| Material number | Designation |
| R900049822 | PRESSURE RELIEF VALVE DBDS20K1X/25-15V |
| R900050807 | PRESSURE RELIEF VALVE DBDS20K1X/50-30 |
| R900051071 | PRESSURE RELIEF VALVE DBDS20K1X/50P30 |
| R900052357 | PRESSURE RELIEF VALVE DBDS 20 K1X/25P16 |
| R900052943 | PRESSURE RELIEF VALVE DBDS20K1X/200-150 |
| R900053043 | PRESSURE RELIEF VALVE DBDS20K1X/315-210 |
| R900068383 | PRESSURE RELIEF VALVE DBDS20K1X/315-250 |
| R900068384 | PRESSURE RELIEF VALVE DBDS20K1X/315-300 |
| R900075188 | PRESSURE RELIEF VALVE DBDS20K1X/315-220 |
| R900075902 | PRESSURE RELIEF VALVE DBDS20K1X/315-270 |
| R900075915 | PRESSURE RELIEF VALVE DBDS20K1X/25-16V |
| R900078039 | PRESSURE RELIEF VALVE DBDS20K1X/315-280 |
| R900078769 | PRESSURE RELIEF VALVE DBDS20K1X/315P300 |
| R900078770 | PRESSURE RELIEF VALVE DBDS20K1X/400P350 |
| R900085135 | PRESSURE RELIEF VALVE DBDS20K1X/25-10 |
| R900088556 | PRESSURE RELIEF VALVE DBDS20K1X/25P15 |
| R900205483 | PRESSURE RELIEF VALVE DBDS20K1X/100-055 |
| R900206098 | PRESSURE RELIEF VALVE DBDS20K1X/315-205 |
| R900206543 | PRESSURE RELIEF VALVE DBDS20K1X/25-15 |
| R900210886 | PRESSURE RELIEF VALVE DBDS20K1X/400-380 |
| R900211321 | PRESSURE RELIEF VALVE DBDS20K1X/200-110 |
| R900212702 | PRESSURE RELIEF VALVE DBDS20K1X/25-20 |
| R900220903 | PRESSURE RELIEF VALVE DBDS20K1X/315P315 |
| R900222984 | PRESSURE RELIEF VALVE DBDS20K1X/200P190 |
| R900224724 | PRESSURE RELIEF VALVE DBDS20K1X/200-200 |
| R900225235 | PRESSURE RELIEF VALVE DBDS20K1X/400-330 |
| R900230310 | PRESSURE RELIEF VALVE DBDS20K1X/100-080 |
| R900231007 | PRESSURE RELIEF VALVE DBDS20K1X/200P120 |
| R900243501 | PRESSURE RELIEF VALVE DBDS20K1X/315-275 |
| R900244973 | PRESSURE RELIEF VALVE DBDS20P1X/200-180 |
| R900245023 | PRESSURE RELIEF VALVE DBDS20K1X/200-180 |
| R900245024 | PRESSURE RELIEF VALVE DBDS20K1X/200-150 |
| R900345502 | PRESSURE RELIEF VALVE DBDS20G1X/200/12 |
| R900346720 | PRESSURE RELIEF VALVE DBDS20G1X/100/12 |
| R900353304 | PRESSURE RELIEF VALVE DBDS20G1X/50J3 |
| R900356476 | PRESSURE RELIEF VALVE DBDS20G1X/315/12 |
| R900367037 | PRESSURE RELIEF VALVE DBDS20G1X/25/12 |
| R900367433 | PRESSURE RELIEF VALVE DBDS20G1X/400/12 |
| R900368174 | PRESSURE RELIEF VALVE DBDS 20 G1X/315VB |
| R900372427 | PRESSURE RELIEF VALVE DBDS 20 P1X/315VB |
| R900379694 | PRESSURE RELIEF VALVE DBDS20G1X/50/12 |
| R900391878 | PRESSURE RELIEF VALVE DBDS20G1X/25J3 |
| R900393795 | PRESSURE RELIEF VALVE DBDS20P1X/315J3 |
| R900394463 | PRESSURE RELIEF VALVE DBDS20P1X/315/12 |
| R900395219 | PRESSURE RELIEF VALVE DBDS20P1X/25V |
| R900397459 | PRESSURE RELIEF VALVE DBDS20G1X/200V/12 |
| R900407688 | PRESSURE RELIEF VALVE DBDS 20 G1X/315 W1 |
| R900422542 | PRESSURE RELIEF VALVE DBDS20K1X/25 |
| R900422544 | PRESSURE RELIEF VALVE DBDS20G1X/25 |
