Graco 116461 Thermal Valve 1/2 NPT

Graco 116461 – Thermal Valve 1/2″ NPT

Overview
The Graco 116461 Thermal Valve 1/2″ NPT is a temperature-sensitive valve with 1/2″ NPT threaded connection. It’s designed to regulate or automatically control fluid/air flow based on thermal conditions — useful for systems where fluid temperature affects pressure, safety, or fluid properties. This ensures more reliable and safer operation in variable temperature environments. ([official part listing])

Key Features & Functionality

• Thread size: 1/2″ NPT — compatible with standard NPT threaded fluid/air systems.
• Thermal‑valve design — activates or adjusts flow depending on temperature to protect fluid/air systems from overheating or improper flow conditions.
• Compact, threaded valve suitable for retrofit or replacement in fluid‑handling, spray, or pump systems requiring thermal safety or flow regulation.
• OEM‑grade Graco part (116461) — ensures correct threading, quality, reliability, and compatibility when used in compatible systems.

Compatible Machines / Systems

No publicly available exhaustive list of specific Graco models using 116461.

If your system’s parts diagram or service manual lists a “Thermal Valve 1/2″ NPT” (or part 116461), then this part is a correct fit. Otherwise, verify that the system’s fluid line uses a 1/2″ NPT thermal valve before installing.

Why Use This Thermal Valve?

This valve is useful when you need to:

• Automatically regulate fluid/air flow based on temperature — for safety or performance consistency
• Protect internal components from thermal stress or overheating
• Use a genuine OEM‑grade part to maintain reliability and correct fitment under pressure and thermal load
• Replace a worn or faulty thermal valve to restore safe operation of a fluid or spray system

Frequently Asked Questions