Basic instructions for 20 inch 4/B balloons (Sphere balloon)

    Inflating Video

    It's best to take 60 seconds from the time you start to inflate until the wrinkles get to 4 cm.

    TIPS) You can mix air and helium gas to save helium gas for 20", 24", 32" 4/B.

    First, inflate with helium gas until the balloon get enough buoyancy. Then inflate with air as instruction written on this page.

    You need to switch air and helium gas as appropriate to get enough buoyancy.

     

     

    Instruction of inflating

    Find the valve and insert nozzle of the compressor gently in it for 3cm.

     

    Slowly inflate the balloon so as not to damage the valve.

     

    Side panel will open with "pop" sound.

     

    Keep inflating until the wrinkles are reduced to 1 cm.

     

    Inflate the balloon to this picture. Stop inflating and wait for few minutes to get the film stretched.

    When the temperature is low or the humidity is low, it's better to wait longer.

     

    Wait a few minutes, then inflate until no wrinkles are present.

     

    Important points

    • Slowly inflate the balloon so as not to damage the valve.
      It's best to take 60 seconds from the time you start to inflate until the wrinkles get to 4 cm.
    • Stop inflating and wait for few minutes to get the film stretch.