Which material is commonly used for gaskets in boiler connections?

Prepare for the Maryland Boiler License Test. Study with flashcards and multiple choice questions that include hints and explanations. Ace your exam!

The use of fiberglass or graphite for gaskets in boiler connections is primarily due to their ability to withstand high temperatures and pressures, which are common in boiler operations. Both materials possess excellent sealing properties and resist degradation in harsh environments, making them suitable for thermal stability and integrity. Graphite gaskets, in particular, can easily accommodate the expansion and contraction of boiler components due to temperature fluctuations.

Copper, while a good conductor and used in some applications, is not typically used as a gasket material due to its tendency to deform under pressure and its potential to create corrosion issues with other metals in the system. Rubber, on the other hand, may not hold up well against high temperatures and pressures found in boilers, leading to potential failures. Plastic gaskets generally lack the necessary mechanical strength and thermal resistance needed for reliable performance in boiler systems.

Thus, fiberglass or graphite gaskets provide the combination of durability, reliability, and performance required for effective sealing in boiler applications.

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