‍The following pages show some of the ways in which ABB valve automation products bring benefits in different applications

Electric actuators

Maintenance-free operation for the longest time

In boiler applications, superheaters are widely used to help increase steam temperature.

Shower water valves control the supply of cooling water that is injected into the superheated steam in the superheater and reheater.

Tight control of the cooling water supply helps to achieve optimum steam temperatures both inside and at the output of the superheater.

The Challenge – Accurately Controlling the Mass Flow of Cooling Water

To minimize the cooling of steam in the process while achieving the maximum allowable steam temperature

Continuous, precise control of the mass flow rate of cooling water injected into the superheater and reheater is required.

This requires continuous and precise control of the mass flow rate of cooling water injected into the superheater and reheater. 

Too much water injection will result in subcooling of the steam and reduce boiler efficiency.