| R900424082 | PRESSURE RELIEF VALVE DBDS20K1X/315V |
| R900424170 | PRESSURE RELIEF VALVE DBDS20G1X/100 |
| R900424171 | PRESSURE RELIEF VALVE DBDS20G1X/100V |
| R900424172 | PRESSURE RELIEF VALVE DBDS20G1X/200 |
| R900424173 | PRESSURE RELIEF VALVE DBDS20G1X/200V |
| R900424174 | PRESSURE RELIEF VALVE DBDS20G1X/315 |
| R900424175 | PRESSURE RELIEF VALVE DBDS20G1X/400 |
| R900424203 | PRESSURE RELIEF VALVE DBDS20K1X/400 |
| R900424204 | PRESSURE RELIEF VALVE DBDS20K1X/400V |
| R900424205 | PRESSURE RELIEF VALVE DBDS20K1X/50 |
| R900424267 | PRESSURE RELIEF VALVE DBDS20K1X/100 |
| R900424268 | PRESSURE RELIEF VALVE DBDS20K1X/100V |
| R900424269 | PRESSURE RELIEF VALVE DBDS20K1X/200 |
| R900424270 | PRESSURE RELIEF VALVE DBDS20K1X/200V |
| R900424271 | PRESSURE RELIEF VALVE DBDS20K1X/315 |
| R900424272 | PRESSURE RELIEF VALVE DBDS20P1X/50 |
| R900424273 | PRESSURE RELIEF VALVE DBDS20K1X/50V |
| R900424274 | PRESSURE RELIEF VALVE DBDS20P1X/100 |
| R900424275 | PRESSURE RELIEF VALVE DBDS20P1X/100V |
| R900424276 | PRESSURE RELIEF VALVE DBDS20G1X/50 |
| R900424277 | PRESSURE RELIEF VALVE DBDS20P1X/200 |
| R900424278 | PRESSURE RELIEF VALVE DBDS20P1X/315 |
| R900424279 | PRESSURE RELIEF VALVE DBDS20P1X/400 |
| R900426153 | PRESSURE RELIEF VALVE DBDS 20 G1X/60B |
| R900427240 | PRESSURE RELIEF VALVE DBDS 20 G1X/210B |
| R900427249 | PRESSURE RELIEF VALVE DBDS 20 G1X/170B |
| R900427602 | PRESSURE RELIEF VALVE DBDS 20 G1X/315B |
| R900427604 | PRESSURE RELIEF VALVE DBDS20G1X/50V |
| R900428381 | PRESSURE RELIEF VALVE DBDS 20 G1X/110B |
| R900428612 | PRESSURE RELIEF VALVE DBDS20G1X/400V/12 |
| R900428977 | PRESSURE RELIEF VALVE DBDS 20 P1X/400B |
| R900429303 | PRESSURE RELIEF VALVE DBDS 20 P1X/110B |
| R900429687 | PRESSURE RELIEF VALVE DBDS 20 P1X/315B |
| R900430311 | PRESSURE RELIEF VALVE DBDS20P1X/25 |
| R900430920 | PRESSURE RELIEF VALVE DBDS 20 G1X/210VB |
| R900434536 | PRESSURE RELIEF VALVE DBDS 20 P1X/210B |
| R900437810 | PRESSURE RELIEF VALVE DBDS20P1X/315V |
| R900438105 | PRESSURE RELIEF VALVE DBDS20G1X/315V |
| R900439957 | PRESSURE RELIEF VALVE DBDS20P1X/50V |
| R900440196 | PRESSURE RELIEF VALVE DBDS 20 P1X/170B |
| R900446431 | PRESSURE RELIEF VALVE DBDS 20 G1X/400B |
| R900446990 | PRESSURE RELIEF VALVE DBDS20G1X/315J3 |
| R900447684 | PRESSURE RELIEF VALVE DBDS20P1X/200V |
| R900452888 | PRESSURE RELIEF VALVE DBDS 20 G1X/25 W1 |
| R900462896 | PRESSURE RELIEF VALVE DBDS20G1X/25V |
| R900464875 | PRESSURE RELIEF VALVE DBDS20P1X/400V |
| R900474243 | PRESSURE RELIEF VALVE DBDS20K1X/25V |
| R900474802 | PRESSURE RELIEF VALVE DBDS 20 P1X/315/5 |
| R900476384 | PRESSURE RELIEF VALVE DBDS 20 P1X/200 W1 |
| R900478766 | PRESSURE RELIEF VALVE DBDS20G1X/400V |
| R900495149 | PRESSURE RELIEF VALVE DBDS 20 G1X/100 W1 |
Technical data
