20120817 Warman Mechanical Seal Brochure.pdf

WARMAN® Centrifugal Slurry Pumps Mechanical Seal

Excellent Minerals Solutions

The Warman® mechanical seal is an industry revolutionizing mechanical seal that does not require flush or quench water, and is designed and developed by the leading pumping equipment manufacturer, Weir Minerals.

The Warman® mechanical seal is a single cartridge type seal developed to seal against slurries without using flush or quench water. Warman® mechanical seal advantages •

Capped joint system that absorbs shaft to casing misalignments

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Minimizes wear from abrasion and vibration

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Elastomer rings to prevent clogging

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Soft and safe torque transmission

Industries:

Applications:

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Coal

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Grinding

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Sand and gravel

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Concentrates

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Flue Gas Desulfurization (FGD)

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Tailings

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All types of ore

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General bulk solids handling

Warman® mechanical seal

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Operating parameters Stuffing box pressure

up to 18 bar (264 psig)

Solids concentration

up to 70%

Temperature

up to 100˚C

Rotational speed

up to 23 m/s (4100 rpm)

Misalignment

up to 1.5 mm

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Warman® mechanical seal technology, the solution for all applications where Weir Minerals equipment is needed to handle slurry.

1. Capped joint system

5. Elastomeric bellows

The capped joint system in the Warman® mechanical seal absorbs shaft-to-casing misalignment commonly found in heavy duty applications. This feature allows the Warman® mechanical seal to work in worn or out-of-spec equipment.

The elastomeric bellows are components designed to avoid the transmission of vibration from the pump casing to the sealing zone. Its hydrodynamic design facilitates the displacement of slurry towards the back zone of the seal, circulating at low speed without wearing of the rubber and allowing an efficient hydraulic balancing.

2. Compression system Conventional springs have been replaced by a stationary elastomeric ring which is designed to give the system a smooth, constant and uniform compression between the seal faces and eliminates typical clogging found in compression systems of alternative designs. 3. Inherent sealing of face rings A vulcanized elastomer is bonded to each seal face designed to achieve a 100% sealing action, avoiding wear due to vibration. 4. Protected faces Both faces are protected by metallic components, providing resistance to abrasive wear. The contact zone between the faces is protected from crushing caused by solids and particles in suspension.

6. Traction system type clamp Both seal rings have replaced the traditional metallic pins with a retention clamp system. The result is a soft and safe torque transmission, decreasing the damaging effects of frequent start/stop pump operation. 7. Traction of rotatory unit The Warman® mechanical seal ensures maximum adhesion to the shaft by means of axial tightening of the collar ring. 8. Monitoring of seal face temperature Provided as an option, it is possible to connect a thermocouple or RTD to monitor the temperature generated in the stationary seal face, making it possible to avoid seal damage due to dry operation of the pump. 9. Centering clips Clips allow for concentricity adjustments and centering of the compression system.

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WEIR MINERALS SERVICES™ The Weir Minerals Services™ Sentinel® program is a team concept providing lower Measured Total Ownership Cost (MTOC) through improved reliability, lower power consumption and reduced maintenance cost.

Weir Minerals Services™ Sentinel® Program modules include: •

Cooperative cost focus groups

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Pump audits

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Equipment maintenance monitoring

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Wear life monitoring

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Performance based agreements

Weir Minerals Services Sentinel Program

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Spare parts supply agreements

Pump users enter into formal agreements with Weir Minerals with the aim of benefiting from ongoing reductions in operating costs.

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Customized training programs

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Equipment rebuild services

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Pump exchange services

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Tailored maintenance packages

Our menu approach allows each customer to select the level of commitment and participation they feel best meets their needs. ™

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WARMAN® Centrifugal Slurry Pumps GEHO® PD Slurry Pumps LINATEX® Rubber Products VULCO® Wear Resistant Linings CAVEX® Hydrocyclones FLOWAY® PUMPS Vertical Turbine Pumps ISOGATE® Slurry Valves MULTIFLO® Mine Dewatering Solutions HAZLETON® Specialty Slurry Pumps LEWIS® PUMPS Vertical Chemical Pumps WEIR MINERALS SERVICES™ For further information on any of these products or our support services contact your nearest sales office or visit:

www.weirminerals.com Excellent Minerals Solutions

Weir Minerals North America

2701 S Stoughton Road, Madison WI 53716 PO Box 7610, Madison WI 53707 USA

Tel: 608 221 2261 Fax: 608 221 5810 www.weirminerals.com

Copyright © 2012 Weir Slurry Group, Inc.. All rights reserved. WARMAN is a registered trademark of Weir Minerals Australia Ltd and Weir Group African IP Ltd; CAVEX, HAZLETON and MULTIFLO are registered trademarks of Weir Minerals Australia Ltd; LEWIS and LEWIS PUMPS are registered trademarks of Envirotech Pumpsystems Inc; GEHO is a registered trademark of Weir Minerals Netherlands bv; FLOWAY is a registered trademark of Weir Floway Inc.; VULCO is a registered trademark of Vulco SA; ISOGATE is a registered trademark of Weir do Brasil Ltda.; LINATEX is a registered trademark of Linatex Ltd; SENTINEL is a registered trademark of Weir Slurry Group, Inc.; WEIR is a registered trademark of Weir Engineering Services Ltd. Certain features of the WARMAN mechanical seal are protected worldwide by patents pending and registered in the name of Vulco SA.