MCT-------Trunnion (Modelo 3)

The design characteristics of this type of valve, makes it specially appropiate for continuous use under severe services conditions.
The outer part of this valve is made up of a body and two body adapters, which together form an easily assembled and maintained valve. The stem has a milled section that fits in an area of the sphere, thus allowing an effective transmission of the torque, without the stem being directly affected by the lateral push of the sphere.
The sphere is mounted on trunnions in all sizes and pressures in wich this valve is manufactured. The sphere and the stem spin freely with the Teflon impregnated metal bearings (DU) that do not require lubrication. The friction coefficient is quite low, which reduces the torque necessary to easily open and close the valves. The seat rings are placed over springs that exert pressure on them, and push against the sphere producing a hermetic seal even with low differential pressure. Both rings have a primary metallic seal seat and a secondary one of a resilient material. All valves can be used in double block and bleed services, since its double seal allows

Trunnion type ball (three pieces type) specifications.