Blow-down subs

When required, a blow down sub is placed at the top of the rod string once it has been disconnected from the top drive head. It’s used to direct the airflow down the inner tube to clear a sample blockage.

OD Complete length Ref Technidrill
95,5 mm 200 mm 72.1460-
101,6 mm 200 mm 72.2260-
101,6 mm 200 mm 72.2360-
114,3 mm 200 mm 72.3260-
114,3 mm 200 mm 72.3360-
118,6 mm 200 mm 72.4460-

Fiche technique

[Translate to Anglais:]