Product Overview
The PARKER 9N400S is a precision-engineered hydraulic needle valve designed for accurate flow control and shut-off in high-pressure industrial hydraulic systems. As part of Parker’s comprehensive line of flow control and modular valves, the 9N400S utilizes a fine-threaded needle and seat arrangement to deliver infinitely adjustable, micrometer-level flow regulation. This valve is ideally suited for applications requiring precise metering, gradual pressure build-up, or reliable isolation of hydraulic circuits. Its robust construction ensures minimal leakage and long service life, making it a critical component in demanding industrial environments.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Needle Valve (Flow Control & Modular Valve) |
| Model Designation | 9N400S |
| Operating Pressure | Up to 350 bar (5000 psi) standard industrial grade |
| Mounting & Connection | Standard ISO / Manufacturer Interface (in-line or modular subplate mounting) |
| Flow Coefficient (Cv) | Optimized for fine metering (exact value dependent on port size) |
| Adjustment Mechanism | Micrometer-style fine-threaded needle with locking nut |
| Seal Material | Nitrile (Buna-N) or Viton (FKM) for high-temperature compatibility |
Engineering Features & Advantages
- Precision Performance: The fine-threaded needle and seat design allows for extremely sensitive flow adjustment, enabling accurate control of actuator speeds and smooth pressure transitions without system shock.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, the 9N400S features a robust body and hardened internal components to resist wear, erosion, and cavitation damage.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards ensures drop-in installation without modification to existing manifolds or piping.
- Leak-Tight Shut-Off: When fully closed, the needle valve provides a reliable, bubble-tight seal, effectively isolating sections of the circuit for maintenance or safety.
- Modular Versatility: Designed for integration into modular valve systems, allowing for compact stacking and simplified system design in complex hydraulic power units.
Typical Industrial Applications
The PARKER 9N400S hydraulic needle valve is widely used in heavy industrial scenarios where precise flow control is critical. Common applications include plastic injection molding machines for accurate injection speed profiling, metallurgical presses for controlled ram movement, construction and marine hydraulics for smooth boom and winch operation, and CNC machine tools for precise feed rate regulation. It is also frequently employed in test stands and hydraulic power units for pressure holding and circuit isolation.
PRODUCT IMAGES
PARKER 9N400S Hydraulic Needle 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 9N400S Solenoid Directional Control Valve. This USA-made 24V DC hydraulic component features a 4-way 3-position design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.