Product Overview
The Parker VB42-Q-NQ-5 is a high-performance directional control valve from Parker Hannifin’s renowned VB series, engineered for precise flow direction management in demanding industrial hydraulic systems. This valve utilizes a robust spool-type design with a manually actuated lever mechanism, providing reliable and responsive control over hydraulic actuator movement. The VB42-Q-NQ-5 is specifically configured with a closed-center spool, ensuring that all ports are blocked in the neutral position, which is ideal for applications requiring load holding and precise position control. As a critical component in hydraulic circuits, this directional control valve directs pressurized fluid to cylinders or motors, enabling forward, reverse, and neutral operations with exceptional repeatability and minimal pressure drop.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Directional Control Valve |
| Model Designation | VB42-Q-NQ-5 |
| Operating Pressure | Up to 350 bar (5075 psi) rated |
| Mounting & Connection | Standard ISO 4401 / CETOP interface |
| Actuation Type | Manual lever with detent |
| Spool Configuration | Closed-center (Q designation) |
| Flow Rate | Up to 80 L/min (21 gpm) |
| Port Size | NG10 (CETOP 5) subplate mounting |
Engineering Features & Advantages
- Precision Spool Metering: The hardened, precision-ground spool and sleeve assembly ensures minimal internal leakage and accurate flow control, enhancing system efficiency and response.
- Industrial Reliability: Constructed with a high-strength cast iron body and corrosion-resistant components, this valve is built for continuous operation under severe industrial conditions, including high shock and vibration environments.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Parker VB series valves and standard ISO 4401 subplates, allowing for drop-in replacement without system modification.
- Manual Lever Actuation: Provides tactile feedback and reliable operation, with a detent mechanism that maintains spool position without continuous operator input.
- Low Pressure Drop: Optimized internal flow paths minimize pressure losses, reducing heat generation and improving overall system energy efficiency.
Typical Industrial Applications
This directional control valve is ideal for a wide range of heavy industrial applications, including plastic injection molding machines, metallurgical presses, construction and marine hydraulic systems, and CNC machine tools. Its robust design and precise control make it suitable for any hydraulic circuit requiring reliable directional control of actuators with load-holding capability.
PRODUCT IMAGES

PARKER VB42-Q-NQ-5 Directional Control Valve
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- 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 VB42-Q-NQ-5 Hydraulic Directional Control Valve. This USA-made 120V AC hydraulic component features a 4-way 3-position design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.