Winner NV-08W-20-A-N Needle Valve Technical Specifications
Hydraulic Circuit Parameters and Flow Dynamics
The Winner NV-08W-20-A-N is a high-precision, screw-in cartridge-style hydraulic needle valve engineered for accurate and continuous manual flow regulation in industrial hydraulic systems. Designed for integration into a standard 08-2 cavity, this component accommodates a maximum operating pressure rating of up to 350 bar (5000 psi) and supports a maximum recommended fluid throughput or rated flow capacity of up to 30 L/min (8 US gpm). The fine-adjustment internal spool and tapered needle configuration allow operators to finely tune fluid restriction in both directions, ensuring smooth and reliable velocity control for hydraulic actuators and motors across diverse operational cycles.
Mechanical Tolerances, Cavity Integration, and Environmental Durability
Constructed with high-grade alloy steel internal components subjected to precision heat treatment and grinding, the valve provides exceptional structural rigidity and wear resistance under high-pressure differential stress. It requires a precise manifold installation torque ranging between 25 to 30 Nm (18 to 22 ft-lbs) to maintain housing geometry and prevent distortion under peak systemic loads. The exterior housing features proprietary corrosion-resistant Zinc-Nickel plating, salt-spray tested for up to 1000 hours in compliance with DIN EN ISO 9227 standards, providing superior protection against harsh industrial environments, while utilizing standard Buna-N sealing elements with optional Viton configurations for optimal mineral-based fluid compatibility.
