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Recent content by DW1006

  1. DW1006

    Pressure Loss accross a valve

    Cheers for the links GBTorpenhow. That's a very good representation as well.
  2. DW1006

    Pressure Loss accross a valve

    This facility conducts aerodynamic testing to assess the stability and control of aircraft. Scaled models of the aircraft are equipped with strain gauges, and as the tunnel is operated at different Mach numbers, the model is systematically traversed to collect data on its performance. The Mach...
  3. DW1006

    Pressure Loss accross a valve

    Hi, thanks for the reply, some good stuff for me to look into. Sorry, I should have said, we are operating a High speed Wind Tunnel blow down facility. Running up to Mach 3.7 By all, I was referring to clean dry compressed air. However, you are right, we don't completely drain down to zero, we...
  4. DW1006

    Pressure Loss accross a valve

    Afternoon, I am trying to work out how you calculate the pressure loss across a valve? We have a stored volume pressure at 600psi contained in 6 vessels, 90ft long 6ft internal diameter and around 45mm thick. On demand, we can release all this to atmosphere in a matter of around 40 seconds...
  5. DW1006

    Spec'ing up new Pressure Vessels

    Cheers for the link, very useful!
  6. DW1006

    Spec'ing up new Pressure Vessels

    All, Just looking for a bit of a brain dump of things to consider when spec'ing up new Pressure Vessels. We are going to replacing some of our air farm systems due to aging assets, primarily vessels and connecting pipework. Just looking for some input as to considerations/improvements I can...
  7. DW1006

    UK PSSR Vs Simple Pressure Vessels (Safety) Regulations 2016: Great Britain

    Hello everyone, I am seeking clarification on the circumstances that determine whether a system falls under the Simple Pressure Vessels (Safety) Regulations 2016:Great Britain or the Pressure Systems Safety Regulations (PSSR). Currently, in our company, the air farm and associated pipework...
  8. DW1006

    Selecting the correct standard for a new Pressure Vessel

    thanks again everyone, some great info shared again, really appreciate everyone's input.
  9. DW1006

    Selecting the correct standard for a new Pressure Vessel

    cheers!
  10. DW1006

    Selecting the correct standard for a new Pressure Vessel

    Based on the additional information ive found out, it appears that the vessel's internal volume is 1.95m³, and the operating pressure is 10 psi (approximately 0.689 bar). As the vessel's bar litres is well below the 250 bar litres threshold, it won't be subject to the Pressure Systems Safety...
  11. DW1006

    Selecting the correct standard for a new Pressure Vessel

    Hi, cheers for your input. Ill try obtain some extra details around the size, ive its a 3rd party company thats designing it as part of larger project. What I do know is its will be in the UK, aerospace industry, and will form part of a new "test rig" and vessel will be representative of...
  12. DW1006

    Selecting the correct standard for a new Pressure Vessel

    I am currently in the process of ordering a new pressure vessel from a manufacturing company. They have requested that I specify the standard to which the vessel should be built, considering the appropriate safety factor for its construction. The vessel is expected to operate within a...
  13. DW1006

    Pressure Testing Pipework (CWP / DP and WP)

    Cheers. For clarity, the pipework once certified to operate at 600psi max, and will contain clean dry air at ambient temperature. It will never operate at an increased temperature. I guessing, this particular section of spool with the valves stamped 740CWP at 445°F must have been originally...
  14. DW1006

    Pressure Testing Pipework (CWP / DP and WP)

    Cheers all for your advise and input. Regarding safety questions, all extremely valid and all correct in what you are saying. Due to the nature of the facility and what it is used for, water is not an option. Pressure test will be carried out in a controlled, restricted area, and by competent...
  15. DW1006

    Pressure Testing Pipework (CWP / DP and WP)

    So, ive been doing a bit of research, and would people agree with the following. I think when we talk about hydrostatic testing this is CWP. My understanding is I don’t think the water is actually heated, but running an ambient test for anything that operates up to 230C is good enough.. CWP is a...
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