Flap Damper Installation at Multi-Fuel Boiler ESP

Application

Flap Damper was installed in Multi-Fuel Boiler ESP at Pulp and Paper Plant in Riau, Indonesia.

Problem

Multi-Fuel Boiler (MB) in this plant has been operating since 2005 and using dome valve type for the inlet valve. Due to frequent problems related to dome valve such as worn out rubber seal that damaged the dome, it drove the user to try using a different type of inlet valve. Other information obtained from the user was it did not last long. For example, the dome valve that has just been replaced could only last for two to six months.

Solution

To overcome such problem, Tai & Chyun recommended the user replace the existing dome valve with flap damper type. The benefits of the new flap damper dome valve are air leakage prevention and easier and faster replacement of rubber gaskets during maintenance outage. Flap dampers also have several advantages such as the hand-hole that facilitate the ease of replacing the rubber ring and a longer lifespan.

Benefit

After installing the flap damper, Tai & Chun team performed an open and close test to ensure the flap damper was functioning properly. The installation of the first flap damper has lasted more than 12 months till now. This prompted the user to replace the inlet valve in another ESP using the flap damper type.