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  • Users: howearthmademe
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  1. howearthmademe

    Fishing / Driling Tools Specifications

    Hi, I am working in the Fishing and drilling tools department and I am tasked to find out the right spec for OD tolerances required for these tools becaus apparently there is a need for the operator to kow these values. I cannot find the API specs on the api website. I want to find the right...
  2. howearthmademe

    NPT/BSP/Flange or screwed fittings

    Hi, Can anyone tell me why or a standard rule for picking the best fittings? I explain, if someone can give me a general rule of thumb to pick the best fittings (BSP/NPT/Flanges)ranked say for hydraulic and for pneumatic applications and their limitations would be greatly appreciated? thanks...
  3. howearthmademe

    Linear pump/reciprocating pump

    Hi All, I am designing a test rig for a reciprocating pump and motor assembly to obtain the system curves etc... The problem is how am i going to increase the inlet pressure for this pump (manufacturer suggested an inlet pressure around 10psi-100psi)? If i add a pump at the inlet say a...
  4. howearthmademe

    Description clarification on Ball Valves Primary/Secondary seal??

    Hi all, I am new to Eng-tips and also new to the Valve world... Could anyone help me out?? I got a description for the seating of a 30inch ball valve as Primary metal and secondary soft. Does it mean that the ball is soft seated?? Thanks

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