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Description
- Size 16 … 32
- Component series 2X
- Maximum operating pressure 350 bar
- Maximum flow 400 l/min
Features
- Zero-pressure start-up and circulation of the pump
- Intended for direct mounting onto the SAE pressure port of the pump
- Low circulation pressure due to short distance
- Low compression volume for soft switching to depressurized circulation
- Quick pressure build-up
- Low noise level due to direct flange mounting at the pump
- CE conformity according to the Low-Voltage Directive 2014/35/EU for electrical voltages >50 VAC or >75VDC
- Solenoid coil as approved component with UR marking according to UL 906, edition 1982, optional
Product description
Pump safety block type DBAEA for variable displacement pumps type A10V.. (with proportional pressure relief valve)
In principle, the function corresponds to type DBA....
By means of the proportional pressure relief valve type DBETA-6X… (17), a pressure change is achieved at the control port X. The pressure change acts on the controller of the pump. The cover plate (4) is not required.
The pressure adjustment at the proportional pressure relief valve type DBETA only works if it is below the setting of the pressure limitation screw-in cartridge valve type DB 20 K.
The pump control is pressure-controlled. This way, linear and stable behavior as well as increased accuracy of pump adjustment can be achieved.
| 1) | Illustration rotated by 90° |
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | |
| DBA | EA | 2X | / | G24 | K4 |
| 01 | Pump safety block | DBA |
| 02 | With mounted proportional pressure relief valve (pressure-controlled) with integrated control electronics, DBETA-6X/… | EA |
| 03 | Size 16 | 15 |
| Size 25 | 25 | |
| Size 32 | 30 | |
| 04 | Without directional valve | no code |
| With mounted directional valve, normally closed | A | |
| With mounted directional valve, normally open | B | |
| Type of connection / SAE flange 1) | ||
| 05 | Standard flange (250 … 350 bar) | F |
| High-pressure flange (350 bar) | H | |
| Adjustment type for pressure adjustment 2) | ||
| 06 | Rotary knob | 1 |
| Sleeve with hexagon and protective cap | 2 | |
| Lockable rotary knob with scale | 3 3) | |
| Rotary knob with scale | 7 | |
| 07 | Without pressure switch | – |
| With mounted pressure switch type HED 8 OH… (connector according to DIN EN 175301-803, without mating connector), (data sheet 50061) | D 4) | |
| 08 | Component series 20 … 29 (20 … 29: unchanged installation and connection dimensions) | 2X |
| Pressure rating 6) | ||
| 09 | Set pressure up to 50 bar | 50 |
| Set pressure up to 100 bar | 100 | |
| Set pressure up to 200 bar | 200 | |
| Set pressure up to 250 bar (only NG32 and standard flange "F") | 250 | |
| Set pressure up to 315 bar | 315 | |
| Set pressure up to 350 bar | 350 | |
| 10 | Without additional pressure relief valve | no code |
| 11 | Standard version | no code |
| 12 | Without directional valve | no code |
| 13 | Direct voltage 24 V | G24 |
| 14 | Without manual override | no code |
| Electrical connection | ||
| 15 | Without mating connector; connector DIN EN 175301-803 | K4 4) |
| Interface electronics | ||
| 16 | Command value 0 … 10 V | A1 |
| Command value 4 … 20 mA | F1 | |
| Nozzle fitting | ||
| 17 | Fixed pumps | |
| Lateral channel closed, transverse channel open, pilot oil bore open; (standard for displacement pumps; pure DB-/DBW function) | no code | |
| Variable displacement pumps | ||
| Lateral channel closed, transverse channel open, pilot oil bore closed (e.g. for axial piston variable displacement pump type A4VSO140 with DRG controller) | A00 | |
| Nozzle Ø0.8 mm in lateral channel, transverse channel open; pilot oil bore closed (standard for control pumps with DFR1 or DFLR controller) | A08 5) | |
| Nozzle Ø1.0 mm in lateral channel, transverse channel open; pilot oil bore closed (for nozzle fitting of the block, refer to the circuit examples) | A10 5) | |
| Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data") | ||
| 18 | NBR seals | no code |
| FKM seals | V | |
| Type-examination procedure | ||
| 19 | Without type-examination procedure | no code |
| 20 | Standard solenoid coil | no code |
| 1) | Please observe pressure ratings and connection dimensions. |
| 2) | Adjustment type for pressure switch type HED 8 in brackets. |
| 3) | H-Key with material no. R900008158 is included in the scope of delivery. |
| 4) | Mating connectors, separate order, see "Accessories" |
| 5) | If used on variable displacement pumps with DFLR controllers, the nozzle at port X of the pump control must be removed. |
Technical data
general
| Size | 16 | 25 | 32 | ||||||
| Earth | with SAE flange | "F" | "H" | "F" | "H" | "F" | "H" | ||
| Pump safety block | DBAEA... | kg | 7 | 6.9 | 7 | 7.6 | |||
| Pressure switches | HED 8 | kg | 0.8 | ||||||
| Installation position | Any | ||||||||
| Ambient temperature range | NBR seals | °C | -20 … +50 | ||||||
| FKM seals | °C | -15 … +50 | |||||||
| Conformity | CE according to Low-Voltage Directive 2014/35/EU checked according to EN 60204-1:2006-01 and DIN VDE 0580, classified as component. | ||||||||
hydraulic
| Size | 16 | 25 | 32 | ||
| Maximum operating pressure | Port P | bar | 350 | ||
| Maximum counter pressure 1) | Port T | bar | 30 | ||
| Minimum set pressure | flow-dependent, see "characteristic curves" | ||||
| Maximum set pressure | bar | 50 100 200 250 315 350 | |||
| Maximum flow | l/min | 300 | 400 | ||
| Hydraulic fluid | see table "Hydraulic fluid" | ||||
| Hydraulic fluid temperature range | NBR seals | °C | -20 … +80 | ||
| FKM seals | °C | -15 … +80 | |||
| Viscosity range | mm²/s | 20 … 380 | |||
| preferably | mm²/s | 30 … 46 | |||
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2) | Class 20/18/15 | ||||
| 1) | Tank preloading (30 bar) to be added to the minimum set pressure. A short-time, static pressure of 300 bar is admissible. |
| 2) | 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. |
| Hydraulic fluid | Classification | Suitable sealing materials | Standards | Data sheet | |
| Mineral oils | HL, HLP | NBR, FKM | DIN 51524 | 90220 | |
| Bio-degradable | Insoluble in water | HEES | FKM | ISO 15380 | 90221 |
| Flame-resistant | Containing water | HFC (Fuchs: Hydrotherm 46M, Renosafe 500; | NBR | ISO 12922 | 90223 |
| Important information on hydraulic fluids:
| |||||
(For applications outside these values, please consult us!)
Diagrams/characteristic curves
load errorSymbols/Circuit diagrams
load errorDimensions
load errorInformation
load errorDownloads
 | Pump safety block Data Sheet | RE25891 | 2021-08-01 | English, United States | PDF | 1.3MB Product Groups: Pressure relief valves Type DBA, DBAW, DBAE, DBAEE, DBAEA |
| Pump safety block Manual | RE25891-B | 2021-10-01 | English | PDF | 986k Product Groups: Industrial Hydraulics Type DBA...2X/...E |
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