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  • Users: Hari Mech
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  1. Hari Mech

    Vapouriser in Pilot safety valves (Cryo)

    Hi All, Can anyone explain me whats the purpose of adding vapouriser as an accessory in pilot valve usually in cryo application? Also I need to know whats inside a vapouriser and its working principle? Whats its role in gas and liquid application? Example: Anderson greenwood 249 & 449 pilot...
  2. Hari Mech

    Safety valves Vs Water hammer.

    Hi Obturator and others, I need to know why valve sizing is been done without considering water hammer scenario? If there is a safety valve in the discharge line with a shutoff valve at the end, when I close the shutoff valve suddenly, which leads all the inertia of the flowing liquid to act...
  3. Hari Mech

    Tolerance range

    Hi All, Please guide on below query, have a look on the attached pic. where to do you get the MAX tolerance limit for this, is it from unspecified general tolerance ? Unspecified tolerance for the attached is ± 0.015 . What will be the max limit? Thanks in...
  4. Hari Mech

    Tolerance Min/Max

    Hi Obturator & Others, Please guide on below query, have a look on the attached pic. where to do you get the MAX tolerance limit for this, is it from unspecified general tolerance ? Unspecified tolerance for the attached is ± 0.015 . What will be the max limit? Thanks in...
  5. Hari Mech

    Current trend in Saftey valve industry

    Hi Obturator & Others, I am keen to know about the recents trends on safety relief valves which are spoken all over the world. Can you share your views on global market for SRV, ongoing issues ...etc.. Also please explain How far the recent trade war b/w U.S and china & Saudi Aramco drone...
  6. Hari Mech

    Layout explaining where PRV is used in LNG plant. (Critical applications)

    Hi all, I am working on creating a PPT to explain customer where PRV can be used in LNG plant. The objective is to focus on every process inside the plant. For example Liquefication, I need a schematic diagram of liquefication process explaining where the PRV can be installed in it. (inlet or...
  7. Hari Mech

    Blowdown (Reseat pressure) Vs Operating pressure. (ASME Sec VIII)

    Per ASME Section VIII, system pressure (Operating pressure) Should be always less than blowdown pressure range. This makes sure that the valve will reseat again after discharge before the operating pressure is reached. I have a customer whose operating pressure is falling within my valves...
  8. Hari Mech

    Blowdown (Reseat Pressure) of 400 Series AG Pilot valve?

    Can anyone answer the Blowdown %(Reseat Pressure) of 400 Series AG Pilot valve?

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