Parker RK0300K000 Accumulator Seal Kit 3 Inch Bore

Product Description

The PARKER RK0300K000 is a Buna-Nitrile seal kit designed for 3 inch bore piston accumulators. It provides all the sealing components needed to restore proper function to a piston-style hydraulic accumulator during a rebuild or maintenance service. The kit uses Buna-Nitrile as the primary seal material, which offers reliable resistance to petroleum-based fluids and general hydraulic oils. PTFE glide rings are also included to reduce friction and wear on the piston. This kit is intended for installation by hydraulic technicians and fluid power mechanics working on industrial or mobile hydraulic systems.

This seal kit is used during scheduled maintenance or when an accumulator shows signs of internal leakage, pressure loss, or seal degradation. It is suited for piston accumulators installed in industrial hydraulic circuits, mobile equipment, or any system requiring energy storage and pressure stabilization. Because the kit includes every sealing component for a complete rebuild, no separate sourcing of individual seals is required to finish the job.

Key Features

• Buna-Nitrile seal material compatible with petroleum-based hydraulic fluids
• Includes V O-ring piston seal and V O-ring backups for primary piston sealing
• PTFE glide rings reduce piston friction and extend seal service life
• O-ring, O-ring backup, and gas valve O-ring cover all secondary sealing points
• Complete kit eliminates the need to source individual seals separately
• Sized specifically for 3 inch bore piston accumulators

Compatibility

Designed for use with 3 inch bore piston accumulators as specified by PARKER for this seal kit.

Installation Notes

Installation should be performed by a qualified hydraulic technician. Before disassembly, fully depressurize the accumulator by discharging all hydraulic pressure and relieving the gas pre-charge according to the accumulator manufacturer's service procedure. Inspect the bore and piston for scoring before installing new seals. Lubricate seals lightly with clean system fluid during assembly to avoid damage during installation.