Graco 15B316 Outlet Fitting

Graco 15B316 Outlet Fitting – Product Details & Compatibility

Compatible Machines

The Graco 15B316 Outlet Fitting is designed for use in Graco displacement and diaphragm pump assemblies where the fluid outlet port requires a precise threaded fitting to connect downstream plumbing.

• Graco fluid‑transfer and pump modules which specify the 15B316 outlet fitting on the lower or valve housing
• Graco industrial spray systems where the outlet port is ¾″ NPT(m) with M42×2.0 thread conversion (in certain models) 
• Maintenance kits or pump rebuilds where the original outlet fitting must be matched to maintain seal integrity and alignment

Product Overview

The Graco 15B316 Outlet Fitting is an OEM‑specified threaded adapter that installs at the pump’s fluid outlet port, ensuring robust connection, correct thread engagement and sealing of the fluid path. It aligns with Graco’s component standards and supports reliable system performance under pressure cycling.

Key Features

• OEM Graco outlet fitting for correct mating with Graco pump housings
• Threaded design (3/4″ NPT(m) with optional M42×2.0 interface in some models) for versatility 
• Durable material construction suitable for high‑pressure fluid service and frequent cycle use
• Facilitates proper seal and connection to downstream equipment without requiring full pump assembly replacement

Technical Specifications

Usage Notes

• Depressurize the pump and isolate fluid lines before removing or installing the outlet fitting.
• Use the OEM Graco part 15B316 to ensure correct thread, material and sealing — incorrect substitutes may lead to leakage or thread damage.
• Verify that the mating O‑ring or seal (if applicable) and seating surfaces are clean and free of damage before installation.
• When tightening, follow torque recommendations from the pump manual (e.g., approx. 163 ± 22 N·m for some models)

Frequently Asked Questions