Graco 116526 Compression Spring

Graco 116526 – Compression Spring

The Graco 116526 Compression Spring is a factory‑original coil spring — designed to provide the necessary return or actuation force within Graco spray, pump or fluid‑handling assemblies. It ensures reliable valve/piston operation and consistent mechanical performance under repeated use.

Key Features & Purpose

• OEM‑grade coil spring: Made to Graco specifications for correct fit and performance. :contentReference[oaicite:6]{index=6}
• Mechanical return / actuation: Provides force to return valves, pistons or regulators to their resting positions after operation — ensuring proper sealing and flow control. :contentReference[oaicite:7]{index=7}
• Durable and reliable: Built to withstand repeated compressions under normal operation conditions, minimizing wear and maintenance needs. :contentReference[oaicite:8]{index=8}
• Replacement or maintenance use: Useful when original spring is worn, fatigued, or damaged — restoring proper mechanical behavior. :contentReference[oaicite:9]{index=9}

Compatible Systems / Applications

This spring is intended for use in those Graco machines whose internal design calls for a compression spring (valve return, piston reset, regulator mechanism, etc.). Typical applications may include:

• Graco spray guns or spray equipment with spring‑loaded valves/trigger/return mechanisms
• Pump or fluid‑handling assemblies in Graco sprayers or coating units where a spring is specified for internal valves or pistons
• Any Graco equipment whose parts list or exploded‑view diagram lists “SPRING, COMPRESSION — 116526”

Note: Since performance depends on correct spring dimensions, spring rate, and matching assembly, always verify your machine’s parts diagram before installing 116526.

When & Why to Use/Replace

• When original spring is worn, fatigued or broken — replacement restores proper valve/piston return and prevents leaks or malfunction.
• During regular maintenance or rebuilds of internal valve or piston assemblies — replacing the spring ensures continued reliability.
• To maintain proper operation and consistent performance in fluid‑handling, spray or pressure regulation systems.

Frequently Asked Questions