Graco 193778 Diaphragm Shaft

Graco 193778 Diaphragm Shaft – Compatibility & Details

Compatible Applications & Equipment

• Graco diaphragm‑type pumps – connects and drives diaphragm assembly inside pump housing.
• Fluid transfer and coating rigs where diaphragm shaft integrity is critical for pump operation.
• Industrial sprayers or process systems using diaphragm technology for safe fluid handling under pressure.
• Maintenance or rebuild of diaphragm pumps – replacement shaft to ensure proper internal operation.

Product Overview

The Graco 193778 Diaphragm Shaft is an OEM replacement part that forms the internal shaft supporting the diaphragm mechanism in Graco pump assemblies. It ensures correct motion and alignment of diaphragm components, enabling reliable fluid displacement and pump function. Installing this shaft helps restore pump performance and prevents operational failures caused by worn or damaged internal shafts.

Specifications

Key Features

• OEM‑Specified Shaft: Manufactured to original Graco specifications for correct alignment and fitment.
• Ensures Proper Diaphragm Movement: Provides smooth and accurate diaphragm motion to maintain fluid flow.
• Durable Internal Component: Built to withstand repeated cycles and pressure loads without failure.
• Restores Pump Functionality: Replacing worn shaft helps recover lost pump performance and reliability.
• Simple Replacement: Fits directly into existing pump housing during rebuild without modifications.

Frequently Asked Questions