ROTATE Rotary Subs are made from AISI 4145H modified quenched and tempered material.

In addition, it is designed and manufactured according to API specifications as well as with API monogram. They can be used to crossover from connection size to another or as a disposable component used to extend the connection life of a more expensive drill stem member.

Virtually any type of sub can be manufactured to customer specifications.

Float Sub is an important tool in petroleum exploration and drilling engineering. The float sub is connected at upper part of drill bit. The float sub is near the bit connecting thread.

The float sub can also be used at different necessary position of drill string when required. The main application is, when connected with single piece pipe, it prevents mud from coming in and up blocking the hole. When blowout takes place, blowout in drill string will be avoided because nozzle is closed automatically by valve cap of the float valve assembly .

When ordering please specify:

● Float valve type (Model F or Model G);

● Float valve size;

● Connection and O.D of sub.