Non-contacting steam seal Type 28ST is a proven solution with the highest service performance for indusrial steam turbine equipment.
Product reliability results from successful use of non-contacting seals in compliance with high global performance requirements. A seal of this type is a truly non-contacting product incorporating identical principles of operation as the industry standard compressor seal line of Type 28 non-contacting product family.
Seal Type 28ST is a single-staged non-contacting gas lubricated seal with a unique spiral groove design for low-speed and high-speed applications within all the equipment operated under transient and continuous conditions.
Seal Type 28ST has been designed to replace conventional sealing devices (segmented carbon rings and labyrinths), whether fitted to an internally or externally mounted carbon box without modifications to the turbine.
|Temperature, °С||up to 400|
|Duration, rpm||from 6000 to 7500|
|Axial movement, mm||± 3,2|
|Radial movement, mm||± 0,6|
|Pressure, bar g||up to 27,6|
|Shaft diameter, mm||from 25,4 to 165,1|
This product is available in the markets of Russia, Belarus and Ukraine