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Effective silicon carbide seals for trusted water pumps
About the different parts that make up the Dolz water pump, in this post we are going to focus on the component in charge of protecting against any possible leak and contamination: the dynamic seal.Get more news about Submersible Pump Seals,you can vist our website!
Along with the bearing, the seal is the most important element of the water pump, since its tightness depends on them. Therefore, its main function is to protect the bearing by preventing leaks and contamination from the coolant getting a hermetically sealing water pump.
The challenge in this process is to allow the rotating shaft to enter the “wet” area of the pump, without allowing some of the coolant to escape. And for this reason, it is necessary that there is a seal between the pump and the casing, supporting the pressure of the process and the friction caused by the shaft rotation.
Traditionally, this was achieved through stuffing: a cord impregnated with waterproofing grease, that was wrapped around the shaft behind the turbine.
A technique that has evolved as new engines have been developed in the automotive sector. Therefore, it was necessary to create more reliable and durable configurations to obtain the highest possible seal strength properties.At Industrias Dolz we have self-lubricated silicon carbide seals, with HNBR rubbers and synthetic graphic contact rings. A product of the highest quality for an optimal water pump performance.
Thanks to their innovative design and accompanied by a quality coolant, these seals completely prevent leakage and the result is a long service life for the water pump.State-of-the-art materials characterized by high hardness, low thermal expansion, high rigidity and good resistance to wear.
The Silicon carbide seals are made up of two differentiated parts, one of which is fixed to the casing and the other rotates along the bearing axis. All this in a single piece that is mounted independently of the turbine using a device that ensures precise height adjustment characteristics and maintaining its resistance.Silicon carbide (SiC) is a material with properties of great hardness, similar to a diamond, which make it ideal for use in component manufacturing processes that are exposed to extreme temperatures, voltage and frequency.
This semiconductor and refractory material resists abrasion and wear which gives multiple benefits such as high thermal conductivity, high mechanical resistance and low coefficient of friction.
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