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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 
 

 

 

 

2. General 

 

  
The Steriflange may be welded into the vessel before it’s welded 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. into the Steriflange, ensure that no other equipment will be in conflict 

with the assembled parts. Also make sure that there's enough space to mount/dismount the locking 
ring.  

  
  

   

  

  

 

 
 

 
 

 
 

 

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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