Glass and Pressure

The operational pressure rating of any material is a function of its ultimate tensile strength, and will be related to a test pressure. For larger vessels and some pipework components it is common to find the structure manufactured in steel with a glass coating on the inside.

As for explaining the qualities of the glass to a potential customer, that is an Unique Sales Proposition that the vendor must find, and a response is therefore unlikely to be forthcoming on a public medium such as CR4.

Dear MR. P W Slack, Thanks for your PROMPT REPLY I would rather request your good self to reply to a question if you know the answer or else ignore it and let others do their work. I understand from your remarks that u have not understood the question. Even a person who is not related with engineering but knows a litle bit of science will tell that teh pressure withstanding capacity of a product is related directly with the tensile strength. Once again I am NOT talking about GLASS COATING but of Glass all alone bu itself when used as a VIEWING source into the vessel something like a glass used in the wind shield of a motor vehicle. Best Regards Rasesh Vakil

The other possibility is that there is no clue in the original post as to the shape of the glass, whether flat or cylindrical, at that time. Therefore it is open to misinterpretation by any interested reader.

Dear Mr. P. W. Slack, I do hope I am not wasting your precious time Mr. Slack. If you read carefully, all details have been mentioned in the original post and I take pleasure to once again mention the shape of the glass : 1) Round Toughened Soda Lime Glass 2) Rectangular / Obround [elliptical ends / full radiused ends] 3) Borosilicate Glass Tube with respect to Wall Thickness & Length. Here if I am not mistaken then the OD i.e. Outside Diameter will also play an importand role. What I request is "HOW DO I CALCULATE PRESSURE WITHSTANDING CAPACITY OF THE GLASS?" I do understand that temperature, media and acidity of media do play a VERY IMPORTANT role in determining the pressure withstanding capacity of a glass. Here I would like to understand how to co-relate all these 4 to get the best suitable product. Please note that there is no scope of TRIAL & ERROR as damage or fracture to the glass during operation may lead to heavy losses to the organization by way of compensation to either the injured personnel or to the public. I do hope u understand the importance of not such an important product or just let us say an ACCESSORY TO AN EQUIPMENT in the FERTILIZER, PETROCHEMCIAL, CHEMCIAL or any other process industry. By the way Mr. Slack, may I have the pleasure of your work details as well as your location. Regards Rasesh Vakil

I have seen a good site for Scientific Glass Equipments.

www.sabarscientific.com