| Size | 6 | 8 | 10 | 15 | 20 | 25 | 30 | ||
| Weight | See dimensions | ||||||||
| Installation position | any | ||||||||
| Ambient temperature range | NBR seals | °C | -30 … +80 | ||||||
| FKM seals | °C | -15 … +80 | |||||||
| Minimum stability of the housing materials | Housing materials are to be selected so that there is sufficient safety for all imaginable operating conditions (e.g. with regard to pressure resistance, thread stripping strengths and tightening torques). | ||||||||
hydraulic
| Size | 6 | 8 | 10 | 15 | 20 | 25 | 30 | ||
| Maximum operating pressure | Inlet | bar | 400 | 630 | 400 | 315 | |||
| Outlet | bar | 315 | |||||||
| Maximum flow (standard valves) | See characteristic curves | ||||||||
| Hydraulic fluid | see table | ||||||||
| Hydraulic fluid temperature range | NBR seals | °C | -30 … +80 | ||||||
| FKM seals | °C | -15 … +80 | |||||||
| Viscosity range | mm²/s | 10 … 800 | |||||||
| Maximum admissible degree of contamination of the hydraulic fluid 1) | Class 20/18/15 according to ISO 4406 (c) | ||||||||
| 1) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter. |
| Hydraulic fluid | Classification | Suitable sealing materials | Standards | Data sheet | |
| Mineral oils | HL, HLP, HLPD, HVLP, HVLPD | NBR, FKM | DIN 51524 | 90220 | |
| Bio-degradable | Insoluble in water | HETG | NBR, FKM | ISO 15380 | 90221 |
| HEEG | FKM | ||||
| Soluble in water | HEPG | FKM | ISO 15380 | ||
| Important information on hydraulic fluids:
| |||||
Notice:
Hydraulic counter pressures in port T add 1:1 to the response pressure of the valve set at the adjustment type.
Example:
- Pressure adjustment of the valve due to spring pretensioning (see "Product description" item 2) pspring= 200 bar
- Hydraulic counter pressure in port T: phydraulic = 50 bar
- ⇒ Response pressure = pspring + phydraulic = 250 bar
Deviating technical data: Type-examination tested safety valves type DBD
(Component series 1X, according to Pressure Equipment Directive 2014/68/EU)
general
| Ambient temperature range | °C | -10 … +80 | ||||||
hydraulic
|
Set response pressure | see last figure of the component marking | |||||||
| Maximum counter pressure in the discharge line | See characteristic curves "Counter pressure in the discharge line” | |||||||
| Maximum flow | The last but one figure of the component marking attached at the safety valve is always binding. For valve types which have a variable maximum flow depending on the response pressure, the discharge coefficient is specified at this place. | |||||||
| Hydraulic fluid | Hydraulic fluids according to DIN 51524: Hydraulic oils HL and HLP are suitable for safety valves with NBR or FKM seals. | |||||||
| Hydraulic fluid temperature range | -10 … +60 °C | |||||||
| Viscosity range | 12 … 230 mm²/s | |||||||