Graco 116558 Coupling Chemical Injector

Graco 116558 – Chemical Injector Coupling

The Graco 116558 Coupling Chemical Injector is a genuine OEM coupling component designed to connect chemical‑injector modules or fluid‑delivery assemblies within compatible Graco pump and injection systems. It ensures a secure, leak‑resistant connection in chemical injection setups.

Key Features & Purpose

• Coupling for chemical injector assemblies: Provides proper mechanical join between injector, pump or manifold components. :contentReference[oaicite:5]{index=5}
• OEM Quality: Genuine Graco coupling built to fit original injector and fluid assemblies — ensures correct threads, sealing surfaces, and compatibility. :contentReference[oaicite:6]{index=6}
• Used in chemical‑injection systems: Intended for use in Graco chemical‑injector pumps or fluid‑handling units requiring a coupling for injector connection. :contentReference[oaicite:7]{index=7}
• Replacement / Maintenance Part: Useful when servicing or rebuilding chemical‑injection equipment — ensures proper connection integrity if original coupling is worn or damaged. :contentReference[oaicite:8]{index=8}

Compatible Systems / Applications

• Graco chemical‑injection pump assemblies that list 116558 as the coupling for the injector module. :contentReference[oaicite:9]{index=9}
• Pumps and fluid‑handling systems requiring a secure chemical‑injector coupling to ensure leak‑proof fluid connections and safe injection operations.
• Repair or maintenance applications — when re‑assembling or replacing injector components and the coupling needs replacement.

Note: Because 116558 is designed for chemical‑injection systems, confirm that your equipment’s injector module or manifold matches the coupling design and specifications before use. :contentReference[oaicite:10]{index=10}

When & Why to Use / Replace 116558

• When the original coupling is missing, damaged, or worn out — replacing with 116558 ensures OEM‑spec connection integrity.
• During maintenance, rebuild or servicing of chemical‑injection pumps — ensures correct fluid path and leak‑resistant coupling.
• To maintain safe and reliable chemical injection operations — correct coupling prevents leaks, contamination, or improper fluid delivery.

Frequently Asked Questions