Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

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

Search results for query: *

  1. Achman

    Siphon effect in pumping systems

    I have a scenario where a sump pump is used to pump liquid 300m away into a tank. Due to presence of solids I don't want to install a check valve on the pump discharge line and have designed a high point in the system to minimize the amount of liquid draining back into the sump when the pump...
  2. Achman

    HDPE Piping for Pump Suctin and Discharge Lines

    Thanks for the replies, I have attached a screenshot of a 3D model that shows a sample pump station. The pipes in green are steel and the blue ones are HDEP. The suction header is DN1000 and the discharge header is DN700. zdas04, which AS code uses a 10 year life for HDEP? AS 4130 implies...
  3. Achman

    HDPE Piping for Pump Suctin and Discharge Lines

    Good Day All, I work in Australia in the mining industry and it seems to be standard practice for the water pumps to have the suction line and the first section of the discharge piping in Carbon Steel and the rest of the pipe in HDPE. Is there a reason why HDPE can't be used for all the piping...
  4. Achman

    Design Pressure of Piping Systems

    Thanks For the Responses, The system is a DN 600 HDPE pipeline. In most of the sections of the pipeline the surge pressure drives the rating but in some sections the pump dead head pressure drives the rating. Using higher PN ratings for the pipeline to be able to handle the pump dead head...
  5. Achman

    Design Pressure of Piping Systems

    Hi Guys, I am designing a pumping and piping system to B3.1.3 pumping water at 900 kPa. The dead head pressure of the pump is 1300kPa. I am trying to find ways to set the design pressure lower than the pump dead head pressure. If we put instrumentation and controls in place to shut the pump at...
  6. Achman

    Piping Wall thickness calculation / Axial Stress

    Hi All, I have been challenged by a colleague about the thickness to be specified for a piping material class for a process plant and would appreciate any input about this. The way I have always been doing it has been to specify the thickness using the relevant code (ASME B31.3)based on the...
Back
Top