Trunnion ball valve adapt up-down stem to support the ball,so the pipeline pressure could not force the ball moved.The valve seat is deisinged with a spring to push the seat reaching the ball.so sealing performance will be very well and can last long service life.Torque value is also small.
Fire safe-design Anti-static design Stem anti-blow out design.Doube block and bleed design as per API 6D.
