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  1. Kadongo

    Live load Calculations As per Awwa-ASTM-A796

    Hi LittleInch SLW-60 is a 60 ton truck with 6 wheels https://easypipe.ingsoft.com/fileadmin/Statik/Fotos/Artikel/LM1_Tab2_EN.JPG type pressure has no effect in calc "as far as I know".
  2. Kadongo

    Live load Calculations As per Awwa-ASTM-A796

    Hi Everybody, Kindly, I have 2 questions: 1- Could your please tell me how this values of live loads are calculated "considering impact factor of 1.5" - this table is mentioned in AWWA M11 and ASTM-A796? 2- if I have another truck load of SLW-60 as per DIN 1072 with tire pressure of 100kN...
  3. Kadongo

    Series connection of FCV and PRV

    Hi Littleinch Thanks for your reply. The valve must be a Plunger Valve. The service medium is Water The PRV will down the pressure from 50 to 20 bars and in this case we have no control over flow. After that we provide a flow control valve on the same line to provide the required flow...
  4. Kadongo

    Series connection of FCV and PRV

    Hi All, Many Thanks for your help, I need to know what are the considrations to be noted in case of a series connection of flow control valves group and PRV group as per the follow pic: I know that those valves shall fight each other but I am not sure about this? and what is the...
  5. Kadongo

    Hi How do we draw the system cur

    Hi How do we draw the system curve for a pipeline of tap offs, for example a pipline with a 2 tapoffs with a flow rate of 200,000 m3/d I need to draw the system cure in case of on tap off flow rate is 25000 and other case that two tap offs is on with 50000 in total Thanks
  6. Kadongo

    Pump Affinity Laws for Efficiency

    Many thanks for all of your replies
  7. Kadongo

    Pump Affinity Laws for Efficiency

    Hello Guys, Does the Efficeincy of the pump has an affinity law to be calculated by in case of speed change? I have a KSB pump that produce a 20000 m3/day with a VFD, I am estimating speed change effect in power consumption and I need to know if there are a law such as affinity laws to know the...
  8. Kadongo

    Puddle Flange Vs link Seal

    Hello I am new to this forums and it's a gold mine for me, many thanks I want to ask why we always use puddle flange with ductle pipes and we use link seal in carbon steel pipes in penetaration of walls of valve chambers of water transmission pipelines? What about chamber seattlement in Cabon...

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