Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. DesertEagle01

    Blowdown valve design (Multistage)

    Hi, I have the special situation that our boiler drum blowdown valve starts leaking after a view open / close operations. I have inquired various valve manufacturers and we even tried different hardfacings, etc. but none of the valves work for a sufficient time. Now it is the used valve type...
  2. DesertEagle01

    Book on design of steam systems and condensate removal

    Dear all, we are facing problems with proper condensate removal in "old" steam distribution piping. I was wondering whether there is good literature available describing this topic especially at which distance to put steam traps, start up dewatering devices, slopes, etc. and how to maintain the...
  3. DesertEagle01

    Hot spot evaluation procedure

    Hi, I am currently struggling to work out a "hot spot evaluation procedure". We frequently face the problem of hot spots on pressure vessels with refractory lining. Without an obvious reason a hot spot may arise during operation which in the worst case forces a plant shutdown. I was informed...
  4. DesertEagle01

    Materials resitant to "Benfield" solution

    Hi, we have a CO2 Absorbing plant in Operation which uses "Benfield" lye as absorbant. Most parts of the System are made of Carbon steel. Nevertheless, we face some Problems with the few parts made of Nickelalloy and Chromium Carbide. The Nickel alloy was completely desolved after 1y Service...
  5. DesertEagle01

    Valve materials for Benfield solution

    Hi, we are currently facing problems with valves in a Benfield solution line. We are using ball valves (Class 900, 6"). The ball valves are made of stainless steel (316L) with the ball and the seat being hardened with Chromium Carbide. It seems like the Chroumium Carbide hardfacing is...
  6. DesertEagle01

    Jamming cryogenic service valves with bellow seal

    Hi, I am currently facing some problems with below sealed globe valves used in cryogenic service (down to -40°C). After only two to three actuations, the spindle gets stuck to the plug in the area where the rotational is tranlated to a linear movement. We have around 14bar in the system and...
  7. DesertEagle01

    On/Off valve for syngas service

    Hello, I am in search for a manufacturer for On/Off valves for syngas service for a Syngas purging line. Design conditions: Pressure: 190bar (to atmosphere) Temperature: -33°C/50°C Size: DN50 or DN80 Housing material: Carbon steel We have traces of catalyst in the purge gas which is a very...
  8. DesertEagle01

    Overheating of A/SA516 - Grade 60

    Hy, I am just trying to figure out what happens to the metal grain structure of A/SA516 - Grade 60 material when it is temporary heated to 500°C for lets say 5h and then cooled to ambient temperature during operation of a pressure vessel. Will the material be subjet to embrittlement or creep...
  9. DesertEagle01

    PWHT of 1.7380 (ASTM 217-WC9)

    Hello, I like to adress this post to all collegues who are involved with steels at elevated temperatures like boilers, coloums, etc. I am working on a very special case where the chamber of a heat exchanger made of 1.7380 (apprx. ASTM 217-WC9) was found to have a crack. The codes (EN as well...

Part and Inventory Search

Back
Top