Contromatics Unibody Ball Valves

Bottom Entry Stem As safety is of primary concern, Contromatics utilizes a bottom loaded stem in all ball valves. The stem is retained by a machined shoulder in the body of the valve that mates up to a shoulder on the stem.	Threaded Seat Retainer
Threaded Seat Retainer The method by which a unibody, threaded end ball Valve retains the seat/ball assembly is critical to its performance and to the safety of those who install and operate these valves. Contromatics utilizes a safe, responsible and accurate method to accomplish this function by threading the seat retainer into the valve.
Ball Construction Every Contromatics industrial valve is of a solid ball construction, which provides structural integrity and reduced flow turbulence not available when "hollow" or formed balls are used. There is a hole in the stem slot of each ball to equalize pressure between the body cavity and the flow stream, when the valve is in the open position. This feature prevents seat damage due to thermal cycling by allowing media trapped within the body cavity (between the outside of the ball and the inside of the body) to expand and re-enter the general flow stream through that drilled hole when the valve is in the open position.	Solid Ball Construction
Optional Seat Materials Contromatics offers a variety of seat materials that are designed to meet the most demanding applications. Each seat material has its own performance characteristics enabling the user to tailor the valve to the specific application. A lower operating torque is realized by the use or pressure equalizing seats. The outside diameter of each seat is produced with slots that allow the media to flow around the upstream seat. This equalizes the pressure on both sides of the upstream seat, which result in the reduction of the torque required to operate the torque required to operate the valves.	Optional Seat Materials