This document describes the features and characteristics of the pressure relief valve produced by Bosch Rexroth, including installation methods, adjustment elements, and pressure stages.
The document describes the DB and DBW series pilot‑operated pressure relief valves used for pressure limitation and, for DBW, solenoid‑operated unloading in hydraulic systems. It includes features, ordering information, technical specifications, characteristic curves, dimensions, and safety notes.
Key features include multiple adjustment elements, optional solenoid types, and optional switching shock damping for DBW. The manual lists maximum operating pressure, flow rates, size options, and environmental limits for proper installation and maintenance.
| Maximum operating pressure | 350 bar |
|---|---|
| Maximum flow | 650 L/min |
| Available sizes | 10 to 32 |
| Pressure setting range | 50, 100, 200, 315, 350 bar |
| Ambient temperature range (DB) | -30 to +80 °C (NBR seals), -15 to +80 °C (FKM seals) |
The valves can be set to 50, 100, 200, 315, or 350 bar depending on the model.
The maximum flow rate is up to 650 L/min.
Options include a rotary knob, a sleeve with hexagon and protective cap, a lockable rotary knob with scale, and a rotary knob with scale.