DRE(M)(E)-6X Proportional Pressure Valve
Product Overview
DRE(M)(E)-6X series is a pilot‑operated electro‑hydraulic proportional pressure‑reducing Hydraulic valve, widely used for infinitely‑variable, electric remote pressure adjustment of branch circuits in industrial hydraulic system and automated heavy‑duty Machine.
This proportional Hydraulic valve includes four variants: DRE‑6X (external amplifier), DREM‑6X (with built‑in check‑valve), DREE‑6X (integrated onboard electronics OBE), DREME‑6X (check‑valve + built‑in amplifier). It converts analog electrical signals into stable adjustable secondary pressure, lowering high‑pressure oil from main circuit to required working pressure for downstream actuators. Featuring low hysteresis, excellent linearity and pressure‑holding stability, it provides independent pressure control for multi‑loop hydraulic system, which is an ideal pressure‑control component for hydraulic presses, injection molding machines, metallurgical equipment and other hydraulic‑driven industrial Machine.
Technical Specifications
‑ Model Series: DRE‑6X, DREM‑6X, DREE‑6X, DREME‑6X
‑ Product Type: Pilot‑operated electro‑hydraulic proportional pressure‑reducing Hydraulic valve
‑ Nominal Sizes: NG10, NG25
‑ Max inlet working pressure: 315 bar
‑ Adjustable secondary pressure range: 0‑50 / 0‑100 / 0‑200 / 0‑315 bar optional
‑ Rated flow range: 200‑300 L/min
‑ Mounting: Sub‑plate mounting, ISO 5781 standard installation dimension
‑ Solenoid: 24 VDC wet‑pin proportional solenoid, detachable rotatable coil
‑ Control Mode:
• DRE‑6X / DREM‑6X: External amplifier drive
• DREE‑6X / DREME‑6X: Built‑in onboard electronics (OBE), 24VDC, 0‑10V / 4‑20mA signal
‑ Optional function: Built‑in one‑way check‑valve (‑M type), maximum‑pressure limiting protection
‑ Working medium: Anti‑wear hydraulic mineral oil for industrial hydraulic system
‑ Oil temperature: ‑20℃ ~ +80℃
‑ Key Features: Large‑flow capacity, smooth pressure regulation, low hysteresis, high repeat accuracy, compact structure, long‑term stable operation for heavy‑load hydraulic Machine
Working Principle
DRE(M)(E)-6X proportional pressure‑reducing Hydraulic valve consists of proportional pilot solenoid, pilot valve assembly and main spool. After receiving the electrical command signal, the proportional solenoid outputs corresponding thrust to adjust pilot pressure. Pilot pressure pushes the main spool to change the opening gap between inlet and outlet, reducing the main‑circuit high‑pressure oil to preset stable secondary pressure, regardless of flow fluctuation inside the hydraulic system.
The ‑M version adds built‑in check‑valve to prevent reverse‑flow pressure impact; ‑E version integrates electronic drive unit, simplifying wiring layout. Damaged proportional solenoid, spool sticking or electronic module failure will cause pressure drift, unstable pressure output, pressure loss or over‑pressure faults of the Machine. Replacing a qualified DRE(M)(E)-6X proportional pressure valve can restore accurate remote pressure‑regulation performance of your hydraulic branch circuit.
Core Advantages
1. Stepless electric remote pressure setting, greatly improving automation and flexible adjustment efficiency of your hydraulic system.
2. Four optional structural variants to choose from, with or without check‑valve, external or built‑in amplifier, flexible to match different control‑cabinet layouts of industrial Machine.
3. Pilot‑operated large‑flow design, stable pressure‑reducing performance, excellent pressure‑holding capability and low‑hysteresis control effect.
4. Standard ISO sub‑plate installation dimension, strong interchangeability, convenient for upgrading or refitting existing hydraulic system.
5. Optional built‑in pressure‑limiting function provides over‑pressure safety protection for downstream hydraulic actuators.
Application Range
DRE(M)(E)-6X proportional pressure‑reducing Hydraulic valve is a premium pressure‑control spare‑part for heavy‑duty industrial hydraulic system. It is widely applied to hydraulic presses, die‑casting machinery, large injection‑molding machines, metallurgical rolling‑mill equipment, hydraulic test‑benches, material‑handling equipment and other high‑power hydraulic‑driven industrial Machine. Suitable for hydraulic‑system integrators, heavy‑equipment‑manufacturers, maintenance workshops and global spare‑parts distributors.
