Wholesale Proportional Valve by ChangJia-1

Product Overview

1) Product overview

Product Features

- The Wholesale Proportional Valve by ChangJia is an integrated electro‑hydraulic pressure control valve designed for subplate/block mounting. It combines a proportional solenoid pilot control and a main spool valve in one encased unit (types DBE and DBEM), offering proportional pressure control up to system pressures of 31.5 MPa.

Product Value

2) Product features

Product Advantages

- Integrated pilot control valve with proportional solenoid and main spool insert; DBE provides command‑dependent pressure adjustment, DBEM adds an optional spring‑loaded pilot for redundant maximum‑pressure safety.

Application Scenarios

- Encased block design for subplate mounting; valve and electronic amplifier (VT‑200/240) supplied as one source.

- Technical highlights: settable pressures (5, 10, 20, 31.5 MPa options), flow options up to model ranges (typically from tens to several hundred L/min), pilot flow ~0.7–2 L/min, linearity ±3.5%, repeatability

- Construction and environment: works with mineral oil (NBR) or phosphate ester (FPM), viscosity 2.8–380 mm²/s, temperature range –20 to +70 °C, electrical protection IP65.

3) Product value

- Precise, repeatable proportional pressure control simplifies process tuning and improves system performance.

- Integrated electro‑hydraulic design reduces installation complexity and wiring, shortens commissioning time, and simplifies sourcing (valve + amplifier as one package).

- Optional redundant pressure safety (DBEM) increases system reliability and protects equipment and personnel in safety‑critical applications.

- Wide operating envelope (pressure, flow, fluid compatibility) makes the valve suitable for many hydraulic system designs.

4) Product advantages

- Robust high‑pressure capability (up to 31.5 MPa) and compact, encased construction for clean, reliable operation.

- Good dynamic performance (low hysteresis with surge, fast switching) and tight repeatability for accurate control.

- Supplied with matched amplifier and designed for subplate mounting—reduces integration effort.

- ChangJia highlights: wholesale availability, ability to provide free samples for testing, washable/cleanable design, and capacity for professional customization and technical support.

5) Typical application scenarios

- Industrial hydraulic systems requiring proportional pressure control: presses, clamps, test benches, injection molding, die‑casting support circuits.

- Mobile and off‑road equipment where compact, integrated electro‑hydraulic valves are needed.

- Centralized hydraulic power units and valve blocks on machinery that require precise, repeatable pressure regulation.

- Safety‑critical installations where redundant maximum‑pressure limiting (DBEM) is desirable.