Heat dissipation occurs through conduction into the stuffing box body and rod, convection from external surfaces, and heat transfer to pumped fluids passing through the pump and stuffing box assembly. Stuffing box designs with large thermal mass and extended external surfaces enhance heat dissipation through increased conduction paths and convection surface area, while external coolin... https://globalsealstech.com/product-category/oil-gas-seals/high-pressure-water-pump-seals/