DBET‑50 Proportional Pressure Valve
Product Overview
DBET‑50 is a direct‑operated poppet‑type electro‑hydraulic proportional relief Hydraulic valve, widely used for stepless remote pressure limiting and electronic pressure setting in industrial hydraulic system and automated industrial Machine.
This pilot‑control proportional Hydraulic valve adopts conical seat structure and requires external drive amplifier. It converts analog electrical control signals into infinitely‑variable maximum system pressure, realizing continuous electronic pressure adjustment for the main circuit of your hydraulic system. Featuring good linearity and low hysteresis, it provides reliable over‑pressure protection and flexible multi‑pressure setting for hydraulic circuits. It is an ideal pressure‑control component for hydraulic power‑packs, injection‑molding machinery, hydraulic test‑benches and various hydraulic‑driven Machine.
Technical Specifications
‑ Model: DBET‑50
‑ Product Type: Direct‑operated poppet‑type electro‑hydraulic proportional relief Hydraulic valve, external amplifier drive
‑ Nominal Size: NG6
‑ Maximum working pressure: 315 bar
‑ Adjustable pressure range: 0‑50 / 0‑100 / 0‑200 / 0‑315 bar optional
‑ Rated pilot flow: 0.7‑2 L/min
‑ Mounting form: Sub‑plate mounting, ISO 4401‑03‑02 standard dimension
‑ Solenoid: 24 VDC wet‑pin proportional solenoid
‑ Control mode: External amplifier, control signal 0‑10 V / 4‑20 mA
‑ Working medium: Anti‑wear hydraulic mineral oil for industrial hydraulic system
‑ Oil temperature range: ‑20℃ ~ +80℃
‑ Key Features: Compact poppet‑seat structure, remote pressure control, low hysteresis, built‑in safety pressure‑limiting function, fast response, stable performance for medium‑load hydraulic Machine
Working Principle
DBET‑50 proportional relief Hydraulic valve consists of proportional solenoid, poppet spool and spring assembly. After receiving electrical command signal, the proportional solenoid generates proportional thrust to act on the main spring. When system pressure inside the hydraulic system rises to the preset value, hydraulic force pushes the poppet spool away from the seat, opening the P‑to‑T passage and discharging excess pilot oil to limit maximum system pressure. Even under electronic failure condition, the valve can still provide safe maximum‑pressure protection for the hydraulic system.
Damaged proportional solenoid, poppet spool sticking or amplifier malfunction will cause pressure drift, unstable pressure limiting, over‑pressure or pressure‑setting failure of the Machine. Replacing a qualified DBET‑50 proportional pressure valve can restore accurate remote pressure‑limiting performance of your hydraulic circuit.
Core Advantages
1. Stepless electric remote pressure adjustment, greatly improving automation and flexible pressure‑setting capability of your hydraulic system.
2. Poppet‑seat direct‑operated structure delivers fast dynamic response, compact NG6 size, suitable for pilot‑control circuits of small‑and‑medium‑size Machine.
3. Built‑in safety pressure‑limiting function, maintains pressure protection under electronic fault condition, improving safety of the whole hydraulic system.
4. Standard ISO sub‑plate mounting, good interchangeability, convenient for upgrading or retrofitting existing hydraulic circuits.
5. Low‑hysteresis control characteristic, stable pressure‑limiting performance, suitable for frequent pressure‑adjustment working conditions of industrial Machine.
Application Range
DBET‑50 proportional relief Hydraulic valve is a core pilot‑pressure‑control spare‑part for industrial hydraulic system. It is widely applied to hydraulic power‑packs, hydraulic test‑benches, injection‑molding auxiliary equipment, packaging machinery, small‑and‑medium hydraulic presses and other hydraulic‑driven automated Machine. Suitable for hydraulic‑system integrators, equipment‑manufacturers, maintenance workshops and global spare‑parts distributors.
