What type of device should be installed between the isolation valve and the union on the inlet of the steam trap?

Installing a strainer between the isolation valve and the union on the inlet of the steam trap is essential for maintaining the efficiency and functionality of the steam system. The purpose of a strainer is to filter out any debris or particles that may be present in the steam supply line. This can prevent clogging and ensure that the steam trap operates correctly, allowing it to effectively remove condensed steam and other impurities from the system.

When foreign materials enter a steam trap, they can impede its function, potentially leading to blockages or improper drainage. By placing a strainer upstream of the steam trap, you help protect it from damage and maintain a reliable flow of condensate and steam. This proactive measure not only prolongs the life of the steam trap but also enhances the overall performance of the steam system.

In summary, the installation of a strainer is a critical step in ensuring that the components of the steam system, including the steam trap, operate smoothly and efficiently.