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Graco 15G501 Hydraulic Motor Valve Sleeve 4 GPM

The **Graco 15G501 Sleeve Valve** is a precision OEM part for 4 GPM hydraulic motor systems, ensuring smooth flow control and long-lasting reliability.

  • Function: Controls hydraulic flow and motor actuation
  • Flow Rating: 4 GPM
  • Material: High-strength machined alloy
  • Ensures: Leak-free operation and extended service life
  • OEM Part #: 15G501

Retail Price: $42
You save: $0.84 (2.00%)
Our Price: $41.16
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Graco 15G501 Sleeve – Valve, Hydraulic Motor (4 GPM)

The Graco 15G501 Sleeve is a precision-engineered component designed for use in hydraulic motor valve assemblies within high-performance fluid handling and spray systems. It plays a critical role in maintaining accurate flow regulation, reliable sealing and long service life in demanding industrial applications.

Key Features & Specifications

Primary Function Serves as the internal sleeve / valve insert for the hydraulic motor valve block, enabling fluid control at up to 4 gallons per minute (GPM).
Flow Rating Rated for 4 GPM to match the hydraulic motor’s intended flow capacity in compatible systems.
Construction & Tolerances Precision-machined sleeve from durable alloy with strict tolerance control to ensure minimal leakage, proper alignment and consistent valve actuation.
Sealing & Wear Resistance Built to withstand repeated cycles, hydraulic pressure, abrasive coatings and the chemical exposure encountered in spray systems—ensuring reliable performance and minimal maintenance.
Fit & Compatibility Designed for specific Graco hydraulic motor valve assemblies that support 4 GPM flow; ensures correct geometry, thread alignment and installation finish.

Why Choose This Sleeve Valve?

In hydraulic-driven spray systems, the valve sleeve is key to maintaining consistent motor actuation, stable fluid flow and long-term reliability. The 15G501 ensures you have the factory-specified part with the correct flow rating, material integrity and dimensional accuracy to avoid performance drop-off, misalignment or early wear associated with aftermarket substitutes.

Installation & Maintenance Tips

  • Shut down and isolate the equipment; relieve all hydraulic pressure before servicing the valve assembly.
  • Clean the valve block, check for any burrs, corrosion or previous seal residue; remove any contamination before installing the new sleeve.
  • Install the sleeve ensuring correct orientation and engagement; tighten any locking hardware to the manufacturer’s torque specification to preserve alignment and sealing integrity.
  • After installation, test the system at low pressure and gradually increase to full flow (4 GPM) while monitoring for leaks, erratic behaviour or motor instability.
  • During regular service intervals, inspect the sleeve and surrounding components for signs of wear, scoring, leakage paths or incorrect flow; if performance degrades, replace the sleeve rather than continually adjusting.

Frequently Asked Questions

This sleeve is specifically rated for 4 GPM flow. Using it in a system designed for different flow or pressure can lead to improper function, increased wear or instability in the hydraulic motor valve assembly.

Signs include unusual motor speed variation, unstable fluid flow, increased hydraulic noise, leak-detectable around the valve housing or difficulty achieving full 4 GPM flow under load. These warrant inspection and likely replacement of the sleeve valve.

While aftermarket sleeves may fit, they may not match the exact flow rating, materials or tolerances of the OEM part. This difference can lead to premature wear, leaks or unstable system performance—using the original ensures the best system integrity.

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