Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

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

Recent content by TNH

  1. TNH

    Reliabilty of submersible pumps

    Thanks to all for responding. I think I should give an update and clarify some of the questions raised. For the size of the submersible pump in question there are very few good vendors around. Both Pleuger (owned by Flowserve) and Weir have confmd. that 11 kV motor is not a possibility so if we...
  2. TNH

    Reliabilty of submersible pumps

    For approx 500 kw sea water lift pump for an offshore application we are debating between submersible or vertical line shaft pumps. Will appreciate if end users who may have operated both types can throw some light on availability and reliability of these type of pumps. Also is 11 KV power...
  3. TNH

    Liquid ring vacuum pump

    Vendor's web pages may be of help. The names that come to my mind are NASH, HICK HARGREAVES, SIHI etc.
  4. TNH

    Flush plan for heavy oil pump

    High temperature metal bellow seal is the right answer for your application as suggested by some. Dual seal may still be required from safety standpoint. Check with your safety gurus if they can permit hot oil at 340 degC leaking and doing damage to personnel and asset. Note that single high...
  5. TNH

    Can You Spec A Pump with Negative NPSHA/NPSHR

    It happens for some applications. Vertical canned pump is usually the answer. The pump is installed inside a pit/tank and length is decided in such a way that enough NPSH is made available because of the static head above the pump suction.

Part and Inventory Search