This sub breaks the glass by setting down the dump bailer on top of a plug. The weight of the dump bailer compresses the spring and forces the sleeve into the glass. Large bore through the sleeve ensures rapid cement flow onto the plug. The glass disk is sealed with O-rings to prevent cement from leaking into thread connections and ensures the glass does not get damaged when tightening the assembly. Simple maintenance includes cleaning, no redressing of shears is required.
Dump Bailer
