A titanium sheath heating element consists of a wire resistance coil surrounded by magnesium oxide powder (MgO), encased within a titanium metal tube (sheath). It is particularly recommended for use within challenging water conditions, as the titanium sheath offers a greatly reduced risk of failure and leaks.
Titanium resists corrosion and pitting which means that element life is significantly greater than that of an element manufactured with an alternative sheath of copper or incoloy. This is especially true when operating within very hard or chemically aggressive water. Ultimately, the exceptional corrosion resistance, results in a longer element lifespan and therefore, lower replacement costs for the end user.
Titanium also has a high level of mechanical strength, and an excellent strength-to-weight ratio. This is especially valuable in environments where there is vibration, thermal cycling, or heavy operational demands.
Titanium sheath elements are commonly useful in the following applications:
· Domestic hot water cylinders fed by aggressive water e.g. coastal locations, water with high mineral content
· Commercial and Industrial hot water systems
· Swimming pools / spa systems
· Chemical processing plants
To conclude, titanium sheath heating elements offer a robust and durable solution for heating liquids in demanding industrial or high-usage environments. They are chosen for their:
· Outstanding corrosion resistance
· Long service life
· Mechanical strength
· Suitability for hard water and aggressive liquids
· Reliable, stable heating performance
Although a little more expensive to procure, the operational benefits and reduced risk of failure associated with hard water and aggressive liquids, often justify the additional cost of purchase. They are considered the premium choice in industrial, commercial, or harsh-water environments.