Special seals - GTS

About this product

The advanced GTS seal is designed to handle real world steam applications providing the benefits of a mechanical seal in sealing steam turbines.

Laser-applied Precision Face Topography Waves create a non-contacting, non-clogging gas film between the seal faces resulting in outstanding seal life
Fully bidirectional design enables the same design to be used on both ends of double ended steam turbines
Unique Spring Energized Graphite (SEG) secondary seals provide both high temperature capability and zero leak-by while also minimizing seal face distortions
Heat treated Alloy 718 bellows handles high steam temperatures and maintains a light contact load on the seal faces which assures low steam leakage and zero seal face wear
Internal and external mount configurations enable fitment in most steam turbines with little or no equipment modifications

Materials of Construction

Operating Parameters

Size Range:
- 60.3 to 181 mm (2.375 to 7.125″)
Products:
- Steam – saturated and superheated
- Hot Condensate
Seal Chamber Pressure:
- up to 20 bar (300 psi)
Seal Chamber Temperature:
- up to 343°C (650°F)
Maximum Speed:
- 7000 rpm
Minimum Slow Roll Speed:
- 3 m/s (10 fps) – for pressures less than 3.4 bar (50 psi)
- No minimum speed for pressure greater than 3.4 bar (50 psi)

Internal Mount
- Directly replaces carbon ring seals without requiring equipment modifications.
- Can be supplied as a cartridge seal.
- Greatly reduces steam leakage and improves turbine efficiency.
External mount
- Mounts outside the seal chamber when space allows.
- Supplied in the traditional cartridge seal configuration.
- Great for new steam turbines and retrofits with some equipment modification