Well Control Valves - Standard Service
M&M Oil Tools kelly, safety, top drive and internal blowout preventer valves are the preferred solution for drilling and workover companies to control flow in wellbore tubulars.
Our patented EZ-FLOW CARTRIDGE™ takes the quality of our standard service valves to a new level. This valve’s unique floating ball and spring-loaded seat design forces pressure and flow through the seat, not around its exterior. This eliminates unreliable single direction seat seals, erosion and fouling/binding frequently seen in competitive designs. The floating vented ball and double floating seats guarantee differential pressure by acting only across the downstream side of the ball & seat to minimize the load, prevent distortion of the ball and protect seat support arms. Combining these features with a proprietary stem bearing reduces the torque required to operate the valve by 50% compared to other designs.
The EZ-FLOW CARTRIDGE™ ball valve features precision positive quarter-turn rotational stops for fully open and closed positions to prevent interference with tool passage or fluid erosion that occurs in competitive products. These bi-directional valves hold pressure from above or below. Each feature soft and hard seats for enhanced sealing under low and high pressure conditions.
- Safety valves are designed to quickly stab into drillpipe, tubing or casing if a kick is encountered. Installed at each end of the kelly, or below the top drive, the valves control flow from the wellbore and protect surface equipment from high pressure kicks. The upper well control valve can also function as a mud saver valve by preventing mud loss and hazardous rig floor conditions when tripping pipe.
- Available in one- or two-piece design. A compact one-piece design is ideally suited where space is at a premium or where handling weight is critical. Its smooth OD allows this valve to be run anywhere in the drill string. The two-piece design is available when larger internal diameters are desired.
- Offered with a variety of threads including left-hand connections for upper well control applications that are matched to maintain drill string tensile strength capacity.
M&M’s API Q-1 Quality Management System provides full traceability. Drillpipe threads conform to API 7-1. Each valve is provided with material certificates, test reports and Certificate of Conformance.
The EZ-Flow Cartridge™ has patent protected technology.