Parker 71-3N4-4F Hydraulic Hose Valve Fitting 1/4 in 10000 Psi

Product Description

The PARKER 71-3N4-4F is a straight hydraulic hose valve fitting designed for high-pressure fluid control in industrial and off-shore hydraulic systems. Built from steel with a 1/4-inch NPTF threaded connection, it handles working pressures up to 10,000 psi and operates across a temperature range of -35 degrees F to 250 degrees F. The straight profile and threaded shaft type make it a direct, reliable choice for in-line hose-to-valve connections. Licensed hydraulic technicians and pipefitters install this fitting in demanding environments where pressure integrity and leak-free sealing are critical.

This fitting is rated for use with industrial hydraulic lines and off-shore drilling applications. The 1/4-inch hose size and 0.25-inch coupler size make it appropriate for compact hydraulic circuits operating at extreme working pressures. Part of the Parker Series 71 product line, it suits both stationary and mobile hydraulic assemblies where NPTF thread engagement provides a pressure-tight, metal-to-metal seal without requiring additional sealant tape under normal installation conditions.

Key Features

• Maximum working pressure of 10,000 psi for high-demand hydraulic service
• NPTF threaded connection provides a pressure-tight metal-to-metal seal
• Steel construction for durability in industrial and off-shore environments
• Straight shape simplifies in-line hose-to-valve installation
• Wide temperature range: -35 degrees F to 250 degrees F
• 1/4-inch hose and coupler size for compact hydraulic circuit integration

Compatibility

Designed for use with industrial hydraulic lines and off-shore drilling systems. Part of the Parker Series 71 fitting line for 1/4-inch hydraulic hose assemblies requiring NPTF threaded connections.

Installation Notes

Installation should be performed by a qualified hydraulic technician or pipefitter. Depressurize and isolate the hydraulic circuit completely before removing or installing any fitting. NPTF threads are designed to seal on thread engagement alone, but always inspect threads for damage before assembly and follow the fitting manufacturer torque guidance where available. Verify system pressure rating compatibility before returning the circuit to service.