Integral body design, flange or butt welded preferable Double Block and Bleed High strength integral stem design, precisely guaranteed ball location Anti-blow-out stem design 2 sets of Oring seal plus fire safe design on stem, greatly avoided leakage Anti corrosion, low friction coefficient bearing Bi-direction seal High performance Nylon and PEEK seat, grantees sealing under low pressure Sealant injection can guarantee the seal of the stem and seat under emergency Adopt unique adjusting seat ring design(seat ring is able to move forward & backward), enables to change stem, ball, seat ring, and seal on-line. Low torque, easy operation Anti static design Equipped with mounting plate, convenient in mounting actuator anytime Fire safe, when seat is destroyed in fire, the metal seat ring will contact the ball to provide sealing
