Compared with explosion-proof pressure relief valve DBE, valve DBEM series is more suitable for scenarios with high dynamic response and intelligent requirements. Working pressure range 50~315 bar, flow rate up to 600 L/min (DBEM 32 model). The working voltage is DC 24V. Explosion-proof pressure relief valve DBEM adopts an integrated design, with an optional integrated digital amplifier (OBE module), simplified wiring, and a plug-in valve core structure, so there is no need to disassemble the pipeline for maintenance.
| Fluid | Mineral oil suitable for NBR and FKM seal |
| Phosphate ester for FKM seal | |
| Fluid temperature range ℃ | -30 to +80 (NBR seal) |
| -20 to +80 (FKM seal) | |
| Viscosity range mm2/s | 2.8 to 380 |
| Linearity | ±3.5% |
| Repeatability | ＜±2% |
| Electrica | |
| Power source | DC |
| Min.solenoid current mA | 100 |
| Max.solenoid current mA | 800 |
| Coil resistance | 19.5Ω at 20℃, Max.warm value:28.8Ω |
| Working status | Continuous |
| Max.working environmental temperature | +50℃ |
| Insulation to DIN 40 050 | IP65 |
Features:
-Sub-plate mounting:
- Porting pattern to DIN 24 340 form E and ISO 6264
- For installation in manifolds
- 4 pressure ratings
- Max. pressure limitation , optional
- Amplifier type VT-2000 (must be ordered separately)
Application:
Explosion-proof pressure relief valve DBEM is widely used in oil and gas industry, chemical and pharmaceutical explosion-proof systems, coal mines and underground equipment, ships and marine engineering.
Example:
Explosion-proof PLC→DBEM valve (integrated OBE amplifier)→ Explosion-proof pressure sensor
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PROFIBUS-DP bus
Explosion-proof pressure relief valve DBEM is pilot operated pressure relief valve. It is used to continuously set the pressure in hydraulic systems by electrical signal.
Basically these valves consist of a pilot valve (1) with proportional solenoid (2) and the main valve (3) with main spool insert (4).
Type HD-DBE...FB
The pressure limit is in relation to the electrical current value and set by the proportional solenoid (2). The system pressure is applied to the main spool(4). At the same time the pressure is applied to the spring loaded side of the main spool (4) and the pilot poppet (6) via orifice (5) at the pilot valve (1). If the hydraulic force exceeds the solenoid force, the pilot poppet (6) opens. Pilot fluid can flow back to tank and pressure drop caused by the orifices effects the main spool (4). Then main spool (4) opens the channel from pump to tank.
TyPe HD-DBEM...FB
Optionally the valve can be supplied with an additional spring loaded pilot control valve (7) for maximum pressure safety (redundant pressure safety).
Symbol of Explosion-proof Pressure Relief Valve DBEM
Address
No. 27, Yangsha Road, Huilong Town, Qidong City, Jiangsu Province, China
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