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  • Users: gjb1
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  1. gjb1

    New Developments in Pumping

    I am looking into developments in pumping technology and am looking at the potential improvements (or possible replacements - emerging technologies). This is very much looking at pumping in the future, with improvements allowed because of advancements in existing technologies (for example...
  2. gjb1

    Statutory Inspections - European CE Requirement

    I understand that there is a requirement, when carrying out a pressure test (during a statutory inspection) of a pressure vessel, to check it's expansion to ensure that it falls within certain limits. Is this correct to ensure CE compliance and does it apply retrospectively (ie old vessels)...
  3. gjb1

    Project Management Costs

    I am interested to know from an initial costing point of view when a project is "sizeable" enough to require a full time Project Manager (or what percentage of the overall budget should be assigned to PM tasks). Should project management be costed in as a task in itself. Often in my...
  4. gjb1

    Statutory Requirement - Testing

    Could anyone tell me if there is a statutiory requirement for the calibration of electrical equipment ie load cells. The reason I ask is that mechanial lifting equipment has a statutory requirement to be inspected annually. If a load cell is incorporated into lifting equipment does what...
  5. gjb1

    Load Cell Calibration

    Could anyone tell me if there is a statutiory requirement for the calibration of electrical equipment ie load cells. The reason I ask is that mechanial lifting equipment has a statutory requirement to be inspected annually. If a load cell is incorporated into lifting equipment does what...
  6. gjb1

    ASME Hydrostatic Test Pressure

    ASME NB-3531 now calls for a hydrotest pressure of 1.5 x Class Rating of valve. I believe the previous ASME code was previously 1.5 x design pressure which is much lower. For example if I have a valve taking say 160 bar the previous hydrostatic test pressure was 240 bar. Under the new...
  7. gjb1

    Crane Manufacturer - Maertens

    I am trying to track down a German crane manufacturer called "Maertens". This trade name is on an old crane so it's likely that they have probably been taken over by someone else or gone out of business. I have done the usual intnet searches and haven't been able to come up with any...
  8. gjb1

    Hot Isostatc Pressing (HIP) Technique

    The benefits of HIP bonding (Stellite hardfacing of valve in this instance) as opposed to welding is one of improved wear and corrosion. Is anyone aware of disadvantages of the HIP bonding technique with respect to valves. Thanks in advance GB
  9. gjb1

    Ground Loading for Temporary Structures

    I am looking for guidance regarding the assessment of ground loading capacity for mobile crane outriggers. Within the UK BS5975 - Code of practise for Falsework gives recommendations to the above. (although not directly related) Is there a US equivalent or What is the current method of...
  10. gjb1

    Mobile Crane Failures

    I am trying to review information relating to mobile crane usage and accidents/failures (types of) data within the UK and abroad. I have come across craneaccident.com but am struggling to find other reliable data/information which could be of use. Any suggestions would be appreciated?
  11. gjb1

    Maximum Steam Velocities

    I have come across a statement saying that the velocity of steam should not exceed a certain % of the "Threshold Steam Speed". Has anyone come across this term ? And if so what value is it referring to. My normal "ruler of thumb" is that the maximum velocity of steam should...

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