Gas Control Valve: Failure, Testing & How To Use it! - PowerPoint PPT Presentation

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Gas Control Valve: Failure, Testing & How To Use it!

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A gas control valve is a device that supplies and balances gas pressure in a pipeline. When it works properly, it opens and closes in response to changes in gas pressure. Gas valves can occasionally fail, which can cause gas to flow uncontrolled through a pipeline. – PowerPoint PPT presentation

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Title: Gas Control Valve: Failure, Testing & How To Use it!


1
Gas Control Valve Failure, Testing How To Use
it!
A gas control valve is a device that supplies and
balances gas pressure in a pipeline. When it
works properly, it opens and closes in response
to changes in gas pressure. Gas valves can
occasionally fail, which can cause gas to flow
uncontrolled through a pipeline. What Causes a
Gas Control Valve to Fail? The most common cause
of a gas control valve failing is aging. As it
ages, it may become less reliable and fail to
open or close in response to changes in gas
pressure. Occasionally, it will fail due to a
mechanical defect. Another rare cause of failure
is corrosion of the valve's internals. When a
control valve fails, gas can flow uncontrolled
through the pipeline. This can cause
environmental damage and risk of harm to
personnel. It's important to notify personnel of
any
2
  • gas hazards and to take the necessary precautions
    to avoid injury. If you notice a gas control
    valve that appears to be failing, you should
    contact your pipeline operator immediately.
  • How to Properly Use a Gas Control Valve?
  • A gas control valve, also known as a flapper
    valve, is a valve that allows gas to flow in and
    out of a container. It is used in gas lines and
    gas ranges.
  • To use it, first determine the type of valve that
    needs to be used. There are two types of valves
    horizontal and vertical. Horizontal valves are
    used in gas lines, and vertical valves are used
    in gas ranges.
  • Next, determine the type of gas that needs to be
    controlled. There are three types of gases
    natural gas, propane, and butane.
  • Finally, determine the connection between the gas
    control valve and the gas lines or range. The
    connection can be through an attached hose, or it
    can be a gas line connection.
  • Now that the necessary information has been
    gathered, it is time to use it. To open the
    valve, first, locate the handle. Then slide the
    handle to the desired position and press it
    down. Locate the handle and slide it to the
    opposite position to close the valve. Then press
    the handle down.
  • How to Test a Gas Control Valve?
  • Today, well show you how to test a gas control
    valve. This is useful if you are ever servicing
    or rebuilding gas appliances. First, gather your
    tools. You will need a flexible spanner, a socket
    wrench, a screwdriver, and a hammer. Next,
    locate the gas control valve. It will likely be
    on the wall near the gas appliances.
  • Step 1 Disconnect the supply line to the gas
    valve. You will need to use the socket wrench to
    take the screws out of the supply line. Make sure
    to label the screws with a piece of tape so you
    can re-install them correctly.
  • Step 2 Turn the valve off by turning the knob to
    the off position.

3
Step 6 Use the slip-fit style head of the
flexible spanner to tighten the control valve
onto the screwdriver. Make sure it is tight
enough so that it does not move. Step 7 Use the
socket wrench to re-secure the gas valve onto the
screwdriver. Again, ensure it is tightened
enough, so it does not move. Step 8 Use the
universal joint type head of the socket wrench to
turn the valve handle. Make sure it is turned to
the left or right. Step 9 Test the gas control
valve by turning on the gas. If the valve works
properly, the gas will flow from the supply line
and into the appliance. If the valve does not
work, there may be a problem with the valve or
the line. Step 10 Test the line by putting a
lighter into the appliance. If the flame blows
out, the line is not properly connected. If the
flame stays inside the appliance, the line is
properly connected. Closing If the gas control
valve is not functioning properly, it may cause a
gas leak and result in an unsafe conditions. By
testing it, you can determine if it is
malfunctioning and take any necessary steps to
correct the issue.
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