▪ Rounded polished edge of the disk ensures the concentricity of the disk and seat, keeps the valve in low torque, good sealing and long service life.

▪ Replaceable seat design with low of maintenance.
▪ Two-stage sealing design effectively prevents the medium from leaking. Primary seal is provided by preloaded contact between flatted seat surface and rounded polished disc-hub area. Secondary seal is formed by the interference fit of seat/shaft/hub.

▪ Top built-in bearing provides the best support, reduces the friction and lengthens the service life.

▪ Self-adjustable dual-V gland packing, with the automatic compensation and the two-way sealing characteristics, prevents objects entering into the body through along with the stem.
▪ Molded-in O-ring provides positive flange sealing with no requirement for gaskets. The position hole is convenient for installation and easy for guiding the flange.
▪ ISO 5211 top mounting plate available, for easy actuation.
▪ Optional: actuator