Drillmax® Model GCA
Full Flow Flapper type for automatic fill with Carbide Insert Port
The Model GCA is identical to the Model GA but adds an automatic fill feature that permits automatic filling of the drill pipe from the bottom and measuring differential pressures from the surface. The Model GCA helps prevent pressure surges that could cause formation damage.
Model G, GA, GC, GCA and GS sizes
1F2R | 4F |
2F3R | 4FGS* |
3F | 5R |
3 1/2 IF | 5F6R |
4R |