Discharge. Frictional heat generation increases with sealing force, rod speed, friction coefficient, and abrasive content of pumped fluids, creating thermal management challenges particularly in high-pressure high-speed applications or when pumping abrasive fracturing slurries or cement at pressures requiring very tight packing compression. https://globalsealstech.com/product-category/oil-gas-seals/high-pressure-water-pump-seals/