Thank you again, LittleInch! My application is identical to the other one...air at 1350F @650 psig and velocities between 150 to 250 ft/s. the system thermal cycles 3-5 days a week (on 12 hours/off 12 hours). Conceptually I would think the pitfalls associated with expansion joints installed in...
Thanks LittleInch -
I appreciate your comments.
A system like this exists in Germany but I am having a hard time time finding any information concerning the manufacturer or details concerning the design. 1350 deg F at 650 psig is an the actual operating condition.
I am not experienced in using refractory line pipe. I would assume it is very difficult to make modifications after installation. we have always shied away from it due to concerns with particulate in the stream and the potential for plugging small orifices in equipment downstream. Do you...
I am looking people (someone, anyone) who have experience with high temperature pipe-in-a-pipe systems. I was told of a facility that uses a such a system for hot air at 1350+ F and 650 psig. The inside pipe (12") is vented to the outside pipe (~20") such that it is not pressure retaining; it...
I have been looking at a PDP (Parallel Disc Press) butterfly that is being offered in the USA by a company called "Critical & Severe Service Products, LLC (www.critical-severe.com). I believe they are actually manufactured in Korea and distributed by Critical & Severe Service Products in the...
Balanced flow meters are slightly different than what you describe knapee. They were developed by NASA due to the fact they needed very precise flow measurements with little or no upstream and downstream straight lengths. A+flowtek is a NASA spin off company. They market these plates as drop in...
Yes, it is similar...A+flowtek mentioned something about patent infringement...who knows. the A+flowtek meters typically have one center hole and six or more holes on a circumference sharing the same center point as the center hole. Emerson does not claim the same accuracies. I would love to...
I should have stated that we are a reasearch and development laboratory where flow measurement is key to our data. We have have tried them....I am trying to obtain other people's personal experience with this equipment without biasing their comments based on what we are seeing. Any information...
Has anyone tried A+ flowtek's balanced flow meters (http://www.aplusflowtek.com)? I am trying to find people with first hand operational experience to support or dispute their claims of flow metering accuracy to +/- 0.5%. They are a NASA spin-off company. I also know that Texas A&M did some...
Has anyone tried A+ flowtek's balanced flow meters (http://www.aplusflowtek.com)? I am trying to find people with first hand operational experience to support or dispute their claims of flow metering accuracy to +/- 0.5%. They are a NASA spin-off company. I also know that Texas A&M did some...
4Pipes,
I appreciate your input and is the exact phrase you noted from B16.9 that has ne stumped. When you have two 16" NPS 0.500" wall pipes whose maximum allowable pressures differ by 50 psig simply due to the manufacturing tolerances called out in the material specification (SA312 vs SA358)...
Stonecold, I agree but the ASME Codes already have safety margins built into the allowable stress values for Code approved materials. Also, at this temp, pressure and diameter, I am presented with few choices other than innconnel, hastelloy and other exotic alloys that are economically...
We are currently investigating the installing a 16" nps 0.500" wall pipe to carry 1200F air at 450 psig. Due to the manufacturing dimensional tolerances of SA312 Type 316, the maximum allowable working pressure calculated per B31.1 is below the design pressure of 450 psig. Instead we have...
I would appreciate any help you guys can give me on this issue.
We are currently investigating the installing a 16" nps 0.500" wall pipe to carry 1200F air at 450 psig. Due to the manufacturing dimensional tolerances of SA312 Type 316, the maximum allowable working pressure calculated per B31.1...
I am not sure what the law is in Canada. In the US, I believe the edition and the addenda of the ASME Code to be used in EACH INDIVIDUAL PLANT is called out in the FSAR and in Tech Spec's of the plant. No two plants will necessarily use the same edition and addenda; typically it will depend on...
