Product Overview
The KAOLU QKL-HS1-E-C-A-3/8 is an electronically controlled proportional pressure regulator engineered for precise, infinitely variable pressure regulation in hydraulic and pneumatic process circuits. Manufactured by KAOLU, this valve converts an analog electrical command signal into a proportional output pressure, enabling closed-loop or open-loop control of downstream actuators, cylinders, and process lines. Unlike fixed pressure relief or reducing valves, the QKL-HS1-E-C-A-3/8 modulates its internal spool position in direct proportion to the input current or voltage, delivering smooth, repeatable pressure transitions without discrete steps. The 3/8 port designation indicates a nominal 3/8 inch connection size, making this unit well suited to medium-flow industrial circuits where accurate pressure control is critical to process quality and system safety.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Electronic Proportional Pressure Regulator (Hydraulic / Pneumatic Valve) |
| Model Designation | QKL-HS1-E-C-A-3/8 |
| Manufacturer | KAOLU |
| Port Size | 3/8″ (nominal connection) |
| Control Method | Electronic proportional (analog command signal) |
| Operating Pressure | Standard Industrial Grade (up to rated bar per model variant) |
| Mounting & Connection | Standard ISO / Manufacturer Interface |
Engineering Features & Advantages
- Precision Proportional Metering: The internal spool and proportional solenoid assembly deliver output pressure that tracks the electrical command signal with high linearity and minimal hysteresis, enabling accurate process control.
- Electronic Actuation: Direct interface with analog control signals (current or voltage) allows seamless integration into PLC, amplifier card, and closed-loop process control architectures.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust sealing and wear-resistant spool geometry for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, simplifying retrofit and maintenance on existing KAOLU and equivalent systems.
Typical Industrial Applications
The KAOLU QKL-HS1-E-C-A-3/8 is deployed in plastic injection molding machines for precise mold clamping and injection pressure profiling, in metallurgical presses requiring controlled force application, in CNC machine tools and test stands where programmable pressure ramps are essential, and in general process and pneumatic control loops across chemical, food, and packaging industries where electronic pressure regulation ensures consistent product quality and safe operation.
PRODUCT IMAGES
KAOLU QKL-HS1-E-C-A-3/8 Electronic Proportional Pressure Regulator
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine KAOLU QKL-HS1-E-C-A-3/8 Solenoid Directional Control Valve. This Germany-made hydraulic component features a spool-type design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.