***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Hydraforce directly.***
The Hydraforce NV08-20B-0-N (5401100) is a screw-in, cartridge style, variable orifice, hydraulic flow restrictor valve designed for precise flow control in hydraulic systems. This model operates by increasing its orifice size from fully closed to fully open with a counterclockwise rotation adjustment. The valve features a design where adjustments cannot be backed out, ensuring that once desired settings are achieved, they can be securely locked down. It is built with hardened parts to ensure long life and durability under rigorous conditions. The NV08-20B-0-N offers a linear adjustment mechanism and includes an aluminum knob option for enhanced usability. It also ensures positive shutoff, adding an extra layer of safety and efficiency. The compact size of this valve makes it ideal for applications where space is limited but precise flow control is necessary. This model boasts impressive pressure ratings with a standard pressure rating of 241 bar (3500 psi), proof pressure of 345 bar (5000 psi), and burst pressure reaching up to 896 bar (13000 psi). It supports a wide range of operating fluid temperatures from -40°C to +120°C (-40°F to +250°F) with Buna N seals, extending up to +204°C (+400°F) with fluorocarbon seals. The valve’s performance does not falter even in diverse environmental conditions as indicated by its robust temperature ratings. Additionally, the NV08-20B-0-N is capable of handling mineral-based or synthetic hydraulic fluids with lubricating properties within a fluid viscosity range of 7.4 to 420 cSt. Its maximum internal leakage is minimal at just 0.32 ml/min at shutoff, demonstrating its efficacy in maintaining system integrity. This needle valve model is designed for easy installation in VC082 cavities and requires no specific orientation, simplifying assembly processes across various applications.