Graco 104663 Pipe Plug

Graco 104663 Plug, Pipe – Essential Port-Seal Component

Compatible Machines

• Graco fluid filters and surge tank assemblies
• Graco airless spray pumps with unused ports that require secure closure
• Graco high-pressure fluid systems where thread sealing is critical
• Graco OEM repair kits and field-service replacements for pipe ports

Product Description

The Graco 104663 Plug, Pipe is designed as a reliable sealing plug for unused or service ports within high-pressure fluid-handling equipment. Its compact design and simple thread-in installation make it ideal for maintaining system integrity by preventing leaks, contamination ingress, or pressure loss in critical assemblies.

Key Features

• Thread-in pipe plug for unused ports or test points
• Durable metal construction suitable for high-pressure fluid environments
• OEM specified part — ensures compatibility with Graco systems
• Prevents leaks and contamination in fluid system ports
• Enables clean and secure maintenance sealing without custom adaptors

Technical Specifications

Applications

The Graco 104663 Plug, Pipe is suitable for sealing ports in surge tanks, fluid filters, manifold blocks, or any port within spray and fluid-handling systems where an unused opening must be securely closed. It supports reliable operation of mobile and stationary finishing equipment by maintaining integrity of fluid paths.

Performance Advantages

• Maintains system pressure and prevents fluid seepage from unused ports
• Speeds maintenance by offering a standard plug instead of custom blocking
• Helps ensure clean system internals by sealing unused access points
• Extends service interval by preventing slow leaks that degrade performance
• Optimises equipment uptime by offering a simple, reliable sealing solution

Maintenance Tips

When replacing or installing this plug, inspect the port threads and sealing surface for damage, apply the recommended thread-sealant if required, and tighten securely without over-torqueing to prevent thread galling. Replace the plug if signs of corrosion, cross-threading or leakage appear to ensure continued system integrity.

Frequently Asked Questions