Cameron Choke Valve (SLB)
Cameron M3D WILLIS Type Drilling Choke Valve
Cameron M3D WILLIS type drilling choke, a multiple-orifice valve (MOV), is the industry’s preferred choke because of its positive closure and absolute control of downhole pressure. The reason is our WILLIS disc design, distinguished by its easy maintenance and unequaled reliability.
- Each disc has a half-moon shaped orifice, designed especially for mud service
- Differential pressure across the discs holds one face against the other
- Cameron MOVs incorporate an extended sleeve of tungsten carbide