Before admitting any steam to a steam piping system, what is imperative to ensure?

Ensuring that no water or condensate exists in the piping before admitting steam to the system is crucial for several reasons. Water or condensate can lead to water hammer, which is a destructive phenomenon occurring when a steam system suddenly receives steam pressure after containing water. This pressure can create shock waves that could damage pipes, valves, and fittings, potentially leading to failure and dangerous situations.

Additionally, having condensate in the system can interfere with the proper heating and functioning of equipment designed to operate with steam alone. Steam is a gas and when mixed with water, it reduces the efficiency of the system, leading to issues in temperature control and pressure stability.

Therefore, confirming that the system is free from water or condensate before introducing steam is imperative for operational safety, efficiency, and durability of the steam piping system.