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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