Product Overview
The PARKER PCL401-04-HK24-110 (part number 20078904) is a high-performance pneumatic directional control valve engineered by Parker Hannifin for precise actuation and reliable switching of compressed air circuits in industrial automation systems. Featuring a robust 4-way, 2-position (4/2) spool configuration, this valve directs airflow to double-acting cylinders and pneumatic actuators with rapid response and minimal pressure drop. The HK24 solenoid pilot operator with a 110V AC coil ensures consistent, low-power actuation, while the PCL401 series body is constructed for demanding continuous-duty operation. As a direct-acting, poppet-and-spool hybrid design, it delivers leak-tight sealing, high cycle life, and dependable performance in process and pneumatic control applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Directional Control Valve (4/2 Solenoid Valve) |
| Model Designation | PCL401-04-HK24-110 / 20078904 |
| Operating Pressure | Standard Industrial Grade (Up to 10 bar / 145 psi) |
| Mounting & Connection | Standard ISO / Manufacturer Interface (1/2″ port size) |
| Valve Function | 4-Way, 2-Position (4/2), Spring Return |
| Actuation Type | Solenoid Pilot Operated (HK24 coil, 110V AC) |
| Flow Rate | High-flow Cv rated for 1/2″ body (approx. 2.5–3.0 Cv) |
| Body Material | Anodized Aluminum / Corrosion-Resistant Alloy |
| Seal Material | Nitrile (NBR) / Polyurethane |
| Media | Filtered Compressed Air (40 µm filtration recommended) |
| Temperature Range | -10°C to +60°C (14°F to 140°F) |
Engineering Features & Advantages
- Precision Spool & Seal Design: The 4/2 spool configuration ensures accurate directional control with minimal internal leakage and fast shift response, optimizing pneumatic circuit efficiency.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original PARKER standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
As a direct-acting, poppet-and-spool hybrid design, it delivers leak-tight sealing, high cycle life, and dependable performance in process and pneumatic control applications.
PRODUCT IMAGES


PARKER PCL401-04-HK24-110 / 20078904 Pneumatic Directional Control Valve
⚡ 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 PARKER PCL401-04-HK24-110 / 20078904 Solenoid Directional Control Valve. This Germany-made hydraulic component features a 4-way spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.