All hp pumps are equipped with axial face seals made of Viton which can resist pressures of up to 5 bar and withstand 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 dependence with the temperature.
Product Number for Axial Face Seal
Gear Rotor Size Ø
Shaft Ø
Viton (max. 150°C) Sparepart Product No.
25
12
190015
38
12
190015
56
18
190016
75
22
190017
hp Electric Standby and Companion Heaters for Type H1 –
hp Industrial Pumps
All hp pump models can be equipped with electric heating, type H1, at the factory.
Equipped at factory: Article-No. H1
Spare Part Article-No. H1
Suitable for pumps with a motive force diameter of:
Shaft Ø
Heating Capacity [W]
Number of Heating Cartridges 230V, 50Hz, other voltages available upon request
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