Graco 113909 Reducing Union Connector

Graco 113909 Reducing Union Connector – Overview & Compatibility

The Graco 113909 Reducing Union Connector (Union, KY) is an OEM fluid‑fitting used for joining two lines of different sizes in Graco AODD (air‑operated double diaphragm) pump systems. It helps ensure proper flow alignment and safe, leak‑resistant connections.

Compatible Machines

• Graco Husky 1050 AODD / Diaphragm Pumps :contentReference[oaicite:0]{index=0}
• Graco Husky 1590 AODD / Diaphragm Pumps :contentReference[oaicite:1]{index=1}
• Graco Husky 2150 AODD / Diaphragm Pumps :contentReference[oaicite:2]{index=2}
• General Graco Husky Air‑Operated Double Diaphragm Pump series :contentReference[oaicite:3]{index=3}

Key Features

• OEM Graco union connector with reducing design (one side smaller than the other)
• Metal construction for durability in industrial fluid transfer systems
• Used to join different‑sized fluid lines safely and securely
• Compatible with Graco diaphragm / AODD pumps for repair or rebuild

Specifications

Installation Notes

• Use Graco’s recommended torque and thread‑seal practices from the pump’s service manual. :contentReference[oaicite:4]{index=4}
• Inspect O‑rings or seal surfaces when disassembling — replace if worn.
• Ensure the correct side (reduced vs larger) matches your pipe / hose sizing for proper installation.

Frequently Asked Questions