Mechanical seal SHFVI for a boiler circulation pump

A boiler circulation pump in the coal-fired block of a power plant conveys very hot and pressurized water. Its seals must function properly up to 300 °C (572 °F) and at a pressure of up to 150 bar (2,175 PSI). The pump has no cooling jacket, which increased the risk of a thermosiphon effect. EagleBurgmann prevents the exchange of cold and warm water on the shaft by the mechanical seal SHFVI and the screw pump HPS.

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