), ISO 6264-AS-08-2-A (size 25),
  • ISO 6264-AT-10-2–A (size 32)
  • For threaded connection
  • For installation into manifolds
  • 5 pressure stages
  • Solenoid operated unloading via built-on directional spool valve or directional poppet valve
  • Heavy duty solenoid
  • Explosion-protected solenoid (on enquiry)
  • Switching shock damping, optional (only type DBW)
  • 4 adjustment elements, optionally:
    • Rotary knob
    • Sleeve with hexagon and protective cap
    • Lockable rotary knob with scale
    • Rotary knob with scale

Pressure Relief Valve | Types DB(W)…W65 (Sizes 10 and 25)

  • Nominal sizes: 10 and 25
  • Series: 1X; 4X
  • Max. operating pressure: 350 bar
  • Max. flow: 400 L/min

Features

  • For subplate mounting: Porting pattern to DIN 24 340 form E, ISO 6264 -AR-06-2-A (NS 10), ISO 6264 -AR-08-2-A (NS 25) and CETOP-RP 121 H,
  • For threaded connections
  • As a cartridge valve
  • 5 pressure stages
  • Solenoid operated unloading via a built-on directional valve (only with threaded connections)
  • 4 adjustment elements, optionally:
    • Rotary knob
    • Sleeve with hexagon and protective cap
    • Lockable rotary knob with scale
    • Rotary knob with scale

Pressure Relief Valve | Types ZDB and Z2DB (NG6)

  • Nominal size: 6
  • Component series: 4X
  • Maximum operating pressure: 315 bar
  • Maximum flow: 60 L/min

Features

  • Sandwich plate valve
  • Connection location to DIN 24340 form A (without locating pin), (standard)
  • Connection location to ISO 4401-03-02-0-94 (with locating pin), (ordering code .../60)
  • 4 pressure stages
  • 5 circuit options
  • With 1 or 2 pressure valve cartridges
  • 4 adjustment elements, optionally:
    • Rotary knob
    • Sleeve with hexagon and protective cap
    • Lockable rotary knob with scale
    • Rotary knob with scale

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