Graco 100474 Coupling Pipe

Graco 100474 Coupling Pipe — Overview & Compatibility

Compatible Machines

The Graco 100474 Coupling Pipe is a threaded fitting used across various Graco pump/manifold and proportioner assemblies. Confirm with your machine’s parts manual before ordering.

• Bulldog® 33:1 Airless Spray Pump (appears in parts breakdowns for select Bulldog pump assemblies)
• Graco 8900 Proportioner Series (listed in select proportioner manuals as “COUPLING, pipe”)
• Other Graco transfer/airless pump systems that require a 1-11½ NPT(M) pipe coupling in their fluid path

Product Description

The Graco 100474 Coupling Pipe is a male 1-11½ NPT pipe coupling used to connect fluid lines or components within Graco spray and proportioning equipment. It maintains a robust, leak-resistant connection when installed per equipment specifications.

Key Specifications

How to Confirm Fitment

• Match the thread callout in your manual to 1-11½ NPT(M).
• Verify the parts diagram explicitly lists 100474 at the connection you are servicing.
• Inspect mating ports for damage and ensure pressure rating and materials meet your application.

Why Choose Genuine Graco

• Correct geometry and tolerances for Graco assemblies
• Reliable sealing when installed with appropriate thread sealant (if specified)
• Supports long-term system integrity and maintenance standards

Frequently Asked Questions