The Mark 33 is a motor-operated valve featuring the Jordan sliding gate seat and heavy-duty industrial motor for proportional (resistance), on-off, 4-20 mA electronic control. The Mark 33 delivers exceptional pressure drop abilities and greater utilization of the motor torque output.

The Mark 37 is a motor-operated control valve that combines a state-of-the-art electronic linear actuator with the exceptional performance of Jordan's sliding gate valve seat design. It’s superior accuracy makes the Mark 37 an ideal final control element in distributed process control systems.

The Mark 39 is a motor-operated, three-way control valve that combines the performance of the Jordan sliding gate seat with the time-proven quality of the Honeywell industrial motor. The Mark 39 utilizes two sets of seats to handle higher than usual pressure drops while maintaining ANSI Class IV shutoff.

The Mark 75 has all the benefits of the sliding gate seat design, coupled with the lightweight, compact wafer style body.