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
It provides return or actuation force for internal components (valves, pistons, regulators), ensuring they move or reset correctly after each operation. :contentReference[oaicite:10]{index=10}
Yes — 116526 is listed in Graco catalogs as “SPRING, COMPRESSION,” and is offered as an OEM replacement part. :contentReference[oaicite:11]{index=11}
Not necessarily. The spring must match the assembly’s design — correct dimensions, spring rate, and mounting position. Always verify via your machine’s parts diagram before use. :contentReference[oaicite:12]{index=12}
