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Graco 158389 Valve Stem

The Graco 158389 Valve Stem ensures accurate fluid control and long-lasting performance in Graco spray systems.

  • Fits: Graco President 10:1 Air Spray Systems (205-626, 205-627)
  • Material: Stainless steel with nitrile O-ring
  • Use: High-pressure coatings & adhesive pumps
  • Type: Genuine Graco replacement part

$50.38
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Graco 158389 Valve Stem – Precision and Reliability

The Graco 158389 Valve Stem is a high-quality replacement component designed for precise fluid control in demanding spray applications. Its durable stainless steel construction ensures long-lasting performance and minimal maintenance.

Compatible Machines

Graco Machine Series Notes / Compatibility
President 10:1 Ratio Air Spray System Models 205-626, 205-627 and other related pump assemblies
Graco 15F726 Ball Valve Housing Pumps Compatible with 10:1 and 15:1 pump ratios

Key Features

  • Material: 17-4 PH stainless steel with nitrile O-ring seals
  • Precision Engineering: Machined stem tip for consistent fluid flow and minimal wear
  • Durable: Corrosion-resistant and suitable for abrasive coatings
  • Easy Installation: Drop-in replacement for compatible Graco pump models

Applications

Ideal for high-pressure pump systems, injection molding release agents, adhesive dispensing, and professional coatings requiring precise fluid metering.

Frequently Asked Questions

The valve stem controls fluid flow within Graco pump assemblies, ensuring precise and consistent delivery of coatings or adhesives.

It fits Graco President 10:1 Ratio Air Spray Systems (models 205-626, 205-627) and pumps using the 15F726 Ball Valve Housing (10:1 and 15:1 pump ratios).

Use a calibrated torque wrench (15–18 Nm) to secure the stem, lubricate with compatible grease, and ensure O-ring seals are properly aligned.

Yes, it is designed for high-viscosity fluids, abrasive coatings, and continuous high-pressure operations.

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