Parker N400B Hydraulic Control Valve 5 Gpm 2000 Psi

Product Description

The PARKER N400B is a hydraulic control valve designed to regulate flow in hydraulic systems operating at pressures up to 2,000 psi. Built with a brass body and nitrile seals, it handles flow rates up to 5 GPM through a 1/4-18 NPT threaded inlet. The knob handle allows manual flow adjustment in tight installations. At 2 inches overall length and 0.5 pounds, it fits compact hydraulic circuits without adding bulk. Licensed hydraulic technicians and industrial maintenance professionals are the typical installers for this type of valve.

The N400B suits light-duty hydraulic control applications in industrial, mobile, and stationary equipment where a compact, manually adjustable brass valve is required. The 1/4-18 NPT thread standard makes it compatible with standard hydraulic fittings widely used in North American plumbing and hydraulic circuits. It is appropriate for systems requiring precise manual flow management at moderate pressures and low-to-medium flow rates.

Key Features

• Maximum working pressure of 2,000 psi for moderate-duty hydraulic service
• 5 GPM maximum flow rate suits light hydraulic circuits
• 1/4-18 NPT thread for compatibility with standard hydraulic fittings
• Brass body construction provides corrosion resistance in hydraulic fluid environments
• Nitrile seals rated for compatibility with common hydraulic oils
• Knob handle enables manual adjustment without additional tools

Compatibility

Designed as an OEM-style replacement or drop-in addition for hydraulic systems using 1/4-18 NPT threaded control valves rated to 2,000 psi and 5 GPM with brass body construction.

Installation Notes

Installation should be performed by a qualified hydraulic technician or industrial maintenance professional. Depressurize and isolate the hydraulic circuit completely before removing or installing any valve. Apply appropriate thread sealant to NPT threads per the system manufacturer's guidelines, and do not overtighten threaded connections into brass-body valves. Verify that system operating pressure and flow rate remain within the rated limits of this valve before returning the circuit to service.