Graco King Airless Sprayers

Which King Line Is Right for Your Job?

Contractor King is designed for mobility and one-person crews, while standard air-powered King models offer a wider range of configurations for demanding production work. Selected King E-Series configurations are approved for hazardous locations. King E-Max XT provides an electric option for non-hazardous locations: the 40 model is rated to a maximum of 4,000 psi and 4.0 gpm, the 60 to 6,000 psi and 3.4 gpm, and the 70 to 7,250 psi and 2.9 gpm. These are model limits, not a guarantee of simultaneous maximum pressure and flow. The table compares four King lines; ask Bolair about King PC and other configurations.

*Air-powered figures describe theoretical displacement at 60 cycles per minute; electric figures are published maximum flow rates. Actual output depends on the material and setup. Specifications and hazardous-location approvals must be checked for the exact model and package.

What Do Air-Powered King Pump Ratios Mean?

For an air-powered King sprayer, the pump ratio describes the approximate relationship between inlet air pressure and fluid outlet pressure. A 70:1 pump supplied with 100 psi of air would theoretically produce about 7,000 psi of fluid pressure before operating losses. The permitted inlet air pressure and maximum fluid pressure depend on the model. The lowest-rated hose, gun or accessory also limits the spray system. This air-pressure calculation does not apply to electric King sprayers.

Which King Sprayer for Your Coating Material?

Select a King sprayer using the coating manufacturer’s required tip size, minimum atomization pressure, viscosity, solids content and target production rate. Coatings within the same generic family can have very different application requirements. Higher-ratio pumps provide more available fluid pressure, while larger-displacement, lower-ratio pumps generally provide more volume. Bolair can confirm a suitable configuration when provided with the coating product data sheet and expected hose and gun setup.