Bellow Seals By Eagle Burgmen India Pvt. Ltd.

The YE400 seal, used especially in refineries and heat transfer media, is specifically designed for the most demanding of high and low temperature services as well as being suitable for high speed application.

The stationary configuration, in which the flexible bellows element is fixed into the equipment casing, eliminates damaging "swashing" motion due to casing distortion or shaft deflection. It also insulates the flexible element from direct shaft vibration and promotes more positive sealing while significantly extending seal life.

The core of the seal is an edge welded bellows unit with a design proven over more than 20 years experience in many

tens of thousands of applications to give many years of trouble free service. The bellows is precision manufactured in Inconel 718 material and is subject to the very highest levels of quality control to ensure consistent and reliable operating performance. The pressure capability of the standard YE400 can be increased through the use of a double ply (laminated bellows plates) version. This design allows a low spring rate, providing face loads close to initial design values, as face wear occurs or shaft expansion reduces operating lengths.