Side Entry Subs

A side-entry sub falls under the drilling tool accessory category to allow various drilling, fishing, wireline operations through drill pipe without interference from the rig's top drive unit. Circulating sub is manufactured to the following specs connections, lengths, weights and material grade.

Crossover Side Entry Subs are manufactured from AISI 4140/4145. They are manufactured from one piece. They are typically rotary shouldered pin by box with 2” 1502 female hammer union, but can be manufactured with any size and style connection.

These can be made Rotary Shoulder Box Up x Pin Down with the ½ union on the side, we can build with any combination of the connections placed anywhere on the sub. All of Crossover’s Side Entry Subs are Integral manufactured which means that the sub is one piece and has no heat affected zone from welding the ½ union onto the body.