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The PARKER BD-4000-4-1 is a threaded hydraulic hose coupler designed for use in hydraulic fluid power systems. It accepts a hose with a 0.5 inch inside diameter and is rated for a maximum working pressure of 2,500 psi. The threaded connection style provides a secure, leak-resistant joint suitable for demanding hydraulic circuits. This type of fitting is typically installed by hydraulic system technicians, industrial maintenance professionals, and fluid power specialists working on mobile or stationary hydraulic equipment.
This coupler is suited for hydraulic hose assemblies where a 0.5 inch ID hose connects to a threaded port. The 1/2 inch thread size makes it compatible with standard hydraulic fittings and manifold ports commonly found in industrial machinery, construction equipment, and mobile hydraulic systems. It is intended for use within its rated working pressure and should be matched to hose assemblies rated to the same or higher pressure specification.
Designed as an OEM-style replacement or assembly component for hydraulic hose systems requiring a 0.5 inch ID threaded coupler rated to 2,500 psi.
Installation should be performed by a qualified hydraulic technician or industrial mechanic. Before servicing any hydraulic fitting, fully depressurize the hydraulic system and relieve all stored pressure to prevent injury. Use appropriate thread sealant or tape as required by the fitting thread type, and verify that all mating components are rated to handle the system working pressure. Follow applicable industry standards and equipment manufacturer guidelines for hydraulic hose assembly and installation.
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