Leister - Easily check a welding seam for leaks

With our VACUUM BOX and PUMP you can easily check to see if there are any leaks in a weld made by an Extrusion welder.
Vacuum box testing is a non-destructive examination used when trying to locate weld seam leaks. A vacuum box and a compressor create a vacuum while a detergent solution is applied to the test area. The detergent bubbles, make leaks visible within the created pressure zone.
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[@ariesoh4757]

Can this be used to checked welding joints of tank base plates? Base plate thickness is 25mm.

[@Leisterswitzerland]

Yes. the ACUUM BOX can also be used for tank base plates. Best regards Your Leister-Team

[@khajahafeezuddin7066]

We have Etched PTFE Sheet to be joined by Permabond Adhesive and to be Vaccum box tested for seam leaks kindly advise for right equipment Our client using PTFE Sheets for waterproofing of refinery tank foundation

[@eddieweiser3519]

Dear Sir if the material is flat then you can use the above shown equipment to check for leaks. This is available from any Leister authorised dealer

[@qingtaoli7535]

so which standard should refer to？

[@leister-tutorials]

Hi Thank you for your request. This vacuum test can be used to check weld seams in geomembranes for leaks. This test is described in the following standards: American Standard: ASTM D 5641 / D5641M German Standard: DVS 2225 Best regards your Leister Team

[@qingtaoli7535]

@@leister-tutorials many thanks for your prompt reply.BTW，could you share the referenced standards for geomenbrane raw material sampling and testing based on your rich experience？thanks again

[@renantemenez356]

Where can I buy this equipment?

[@Leisterswitzerland]

Hello Renante Thank you for your interest in our product. For a price inquiry please contact your local distributor. He will gladly help you. You can find your distributor under the following link. leister.link/ynr Best regards Your Leister Team

[@dolfdolf]

what foam is used?

[@Leisterswitzerland]

Hello It's a special sealing lip (rubber foam) which works perfect for flat welds and extrusion weld on geomembranes. Best regards Leister Team

[@dolfdolf]

@@Leisterswitzerland is there a proper term? When looking for that foam?

[@Leisterswitzerland]

@@dolfdolf The original sealing lips for VACUUM-BELL and VACUUM-BOX and VACUUM-PLATE- 300 are available as spare parts. The type of material is according to the Leister-Specification. Best regards Leister Team