20418031 Ring retaining hydraulic water jet intensifier pump 

Both Streamline SL-IV and PRO-III are high-pressure waterjet pump models manufactured by KMT Waterjet Systems. While they share some similarities, there are several differences between these two models:

Pressure Range: The Streamline SL-IV can deliver up to 90,000 psi (6,200 bar) of water pressure, while the PRO-III can deliver up to 125,000 psi (8,620 bar) of water pressure. This means that the PRO-III is capable of higher pressure cutting, which can result in faster cutting speeds and more precise cuts.

Power: The PRO-III is a more powerful pump than the Streamline SL-IV. It has a maximum horsepower of 200 hp, while the Streamline SL-IV has a maximum horsepower of 150 hp. This means that the PRO-III can handle more demanding cutting applications and can cut through thicker materials.

Efficiency: The PRO-III is designed to be more energy-efficient than the Streamline SL-IV. It uses less energy to generate the same amount of cutting power, which can result in lower operating costs.

Noise Level: The PRO-III is quieter than the Streamline SL-IV. It has a lower decibel rating, which can make it more suitable for use in noise-sensitive environments.

Size and Weight: The PRO-III is larger and heavier than the Streamline SL-IV. This can make it more difficult to move and install, but it also means that it has a larger reservoir for abrasive materials, which can result in longer cutting times between abrasive refills.

Overall, the PRO-III is a more powerful, efficient, and capable pump than the Streamline SL-IV. However, it is also more expensive and may not be necessary for all cutting applications. The choice between these two models will depend on the specific needs and requirements of the user.