This proportional pressure relief valve DBETR regulates pressure in proportion to the electrical command value. DBTR valve is widely used in closed systems with remote control system pressure. Huade’s DBETR valves use the same standards as Rexroth products. This proportional pressure valve DBETR can replace products in the same series, and the price is relatively affordable.
| Hydraulic | |||
| Max. settable pressure(MPa) | Pressure stage 2.5 MPa | 2.5 | |
| Pressure stage 8.0 MPa | 8 | ||
| Pressure stage 18.0 MPa | 18 | ||
| Pressure stage 31.5 MPa | 31.5 | ||
| Min. settable pressure (MPa) | (see characteristic curves) | ||
| Max.Operating pressure (MPa) | port T (with pressure adjusting) | 0.2 | |
| port T(without pressure adjusting) | 10 | ||
| port P | 31.5 | ||
| Max.flow (L/min) | Pressure stage 25 | 10 | |
| Pressure stage 80 | 3 | ||
| Pressure stage 180 | 3 | ||
| Pressure stage 315 | 2 | ||
| Degree of contamination (μm) | ≤20 (recommendation 10) | ||
| Hysteresis (%) | < 1 of max. settable pressure | ||
| Repeatability (%) | < 0.5 of max.settable pressure | ||
| Linearity (%) | 180; Pressure stage from 3 to 18 MPa | ≤ 1.5 of max.settable pressure | |
| 315; Pressure stage from 6 to 31.5MPa | |||
| Typical variation (%) | Valve | ± 3 of max. settable pressure | |
| Electrical control | ＜0.5 | ||
| Stepped response 0 to 100% (ms) | Response time(Pmin-Pmax) | Response time(Pmax-Pmin) | |
| Pressure stage 2.5 and 18MPa 0 to100 | 100 | 50 | |
| Pressure stage 31.5MPa 0 to100 | 150 | 100 | |
| Pressure fluid | Mineral oil(for NBR seal),Phosphate ester (for FPM seal) | ||
| Viscosity range (mm2/s) | 2.8 to 380 | ||
| Pressure fluid temperature range (°C) | -20 to+70 | ||
| Installation position | optional | ||
| Weight (kg) | 4 | ||
| Electrical | ||||
| Amplifier associated | VT-5003S30 | |||
| Supply voltage | DC | |||
| Coil resistance (Ω) | Cold value at 20 °C | 10 | ||
| Max. warm value | 13.9 | |||
| (Working state) Duty | Continuous | |||
| Pressure fluid temperature (°C) | +50 | |||
| Amplifier voltage | commute completely | 24±10% | ||
| commute three electrical source | 24 to 35 | |||
| Max. power consumption (VA) | 50 | |||
| Coil resistance at 20°C (Ω) | 1 | 11 | 111 | |
| 56 | 56 | 112 | ||
| Inductivity (transducer) (mH) | 6 to 8 | |||
| Oscillator frequency (transducer) (KHz) | 2.5 | |||
| Protection to DIN 40 050 | IP65 | |||
Features:
▶Low hysteresis
▶Good repeatability,
▶Electrical closed loop position control of spring pre-tension
▶Proportional solenoid actuation with inductive position transducer (pressure balanced)
▶Valve and electronic control from one source
Application:
Proportional pressure relief valve DBETR is widely used in various fields such as light industry, machine tools, metallurgy, etc.
The valve consists basically of a housing (1), proportional solenoid (2) with inductive posistional transducer (3),valve seat (4) and valve poppet(5)
Pressure is set by adjusting the command value potentiometer (0 to 9 V). Adjusting the command value causes tensioning of the compression spring via the electronic controls and the proportional solenoid (2). Tensioning of the compression spring (6), i.e. the position of the spring plate (7), is determined by the inductive positional transducer(3). Any deviations from the command value are corrected by the closed loop positional control.
The use of this principle eliminates the effect of solenoid friction.
Advantages:
- Low hysteresis
- Good repeatability
Symbols of Proportional Pressure Relief Valve DBETR
Address
No. 27, Yangsha Road, Huilong Town, Qidong City, Jiangsu Province, China
Tel
