-For base plate installation
-The mounting surface conforms to din24340 type E and ISO 6264
-Used for threaded connection and bottom plate installation
-5 pressure ranges
-The unloading is operated by means of the electromagnetic directional valve installed on it
-Four kinds of regulation forms
·Knob
·Adjusting bolt with protective cover
·Adjustable locking knob with scale
·Dial with scale
-Optional switching time delay (DBW only)
| Fixing position | Optional | ||||||
| Weight | DB…10 | DB…15 | DB…20 | DB…25 | DB…30 | ||
| Sub-plate mounting | DB kg | Approx.3 | – | Approx.3.9 | – | Approx.5.3 | |
| DBW kg | Approx.4.5 | – | Approx.5.4 | – | Approx.6.8 | ||
| DBC kg | Approx.1.2(Type DBWC add 1.5)kg | ||||||
| DBC10 or 30 kg | Approx.1.5(Type DBWC10 and 30 add 1.5)kg | ||||||
| Threaded connection | DB..G.. Kg | Approx.5.3 | Approx.5.2 | Approx.5.1 | Approx.5.9 | Approx.5.8 | |
| DBW..G.. Kg | Approx.6.8 | Approx.6.7 | Approx.6.6 | Approx.7.4 | Approx.7.3 | ||
| Switching shock damping | kg | Approx.0.6 | |||||
| Techinical parameters of directional valve | Refer to the solenoid valvetype WE6,normally close use 3WE6A9, normally open use3WE6B9 | ||||||
| Fluid | Mineral oil – suitable for NRB and FRMseal | ||||||
| phosphate ester-suitable for FKM seal | |||||||
| Fluid temperature range ℃ | -30 to +80 (NRB seal) | ||||||
| -20 to +80 (FKM seal) | |||||||
| viscosity range mm2/s | 10 to 800 | ||||||
| Degree of contamination | Maximum permissible degree of fluid contamination:Class 9. NAS 1638 or 20/18/15 , ISO4406 | ||||||
| Max.operating pressure | Port A,B,X,P bar | 350 | |||||
| Port T (DB) bar | 315 | ||||||
| Max. back pressure | Port Y DB bar | 315 | |||||
| Port Y or T DBW bar | AC up to 160, DC up to 210 | ||||||
| Max. setting pressure | bar | 50;100;200;315;350 | |||||
| Min. setting pressure | bar | Interrelated with Q(refer to the curve) | |||||
| Sizes | 10 | 15 | 20 | 25 | 30 | ||
| Max. flow-rate | sub-plate mounting L/min | 250 | – | 500 | – | 650 | |
| threaded connection L/min | 250 | 500 | 500 | 500 | 650 | ||
ZDB/Z2DB… Pilot Operated Pressure Relief Valve