Full Bore Trunnion Top Mounted Ball Valve (QS647Y-600Lb)

Frictionless sealing structure, upon opening the valve the ball will be detached from the seat and then rotating. As there is no scraping between seal face this valve is quite durable.

Upon closing the valve the ball is kept a certain space from the seat during the process of rotating. With the rotation of the ball, flow rate will be reduced and flow velocity will be increased to make the seal face clean.

Small volume compact structureeasy operation and installation in-line repair accessible and long service life.

With electric or pneumatic deviceremote control may be effect to deal with dangerous working conditions thus to ensure personal safety.