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Buckling pin relief valves are designed to provide an emergency shutoff option for industrial applications. Also known as an emergency shutoff valve, the buckling pin relief valve is a highly precise and reliable valve for emergency shutdown and flow diversion. Buckling pin technology follows Euler’s law of compressed columns. Components and Function


In an open position, the emergency shutoff valve comprises 3 basic components:


• Clapper


• Piston or plunger


• A slender, center-less ground pin


The pin is constructed from metal alloys that are corrosion resistant. The alloys also have certain elastic properties that remain constant above normal temperatures. When an external axial force applies pressure on the system, the pin is designed to buckle at an exact point instantly. The moment the pin buckles, the valve is immediately closed. The buckling pin is self contained and self actuating.


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EditSteps

  1. 1
    One end of the buckling pin is attached to the external high pressure system.
  2. 2
    The other end of the pin is attached to the shutoff valve.
  3. 3
    The pressure rate is always set before the valve is put to use.
  4. 4
    When the liquid flow starts to rise, the piston activates the buckling pin system.
  5. 5
    The buckling pin resists the force of the liquid pressure until the set pressure point is reached.

  6. 6
    When the pressure point is reached, the shutoff valve closes and the pin immediately buckles.
  7. 7
    The pin is designed to design to buckle within milliseconds, ensuring instant closing of the valve.

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EditTips

  • The emergency shutoff valve can be customized to any size along with various set pressure points.
  • The set pressure points can be reduced to as low as 5 PSI or even as high but not limited to 6,000 PSI.
  • The vacuum pressure within the valve can be set as low as 1 PSI.
  • Depending on the industry and application, the corrosive capability of the valve can be designed using various alloys and materials including titanium, stainless steel, glass, or even plastic.
  • A sensor can be added to the system to let the operator know of a valve closing.
  • Sensors can also be designed into the system for sensing exact pressures and temperatures.

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Categories: Format | Business | Pages with broken file links

Recent edits by: ian job, WikiHow Intern, Julian taylor

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