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Graco 15K105 Ball Stop

The Graco 15K105 Ball Stop is a critical internal valve component designed to reliably stop fluid flow in your sprayer’s pump assembly.

  • OEM specified stop ball for Graco pump valves
  • Ensures fluid flow control and reduces leakage
  • Ideal for maintenance of Tradeworks and mid‑capacity sprayers

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Graco 15K105 Ball Stop – Detailed Product Overview

Compatible Machines

  • Graco Tradeworks 150 (Model 826620) sprayer series
  • Graco Tradeworks 170 (Model 826630) sprayer series

The Graco 15K105 Ball Stop acts as a shut‑off element within the fluid pathway of your sprayer’s pump or valve assembly. When properly seated, it ensures reliable flow control, prevents unintended bleed‑off or drift, and supports consistent pump operation. Replacing a worn or damaged stop ball is key to maintaining correct fluid dynamics and pump performance.

Key Feature Benefit
OEM‑Specified Size & Material Ensures proper sealing and component alignment.
Precision Machined Reduces leak potential and improves flow stability.
Compact Design Fits directly into original valve assembly without modification.

Installation & Maintenance Tips

  • Relieve system pressure before disassembling the pump/valve.
  • Remove old stop ball and inspect the valve seat for wear or debris.
  • Insert the new ball carefully, making sure it seats properly and the valve surfaces are clean.
  • Re‑assemble and test the system for correct flow and shut‑off function.

Frequently Asked Questions

A worn ball may fail to seal properly, leading to fluid leakage, reduced pump pressure, or inconsistent spray output.

Using OEM ensures proper size, material and tolerance; a generic may mis‑fit, causing leaks or premature wear.

Inspect during major maintenance or any time you service the pump; replace if any signs of leakage or poor sealing are observed.

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