Greetings,
I have made extensive use of PFA/Viton and PFA/Silicone encapsulated o-rings in Tube-Turns quick opening covers and many static o-ring seal applications in various chemical services. The cost is really inexpensive when you order from www.creavey.com who makes them to order.
Greetings,
We have hot water systems that use remote generated steam in unfired section VIII heat exchangers and associated pumps, valves, and expansion tanks. Therefore, the system is not within the scope of Section IV, but the conservatively designed Section IV relief valves seem to be the...
Greetings,
I submitted an interpretation request to ASME on this exact issue and expect a response in the next issuance of Interpretations Vol 57.
I respectfully disagree with the assertion that simply because a vessel is Code stamped that it must comply with all Code requirements. It is my...
Greetings,
The following link to Penn Machine's website will give you the pressure-temperature for a variety of materials. I found this site in a post I read on this site.
Best Regardshttp://www.pennusa.com/pennpage/directory/catalog/nonshocktempchart.html
Greetings,
I want to make sure that I am correct regarding the WPS designation for SA-403 pipe caps.
I was told by a colleague that in order to be considered WPS, the pipe cap not only needed to be seamless, but also needed to be formed in a precision mold.
I read the ASME SA-403/SA-403M...
Greetings,
Metal o-rings are an option. I used them successfully for a high temperature Inconel heat exchanger. At 800F you are probably talking about silver coated Inconel or Inconel X. There are many items that must be considered in order to make a reliable seal (e.g., surface finish...
Greetings,
Try this thread for some scans of flat face design sheets for welding neck and slip-on flanges http://www.eng-tips.com/viewthread.cfm?qid=202228&page=1. I am still looking for flat face flange design sheets for blind and ring flanges.
Greetings,
Don't forget to look at the other notes. Some specs list both seamless or welded tube and provide the allowable stress for seamless in the table and note derating factors to be applied depending on the type of welding used during manufacture (e.g., single weld 0.85, double weld 0.8...
I found out that the applicable standard is MSS SP-114. I will see if I review a copy at work and see what it contains. I would still like any tabular data anyone can provide.
Thanks
Greetings,
The 150# class fittings I am most interested in are 300 series stainless steel. I was mistaken when I referenced B16.11 which you correctly state lists a minimum 2000# class.
Since these 150# class threaded fittings are common in different steel alloys, the question is what...
Greetings,
Does anyone have tabulated Pressure vs. Temperature data for 150# class forged steel threaded fittings (for multiple metals would be great) conforming to B16.11? I even found a few 1000# class 316 fittings in a parts bin at work and wonder if tabular data for that odd class is...
Greetings,
I wrote the sight glass section of our company's mechanical integrity standard and have used sight glasses (including those as the pressure barrier for process cameras) since the 1980's. I would only specify a fused-glass unit and not trust a tempered glass unit in pressure service...
Design of Flanges for Full Face Gaskets - Engineering Department Bulletin No. 45.
Slip-on worksheet.
Last I have. Would love a Full Face Blind and Ring flange worksheet.
Best Regards...
Greetings,
This is my first attempt at uploading a file in this forum. The link is to a .jpg scan of a Full Face Welding Neck Worksheet. It looks like it was from an earlier version of Bulletin 502 (before Edition VII). It is also identical to the worksheet in 502 ed. VII for a slip-on...
Hi Mike,
Thanks for your reply. Bulletin 502, Ed. VII has the design worksheet and an example for a full face slip-on only. The fax I have contained the actual cover of Bulletin 45 so I know it exists. It contained a worksheet for a Weld-Neck so I am sure there are more.
By the way, I am...
Greetings,
Does anyone have a copy of Taylor Forge's "Design of Flanges For Flat Face Gaskets - Engineering Department Bulletin No. 45". I have a 1999 fax from an engineer at McInnes Rolled Rings with a few pages describing the design method and the design worksheets for slip-on and weld neck...
