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STERIDOSE SALES 

 

Head Office 

Himmelsbodavägen 7 · P.O.Box 120 ·  SE-147 22 TUMBA ·  SWEDEN 

Phone: +46-8 449 99 00 ·  Fax: +46-8 449 99 90 
[email protected] · www.steridose.com 

 

Regional Office 

5020 World Dairy Drive ·  Madison, WI 53718 ·  USA 

Phone: +1-608 229 5225 ·  Fax: +1-608 227 9599 

[email protected] · www.steridose.com 
 

 

   
  

 

STERIFLANGE

®

 

 

 

 

 

 

 

Welding Guide 

 

 

 

Welding the flange into position 

 

 

 

  

 

 

 

 

 

This welding guide should be read carefully  

before unpacking the Steriflange

®

 

  
 

 Order No.____________  
  

  
  

 
 

 

Summary of Contents for STERIFLANGE

Page 1: ...o steridose com www steridose com Regional Office 5020 World Dairy Drive Madison WI 53718 USA Phone 1 608 229 5225 Fax 1 608 227 9599 info steridose com www steridose com STERIFLANGE Welding Guide Welding the flange into position This welding guide should be read carefully before unpacking the Steriflange Order No ____________ ...

Page 2: ...08 229 5225 Fax 1 608 227 9599 info steridose com www steridose com Table of Contents 1 ABOUT THE WELDING GUIDE 3 2 GENERAL 4 3 POSITIONING AND ORIENTATION OF STERIFLANGE 4 3 1 ORIENTATION OF STERIFLANGE 4 3 2 DISTANCE BETWEEN WELDS 5 3 3 DISTANCE FROM OUTER EDGE 5 4 OPTIMUM ALIGNMENT OF STERIFLANGE 6 5 MAKING AND PREPARATION OF HOLE IN THE GABLE 6 6 WELDING TIG TACK WELDING THE STERIFLANGE 7 7 FI...

Page 3: ...nditions that arise after delivery for example faulty handling welding or fitting As a step in Roplan ABs quality assurance each flange is inspected prior to delivery to ensure conformance with regard to size and other requirements of the Roplan ABs drawings A certificate is enclosed with each delivery This procedure ensures that the probability of an original fault is very small Faults that do oc...

Page 4: ...ed together It can also be welded in an already finished vessel It is vital that all other welding on the lower gable end is completed before making a hole for the flange Examples of such welding that may be required are bottom outlet valves connection adapters for sensors and sample ports etc 3 Positioning and Orientation of Steriflange 3 1 Orientation of Steriflange In order to connect pipe etc ...

Page 5: ...ww steridose com 3 2 Distance between Welds The smallest permissible distance between the weld seam of a flange and any other weld is three times the thickness of the material of the gable end 3 x t according to the 1987 Swedish standards for pressure vessels TKN 87 3 3 Distance from Outer Edge The flange must be positioned in such a way that no part of its weld lies outside the large radius R2 se...

Page 6: ...Making and Preparation of Hole in the Gable 1 Measure the outer diameter of the Steriflange 2 Mark out the measured diameter on the outside of the lower gable end 3 Cut a hole with the aid of a plasma cutter following the marked size on the gable end 4 Prepare a suitable weld gap between the gable end and the flange by grinding the edge of the hole This weld groove should be kept as small as possi...

Page 7: ...l slowly on completion of welding No cooling medium other than air has to be used 1 Check that stamped charge number on the Steriflange is identical to the number on certificate 2 Position the flange in the hole so that the inner surface is flush with the inner gable surface 3 Tack weld the flange with a TIG welder at two points on the inside point 1 and point 2 in the figure below The correct fil...

Page 8: ...ust lie flush with the inside of the lower gable end 5 Tack weld the flange at two more points from the inside 3 and 4 in accordance with the below figure 6 Turn over the gable and place it on a flat bench Seal it between the bench and gable end with the aid of tape etc Fill the gable end with argon gas It will normally take about 3 or 4 minutes to replace the air with the inert argon gas Keep a c...

Page 9: ...tinuously from point 1 to point 2 along path A as shown in the figure below A 1 0 mm wire and welding current should be used when welding a 5 mm thick gable The filler material should be the same as that used previously Welding should be done without interruption The second half of the circle from point 1 to point 2 but along path B is now welded Otherwise the same as above The welding is finished...

Page 10: ...ice 5020 World Dairy Drive Madison WI 53718 USA Phone 1 608 229 5225 Fax 1 608 227 9599 info steridose com www steridose com 8 After Welding 1 Allow the gable and the flange to cool slowly on completion of welding No cooling medium other than air has to be used 2 Grind and polish the inside and outside of the weld to the required finish Steriflange is a registered trademark ...

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