Parker PQ-00084 Hydraulic Hose Coupler 6700 Psi Nptf

Product Description

The PARKER PQ-00084 is a stainless steel hydraulic hose coupler designed for high-pressure fluid transfer applications. Rated to 6,700 psi maximum working pressure, it accepts a 4 mm (1/4 inch) hose and connects via a 1/4-18 NPTF threaded interface for a leak-resistant, pressure-tight seal. The coupler measures 1.46 inches in overall length and supports a maximum flow rate of 6.00 GPM. This fitting is built for demanding hydraulic circuits where corrosion resistance and pressure integrity are critical. Hydraulic technicians and fluid power specialists install this type of coupler in industrial, mobile, and equipment-mounted hydraulic systems.

This coupler is suited for use in hydraulic assemblies requiring a compact, threaded stainless steel connection point. Typical applications include machine tool hydraulics, agricultural equipment, construction machinery, and any system where resistance to corrosion or high cyclic pressure is a design requirement. The NPTF thread form creates a mechanical seal at the threads, reducing reliance on thread sealants in many service conditions. Sold in a package quantity of two.

Key Features

• Maximum working pressure of 6,700 psi for high-demand hydraulic circuits
• Stainless steel construction provides corrosion resistance in harsh service environments
• 1/4-18 NPTF threaded connection for a pressure-tight mechanical seal
• Accepts 4 mm (1/4 inch) hose diameter
• Maximum flow rate of 6.00 GPM
• Compact overall length of 1.46 inches for tight installation spaces

Compatibility

Designed as an OEM-style replacement or service fitting for hydraulic systems requiring a 4 mm, 1/4-18 NPTF threaded stainless steel coupler rated to 6,700 psi, Series ST.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power specialist. Before servicing any hydraulic connection, relieve all system pressure completely and isolate the circuit from the pump. Apply thread sealant appropriate for hydraulic service if required by system specifications. Inspect mating port threads and hose end fittings for damage before assembly, and torque to the fitting manufacturer's published specification for the thread size and material.