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  • Users: almacphe
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  1. almacphe

    wet service pipe insulation

    I've got a client who wants to insulate their water distribution pipes for a septic field i.e these are perforated PVC pipes. I've never heard of insulating perforated pipe as it would just soak everything inside. Perforating the insulation would create an area for heat to escape. It seems a...
  2. almacphe

    Pipe line designations

    Hello, I am wondering if anyone can point me towards a common pipe line numbering system. I work for a consulting company and all of our clients basically have different line numbering systems. I have seen reference on a client's line numbering legend to ASME B31.3 or CSA (Canadian stds), but...
  3. almacphe

    Self-priming pumps - how do they work?

    Hello, I am curious about the principle of self-priming pumps. From what I can find they can't actually "prime" a pump for start-up but rather keep it primed in the event air gets into the line. Is this true or is it possible to get a self-priming pump that will prime a pump for start-up so...
  4. almacphe

    safety factor for operating above UEL

    I am trying to find some references, such as codes and standards, that give an idea of acceptable safety factors for gas concentrations when running a system above the upper explosive limit. Does anyone know of any standards or codes that address this? THANKS

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