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  2. Maximum allowable operating pressure - Wikipedia

    en.wikipedia.org/wiki/Maximum_allowable...

    This is +10% for PD 5500, and ASME Section VIII div 1 & 2 (with an additional +10% allowance in ASME Section VIII for a fire relief case). ASME has different criteria for steam boilers . Maximum expected operating pressure ( MEOP ) is the highest expected operating pressure, which is synonymous with maximum operating pressure (MOP).

  3. Surge control - Wikipedia

    en.wikipedia.org/wiki/Surge_control

    As a result, inconsistent corrections are made to the system pressure which impact the gas-loaded relief valve's set point. A highly accurate and reliable approach to controlling the nitrogen pressure on a gas-loaded surge relief valve is to use an electronic control system to add and vent nitrogen pressure from the gas-loaded surge relief valve.

  4. Relief valve - Wikipedia

    en.wikipedia.org/wiki/Relief_valve

    A relief valve DN25 on cooling water pipe from heat exchanger Schematic diagram of a conventional spring-loaded pressure relief valve. A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system; excessive pressure might otherwise build up and create a process upset, instrument or equipment failure, explosion, or fire.

  5. Cost estimate - Wikipedia

    en.wikipedia.org/wiki/Cost_estimate

    A cost estimate is the approximation of the cost of a program, project, or operation. The cost estimate is the product of the cost estimating process. The cost estimate has a single total value and may have identifiable component values. A problem with a cost overrun can be avoided with a credible, reliable, and accurate cost estimate. A cost ...

  6. Hydronic balancing - Wikipedia

    en.wikipedia.org/wiki/Hydronic_balancing

    Balancing valves allow the measurement of differential pressures which can be used to calculate a flow. There are various balancing methods, but all involve measuring differential pressures and adjusting them to the correct value by calculating the flow which each one represents.

  7. This $350 valve could save lives and homes during WA ... - AOL

    www.aol.com/350-valve-could-save-lives-120000730...

    They reduce the chance of fire, and explosions, and can reduce the cost of homeowner’s insurance. This $350 valve could save lives and homes during WA earthquakes. How to get one installed

  8. High-integrity pressure protection system - Wikipedia

    en.wikipedia.org/wiki/High-integrity_pressure...

    In traditional systems over-pressure is dealt with through relief systems. A relief system will open an alternative outlet for the fluids in the system once a set pressure is exceeded, to avoid further build-up of pressure in the protected system. This alternative outlet generally leads to a flare or venting system to safely dispose the excess ...

  9. Basis of estimate - Wikipedia

    en.wikipedia.org/wiki/Basis_of_estimate

    A pivot table in BOEMax, a Basis of Estimate software package. To create a BOE companies, throughout the past few decades, have used spreadsheet programs and skilled cost analysts to enter thousands of lines of data and create complex algorithms to calculate the costs. These positions require a high level of skill to ensure accuracy and ...