Mechanical seal 28ST

Technical Data Mechanical seal IS28ST

Temperature Limits 40°F to 500°F/-40°C to 260°C
Pressure Limits 400 psi(g)/27.6 bar(g)
Speed Limits 400fps/122m/s
Size Limits 6.5″/165mm

Brand

KSB

Non-contacting Gas Seal for Steam Turbines IS28ST

IS28ST combines proven rotating groove technology and high-temperature secondary seals to reduce steam leakage by nearly two orders of magnitude, as compared to traditional sealing devices, such as segmented carbon rings and labyrinths. This steam-lubricated, end-face cartridge seal reacts instantaneously and automatically to maintain a safe face gap despite sudden changes in operating conditions. A stable seal face gap, typically 0.0001″ to 0.0002″/0.0025mm to 0.0051mm, is the result of specially designed rotating grooves, which pump steam radially inward into a non grooved portion of the seal known as the “sealing dam.”

Technical Description

Technical Description Mechanical seal IS28st

is28ST combines proven rotating groove technology and high-temperature secondary seals to reduce steam leakage by nearly two orders of magnitude, as compared to traditional sealing devices such as segmented carbon rings and labyrinths.

This steam-lubricated, end-face cartridge seal reacts instantaneously and automatically to maintain a safe face gap despite sudden changes in operating conditions
A stable seal face gap, typically 0.0025mm to 0.0051mm/ 0.0001″ to 0.0002″, is the result of specially designed rotating grooves, which pump steam radially inward into a non grooved portion of the seal known as the “sealing dam”
Primarily for use on steam turbines

Applications