3D Printed Check Valve

A check valve, also known as a pneumatic diode, is a useful pneumatic component that allows air to only flow in one direction.


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    I've been experimenting for some time on how to create 3D printable check valves. This check valve utilizes a silicone disc and ball. This silicone piece is inserted mid-print, minimizing the chances of air escaping in other spots. Once fully printed, the silicone part is put in a sprung position, allowing it to be pushed by air in one direction but not the other.Instructables guide: http://www.instructables.com/id/3D-Printed-Check-Valve/Video:

    Materials and methods

    -PLA or ABS
    -Ecoflex 00-30 Silicone

    -3D printer
    -Thin screwdriver
    -Fine-tipped tweezers
    -Flush snips



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    1abae89a57e65bed05b23ca897b7ade2?default=blank&size=40Chretien Dunjour added this to the todo collection ago
    Fa580e3fc8d1871d32799ae9192e3304?default=blank&size=40qdsace added this to the Engineering collection ago
    Mini img 1037XYZAidan commented ago

    No problem. I don't think it'd be very hard to to do that. You wouldn't need to shrink down the barbed fitting by very much.

    C1b2ec3649c4dd1ce03fae7792269683?default=blank&size=40tinker tinker added this to the hydroponics parts collection ago
    C1b2ec3649c4dd1ce03fae7792269683?default=blank&size=40tinker tinker commented ago

    Thanks a lot for your work on this one. its a very useful time especially for different hydroponics systems.

    Can I ask you how hard would it be to adjust the connectors for 4mm(inner) silicone tubing ?

    thanks a lot.

    0713fc717563d0668167c27ade52f10c?default=blank&size=40Roy Prawira added this to the Things To Make collection ago
    Eb7a0e60922c213fd772948b023a30ec?default=blank&size=40krx added this to the MAKE collection ago
    Aa4fa0fd0aa8b144b0440d76d2b1c330?default=blank&size=40IA-Flyer added this to the RC Parts collection ago
    Mini avatarmeT3DT added this to the oci collection ago
    Mini img 1037XYZAidan published this design ago