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Vitodens Air Vent O-Ring Question

Beaver33
Beaver33 Member Posts: 24
in THE MAIN WALL
My Vitodens 100W WB1B has a leak at the O-ring at the base of the Automatic Air Vent (Part No. 7819 971)? The air vent itself is fine.

I would like to purchase a replacement O-ring. Does anyone know its specifications/material?

Where can replacements be obtained?

Comments

  • hot_rod
    hot_rod Member Posts: 25,186
    if you can remove it, take it to an auto parts store, they have many sizes US and metric. Same with hydraulic repair shops 
    Or try to order it through a Viessmann dealer

    Its probably a straight thread that uses the ring as the seal
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • mattmia2
    mattmia2 Member Posts: 13,115
    if you measure it i'm sure you can find it at theoringstore.com or a couple others.

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