Flow Solutions Division

GTS Seal for Steam Turbines

The most reliable steam seal inthe

industry, designed for real world applications.

Wavy Face technology gives a mechanical seal non-contactinglift off operation in real world applications yet can also sealliquids under upset conditions.• Able to recover from upset conditions because there are no

conventional face grooves to clog.• The Wavy Face design incorporates a positive sealing dam

and operates without face contact, hence, no wear.• Bi-directional operating capability improves interchangeability

and reduces installation and operation errors.

The new GTS steam seal - a simple design for easy retrofits of e

The new, advanced GTS is designed to handle real world steam applications to providereal benefits of a mechanical seal in sealing steam turbines

© 1998 Flowserve Corporation

*U. S. Patent numbers 4,836,561 & 4,887,395 with others pending

Conventional dry gas seals applied to steam turbine applications can fail prematurely due toclogging of grooved face patterns, sleeve distortions, and hang-up problems of dynamicsecondary sealing elements.

Superior Wavy Face* Technology

The most reliable steam seal inthe

ind

Flowserve expended considerable effort developing a mechanical seal that is especially designedfor steam turbine applications. The result is the GTS, providing the real benefits of a mechanicalseal in sealing steam turbines such as:

Tilt

WavinessAmplitude

Seal Dam

Bellows design helps eliminate secondary seal problems

GTS Inconel bellows along with lap joint, helps eliminate dynamicsecondary sealing element hang-up problems traditionallyexperienced in lightly loaded pusher seal designs.

Available as both integral and detachable designs

• Significant energy savings• Virtually no contamination of bearing oil resulting in enhanced MTBF

of the turbine• Elimination of hazardous “steam clouds” which improves plant safety

Distortion resistant sleeve design

Different temperatures across a sleeve causes different degrees of expansion creating facedistortion. The advanced design of theGTS sleeve greatly minimizes thisdistortion which helps to maintainseal face integrity, extending equipment MTBF.

existing steam turbines with no or minimum equipment modification

Sleeve and Drive Collar 416 Stainless Steel

Flange 316 Stainless Steel

Rotating Face Silicon Carbide

Stationary Face Premium Grade Resin Bound Carbon

Seat Gasket / Rotating Face Gasket Composite

Bellows Assembly Alloy 718

Labyrinth Bushing (optional) Carbon or Aluminum (depending on design)

Materials of Construction

industry, designed for real world applications.

Wavy Face rotating facenon-contacting, contamination resistant

Lapped bellowsflange supportno secondarysealing element

Low distortion sleeveminimizes temperatureeffects

High temperatureback up sealrobust design

Stationary carbon face

Free floating stationary facedriven by flange resulting inlow distortion

Alloy 718 bellows

Flow Solutions Division

BW SealsDurametallic SealsPacific Wietz SealsPac-Seal

Basic Seal Max Shaft Min Shaft3250 2.500” (63.5mm) 2.125” (54.0mm)3750 2.875” (73.0mm) 2.501” (63.5mm)4125 3.250” (82.6mm) 2.876” (73.1mm)5000 4.125” (104.8mm) 3.750” (95.3mm)

Standard Sizes

Products Steam (saturated and superheated)Hot Condensate

Maximum Speed 5000 rpm

Minimum Slow Roll Speed 10 fps (3 m/s)

Seal Chamber Pressure 0 - 300 psi (0 - 20 bar)

Seal Chamber Temperature 600°F (315°C)

Technical Information and Operating Parameters

GTS Detachable Arrangement

GTS Integral Design

FSD107REV 10/99 USA ISO 9000Certified

Licensees, authorized agents, and affiliated companies located worldwide.

Kalamazoo, MIPhone 616-381-2650Fax 616-381-8368

United StatesTemecula, CAPhone 909-676-5662Fax 909-308-4495

RoosendaalPhone 31-165-581-400Fax 31-165-552-622

Netherlands

DortmundPhone 49-231-6964-0Fax 49-231-6964-248

Germany

Edmonton, AlbertaPhone 708-463-7958Fax 708-450-1241

Canada

Sao PauloPhone 55-11-4066-8600Fax 55-11-4066-7014

BrazilTlaxcalaPhone 52-2-461-6791Fax 52-2-461-6847

MexicoPhone 65-746-4318Fax 65-747-1963

Singapore

Scarborough, OntarioPhone 416-292-2877Fax 416-292-5190

OsakaPhone 81-720-85-5571Fax 81-720-85-5575

Japan

The information and specifications presented in this product brochure are believed to be accurate, but are supplied for information purposes only and should not be considered certified or as a guarantee of satisfactory results by reliance thereon. Nothing contained herein is to be construed as awarranty or guarantee, express or implied, with respect to the product. Although Flowserve Corporation can provide general application guidelines, it cannot provide specific information for all possible applications. The purchaser/user must therefore assume the ultimate responsibility for the properselection, installation, operation and maintenance of Flowserve products. Because Flowserve Corporation is continually improving and upgrading its product design, the specifications, dimensions and information contained herein are subject to change without notice.

Primary Worldwide Flow Solutions Division Locations

MendozaPhone 54-261-427-2300Fax 54-261-427-2524

Argentina

Marayong NSWPhone 61-2-8822-7100Fax 61-2-9679-7511

Australia

www.flowserve.com

Printed in USA