TECHNICAL BULLETIN. Serck Audco Slimseal Wafer Type Butterfly Valves. Experience in Motion FCD SREETB

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1 Serck Audco Slimseal Wafer Type Butterfly Valves FCD SREETB TECHNICAL BULLETIN Experience in Motion

2 SREETB /13 The Audco Slimseal is a wafer type butterfly valve with an integrally bonded elastomer liner. Requring absolutely no form of maintenance the Slimseal is a perfect fit and forget valve. Available with either a flangeless or lugged body, in a size range of mm, a pressure rating of up to PN16 and offered with latching lever or actuation as well as different combinations of disc and seat materials, the Slimseal is a truly versatile valve. Features Integrally bonded b ody seat PTFE coated stainless steel shaft Primary and secondary seals integral with body lining Different disc and seat combinations available Weatherseal feature (see below) Spherical machined and polished disc (optional) Benefits Easy and trouble free mounting in the pipeline. No maintenance. No tearing and distortion of liner. Exceptionally long seat life. Uniform sealing. Suitable for vacuum and high flow applications. Permanent dry lubrication. Ease of operation. Prevents corrosion on shaft. Ensures compatibility with media. Suitable for a wide range of applications. Atmospheric sealing to valve internals. Ensures longer seat life, easier operation and tight shutoff. Weatherseal Feature The acetal bush (see 1 opposite) at the top end of the shaft acts as a bearing, thereby reducing actuator torque The Weatherseal (2) provides atmospheric sealing to the valve interior Applications GENERAL APPLICATIONS Oils, fuels, water, air, gasses, powders, pellets, slurries etc Brines, sea water, estuary water, marine bilge and ballast systems CONTINUOUS WORKING TEMPERATURE RANGE Hydrocarbons (Except aromatics) 10 C to 90 C Other liquids 10 to 80 C Dry services 10 to 60 C Liquids 10 C to 80 C MAXIMUM WORKING PRESSURE DISC MATERIAL Nylon coated SG iron Aluminium Bronze SEAT MATERIAL Black Nitrile Steam, water, hot gasses, powders, slurries and aqueous slurries of an abrasive nature Liquids 10 C to 120 C Dry services 10 C to 100 C Stainless steel Periphery Polished General Purpose EPDM 2

3 SREETB /13 Valve with lever Valve with gear unit Dimensions (mm) Valve Size mm (inches) 50 (2 ) 65 (2.5 ) 80 (3 ) 100 (4 ) 125 (5 ) 150 (6 ) B C E: Flow control lever F (8 ) (10 ) (12 ) (14 ) (18 ) (18 ) (20 ) (24 ) 880 H : Water flangeless Water lugged N: Flow control lever U: Flow control lever ZN ZF Handwheel dia. flowserve.com 3

4 SREETB /13 Material specification Part Standards Operation Material of Construction Body Cast Iron to BS 1452 Gr 220 SG Iron to BS 2789 Gr 420/12 C/S to ASTM A216 Gr WCB Body Liner Disc Shaft Bearings Standard flow control lever Face to Face Size (mm) Valve Design 50 to 350 to 600 Valve Types Black Nitrile EPDM (WRC Approved) SG. Iron to BS 2789 GR 420/12 with Nylon coating AI. Bronze to BS 1400 Gr AB2/AB1 S/S to ASTM A351 Gr CF8/CF8M edge polished AISI 410 PTFE coated for permanent dry lubrication 50 mm Acetal mm Phosphor Bronze SG Iron to BS 2789 Gr 420/12 Standards BS 5155 Wafer Short API 609 Category A MSS SP 67 Narrow Body ISO 5752 Short BS5155 Wafer Medium API 609 Category A (Except DN 350) MSS SP 67 Wide Body ISO 5752 Medium BS 5155 Specificaiton for Butterfly Valves API 609 Lug and Wafer type Butterfly Valves MSS SP 67 Butterfly Valves ISO Metal valves for use in flanged pipe systems. Face to face and centre to face dimentions Size Range (mm) Flow Control Lever 50 to Standard Gear Unit 50 to Heavy Duty Gear Unit 200 to 600 Torque Data Nm* Valve size line Pressure Rating Operation The valves are of short pattern type and have been designed to fit between flanges without gaskets drilled to BS 10 Tables D, E and F, ANSI 125/150, DIN PN 10/16, BS 4504 (PN10/16), Tables 6 to 9 of IS : 6418, Tables 10 to 20 of IS : 6392 and Tables 4 to 6 of IS : 1538 Accessories Pressure (bar) (mm) Seat Black Nitrile/ EPDM Rating (bar) Test Pressure (bar) Body/ Disc Slimseal butterfly valves can be supplied with factory fitted pneumatic, hydraulic or electric actuators along with other accessories such as limit switches, manual overrides, positioners etc. to for a complete flow control package. Heavy duty gear units are supplied for valves to be fitted with electric actuators. Seat

5 Serck Audco Valves a division of Flowserve GB Ltd Burrell Road, Haywards Heath West Sussex RH16 1TL United Kingdom Telephone: +44 (0) Telefax: +44 (0) savukinfo@flowserve.com FCD SREETB Printed in the U.S.A. 6/13 To find your local Flowserve representative or for more information about Flowserve Corporation, visit or call USA Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide variety of industrial service conditions. Although Flowserve can (and often does) provide general guidelines, it cannot provide specific data and warnings for all possible applications. The purchaser/user must therefore assume the ultimate responsibility for the proper sizing and selection, installation, operation, and maintenance of Flowserve products. The purchaser/user should read and understand the Installation Operation Maintenance (IOM) instructions included with the product, and train its employees and contractors in the safe use of Flowserve products in connection with the specific application. While the information and specifications contained in this literature are believed to be accurate, they are supplied for informative 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 a warranty or guarantee, express or implied, regarding any matter with respect to this product. Because Flowserve is continually improving and upgrading its product design, the specifications, dimensions and information contained herein are subject to change without notice. Should any question arise concerning these provisions, the purchaser/user should contact Flowserve Corporation at any one of its worldwide operations or offices Flowserve Corporation, Irving, Texas, USA. Flowserve is a registered trademark of Flowserve Corporation. Experience in Motion