Graco 15A038 Piston Air Valve

The Graco 15A038 Piston Air Valve ensures proper air flow and diaphragm movement in select Graco pumps. Key points to know:

Compatible with Graco TRITON 1030HP and 3D350HP series pumps
Directs compressed air to the pump chambers for efficient operation
Precision-machined for durability and reliable performance
Replace during air-valve rebuilds or if wear is observed

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Description

Compatible Machines for Graco 15A038 Piston Air Valve

The Graco 15A038 Piston Air Valve is a critical component in select Graco diaphragm pumps, controlling the air flow to drive the diaphragm and ensuring efficient pump operation.

Compatible Machines

Graco TRITON 1030HP Diaphragm Pump (Models: 233750, 233751)
Graco 3D350HP Diaphragm Pump Series

Key Features

Feature	Description
Part Number	15A038
Function	Directs compressed air to pump chambers as part of the air valve assembly
Material	Precision-machined metal for durability and reliable operation
Maintenance	Replace during air-valve rebuilds or when wear is detected

Technical Details

Specification	Details
Assembly Location	Inside the air-valve assembly of Graco diaphragm pumps
Function	Switches air flow to control diaphragm movement
Replacement Interval	During regular maintenance or when performance issues occur
Importance	Ensures proper cycling of the pump and prevents air leaks

Frequently Asked Questions

The piston air valve directs compressed air to the pump chambers, controlling diaphragm movement and ensuring proper pump operation.

The 15A038 piston fits Graco TRITON 1030HP (Models 233750, 233751) and Graco 3D350HP Diaphragm Pump Series. Always verify with your pump's parts manual.

Replace the piston during an air-valve rebuild or if there are signs of wear, mis-cycling, or air leaks to maintain pump performance.