The frequency of operations of a steam trap is governed by:

The correct choice is that the frequency of operations of a steam trap is governed by the amount of condensate formed in the line. Steam traps are designed to efficiently remove condensate, air, and other non-condensable gases from the steam system while preventing the escape of steam.

When steam is introduced into a system, it condenses as it gives up heat to the surrounding equipment. The rate at which this condensate forms directly affects how often the steam trap needs to operate. If there is a higher amount of condensate due to a load or operating condition, the trap will open more frequently to allow this condensate to exit the system.

While the temperature of the steam, pressure in the system, and flow rate do influence the overall efficiency and operation of the steam system, they don’t directly dictate the frequency with which a steam trap opens and closes. It is the condensate formation that is the primary driver for trap operation, making it the most relevant factor in this context.