The rubber seal is used in tunneling projects with tunneling machine. It is fixed on the jecting wall to prevent the slurry, water flowing back into the entrance pit.
The rubber seal is used in tunneling projects with tunneling machine. It is fixed on the jecting wall to prevent the slurry, water flowing back into the entrance pit. It's like flange, also called rubber flange.
In the middle has an empty hole. So it is also called balck eye seal. The out diameter and inner diameter is made as tunneling machine model requirement, and also there are holes, each 5 degree has one hole to fit it one the tunneling machine.
For mostly used in TBM, it's also named launch seal, launching seal.
Note: for 10mm thickness, there is no water drop at the edge of circle.
Package: each one is packaged by plastic film first, then wooden box which fit for ocean delivery
Parameters:
Material: Nature Rubber
Inner support: interwire with nylone wire and cotton wire
Thickness: can made 10mm, 20mm and 30mm thickness
Inner diameter and outdiameter: made as tunnel requirement
+86 1871 286 0976 
sales@jxsolidscontrol.com 
