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Graco 159446 Gasket

The Graco 159446 Gasket provides reliable sealing for high-pressure pumps, preventing leaks and ensuring consistent fluid flow in airless sprayers.

  • Compatible with 205‑628 Series H, 205‑629 Series H, 205‑621 Series 0 pumps
  • Durable elastomer construction with PTFE coating
  • Withstands pressures up to 6000 psi
  • Easy to install and replace

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Graco 159446 Gasket: High-Performance Pump Seal

The Graco 159446 Gasket is a precision-engineered seal designed to maintain fluid integrity in high-pressure airless sprayer pumps. Crafted from nitrile and FKM elastomers with PTFE coating, it ensures leak-free performance and extended service life in demanding applications.

Compatible Machines

  • Graco 205‑628 Series H Pumps
  • Graco 205‑629 Series H Pumps
  • Graco 205‑621 Series 0 Pumps
  • General Airless Sprayers using 159446 OEM gasket

Key Features

  • Precision-molded elastomer ensures tight sealing and minimal leakage
  • Durable nitrile and FKM construction with PTFE coating for reduced friction
  • Compact design for easy installation in pump assemblies
  • Withstands pressures up to 6000 psi and temperatures -30°C to 150°C
  • Resistant to solvents, acids, alkalis, and abrasive coatings

Installation & Maintenance

  • Ensure mating surfaces are clean and undamaged before installation
  • Follow standardized torque sequences to avoid overcompression
  • Pre-lubricate with compatible grease to reduce initial friction
  • Inspect periodically for radial clearance and lip deformation
  • Direct replacement for legacy OEM seals for seamless retrofits

Frequently Asked Questions

It provides a leak-free seal in high-pressure pumps, maintaining fluid integrity and consistent flow for airless spraying operations.

Compatible with 205‑628 Series H, 205‑629 Series H, 205‑621 Series 0 pumps, and other airless sprayers using the 159446 OEM gasket.

It withstands pressures up to 6000 psi and temperatures ranging from -30°C to 150°C, making it suitable for professional coating applications.

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