Rexroth DBDS Series Pressure Relief Valve

Bosch Rexroth DBDS pressure relief valve

Description:

The Rexroth DBDS series pressure relief valve is a direct-acting relief valve designed for reliable pressure limitation and protection in hydraulic systems. As a screw-in cartridge or subplate-mounted valve, the DBDS maintains system safety by diverting excess fluid when pressure exceeds a predetermined setting. Its compact design and robust construction make it suitable for a wide range of industrial and mobile hydraulic applications — from machinery protection to system stability under dynamic conditions.

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Rexroth Pressure Relief Valve DBDS Description

Advantages of Rexroth DBDS Series Pressure Relief Valve

  • Reliable Pressure Limitation & Safety: Direct-acting design ensures rapid opening to divert excess fluid, protecting hydraulic components from overpressure damage.

  • Wide Pressure & Flow Range: Supports a broad range of operating pressures (up to 630 bar) and high flow rates (up to 330 l/min) — making it suitable for many hydraulic systems from light to heavy duty.

  • Flexible Installation & Integration: As a screw-in cartridge or subplate valve with compact footprint, DBDS can be easily integrated into new or existing hydraulic systems.

  • Adjustable & Versatile: Multiple types of pressure adjustment mechanisms (knob, cap, hand-wheel, lockable) offer flexibility for different application requirements.

  • Durable & Industry-Ready: Robust construction, standard sealing materials, and compatibility with standard hydraulic fluids ensure long service life across industrial environments.

Parameter Specification / Details
Product Type Pressure Relief Valve (Direct-acting)
Series / Type DBDS (also DBD.K / DBDS..K1X variants)
Manufacturer Bosch Rexroth
Operating Principle Direct-acting seat/poppet (or ball) type valve — opens when system pressure exceeds spring-set limit.
Pressure Rating / Range 25 … 400 bar (poppet seat version) or up to 630 bar (ball seat version, certain NG10 sizes)
Maximum Flow Rate Up to 330 l/min (varies by size / variant)
Connection / Mounting Types Screw-in cartridge for threaded connection; subplate mounting options available
Adjustment Options Pressure set via: sleeve with hexagon & protective cap; rotary knob; hand wheel; lockable rotary knob.
Sealing Materials / Fluid Compatibility Standard NBR (or optionally FKM) seals; compatible with common hydraulic fluids (e.g. HLP according to DIN 51524)
Ambient / Operating Temperature Range –30 °C to +80 °C (with NBR seals); –15 °C to +80 °C (with FKM seals)
Installation Position Any / any orientation allowed
Valve Size Range (NG) NG 6, 8, 10, 15, 20, 25, 30 depending on variant.
Typical Weight Range Varies with size — see official datasheet weight tables.
Applications Pressure limitation and safety relief in hydraulic circuits — industrial machinery, mobile hydraulics, system protection, overload protection, general hydraulic systems.