Parker VHN12-12F Hydraulic Valve Fitting 3/4 in 3500 Psi

Product Description

The PARKER VHN12-12F is a straight hydraulic hose valve fitting designed for high-pressure fluid transfer in industrial and mobile hydraulic systems. Manufactured from steel with an NPTF threaded connection, it provides a pressure-tight seal rated to 3,500 psi at working conditions. The fitting measures 2.29 inches in overall length with a 3/4-inch body diameter and 3/4-inch thread size. It is installed by hydraulic technicians and mechanical trades working on fluid power systems where reliable, leak-free connections are required at elevated pressures and across a broad operating temperature range.

This fitting is suited for use in industrial hydraulic lines, mobile equipment hydraulic circuits, and water and coolant lines. The Series H straight design makes it a practical choice for terminating or valving hydraulic hose assemblies where space and inline alignment are priorities. Its NPTF thread form ensures a dry-seal connection that does not rely solely on thread sealant for pressure integrity, making it appropriate for demanding mobile and stationary hydraulic applications.

Key Features

• Maximum working pressure of 3,500 psi for high-demand hydraulic service
• NPTF dry-seal thread provides a pressure-tight connection without sealant dependency
• Steel construction for durability in industrial and mobile equipment environments
• Straight body shape supports inline hose-to-valve connections
• Operating temperature range from -35 degrees F to 250 degrees F
• 3/4-inch hose size and 3/4-inch thread size for consistent sizing throughout the assembly

Compatibility

Designed for use with industrial hydraulic lines, mobile equipment hydraulic systems, and water and coolant lines as specified by the manufacturer. Suitable for Series H hydraulic hose valve fitting applications requiring a 3/4-inch NPTF straight threaded connection.

Installation Notes

Installation should be performed by a qualified hydraulic technician or pipefitter familiar with high-pressure fluid power systems. Depressurize and isolate the hydraulic circuit fully before removing or installing any fittings. NPTF threads are designed to seal on thread engagement, but inspecting threads for damage before assembly is standard practice. Follow applicable fluid power standards and equipment manufacturer torque guidelines when making up connections.