GPX 220 Gas Piston Pump

GPX 220 Gas Piston Pump – OEM & Replacement Parts for Reliable Performance

The GPX 220 Gas Piston Pump is a high-performance, gas-powered airless spraying unit engineered for consistent pressure, reliable flow, and long-term durability. Designed for contractors who need power and mobility on the jobsite, this pump delivers smooth operation, extended productivity, and simplified maintenance. Its robust piston mechanism, efficient fuel-driven motor, and precision-built assemblies—such as the drive system, fluid section, filter assembly, and PRIME/SPRAY valve ensure dependable spraying even under demanding conditions.

Key Features

• Powerful Gas-Driven Performance for spraying thick coatings and handling large surface areas with ease.
• Durable Piston Pump Mechanism that maintains consistent pressure and improves coating uniformity.
• Efficient Fluid Section Assembly designed for high flow and reduced wear.
• Integrated PRIME/SPRAY Valve Assembly for quick priming, easy cleaning, and smooth spray switching.
• High-Capacity Filter Assembly to prevent clogs and maintain steady output.
• Portable, Contractor-Grade Cart Design built for rugged mobility on worksites.
  
  

Application

The GPX 220 Gas Piston Pump is suitable for a wide range of professional and industrial spraying tasks, including:

• Residential and commercial painting
• Exterior structures such as walls, fences, and decks
• Application of latex paints, primers, stains, and protective coatings
• Large-surface projects where high mobility and power are required
• Job sites without electricity or requiring independent fuel-powered operation
  
  

FAQ’s

1. Why is my GPX 220 Gas Piston Pump losing pressure during spraying?

Pressure loss usually occurs due to worn seals in the fluid section assembly, clogged filters, or air entering through loose connections. Inspect and replace worn seals, clean the filter assembly, and ensure all fittings are tightened properly.

2. How often should I replace the filter assembly components?

The GPX 220 filter assembly should be checked before every job. Replace the filter screen if it appears damaged, clogged, or heavily coated with debris to avoid spray pattern issues.

3. What should I do if the PRIME/SPRAY valve is not switching smoothly?

This issue may indicate internal wear in the GPX 220 PRIME/SPRAY valve assembly or accumulated paint residue. Clean the valve thoroughly; if stiffness continues, replace worn O-rings or the valve body.

4. Why is the pump producing inconsistent spray output?

Inconsistent output usually points to issues in the drive assembly or fluid section. Inspect the piston, packings, and drive gears for wear. Replacement of packings or worn mechanical parts often restores proper flow.

5. When should I replace components in the main assembly?

If you notice unusual vibrations, overheating, or repeated pressure fluctuations, the GPX 220 main assembly may have worn internal parts. It is recommended to replace damaged bearings, seals, or piston components as soon as symptoms appear to avoid full pump failure.