All hp pumps are equipped with axial face seals made of viton which can resist pressures of up to 5 bar and with stand temperatures of up to 150 ° C.
The axial face seals are relieved of pressure on the suction side of the pump. See graph for maximum pressure load of the axial face seal, i.e. of the suction side in dependance with the temperature.
Product number for axial face seal
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