ATKB3 Series of Three Eccentric Butterfly Valve, both valve disc and three sealing ring are designed in special three eccentric structure,with characteristics of impact structure,good shut-off performance and long operation life etc, so it has both regulating and shut-off functions;Due to the adoption of the three eccentric structure design, when it is opening and closing, the valve plate and the sealing ring can be quickly disengaged (without friction design), which effectively prevent the seal ring from wearing; The valve seat and the sealing ring adopt the replaceable structure design,allowed client to repair and replace conveniently;Its low torque advantage, can really realize the bidirectional zero leakage, small flow resistance and large rated flow coefficient,which could be widely used to cut off and regulate the processing fluids, such as metallurgy,oil,chemical engineering,electric power,natural gas.
● Double eccentric soft seal butterfly valve is a new type of butterfly valve, the rubber seal ring is completely removed from the metal seat when the butterfly plate is fully opened, thus increasing the service life.
● For DN1200 and below caliber, the valve body sealing surface adopts a unique rolling technology to press the stainless steel seat into the valve body/or surfacing, and for large caliber (≥1400), the supersonic spray valve body sealing surface is used, and its binding strength can reach 50MPa.
● The rubber seal ring and the butterfly plate are adjustable and tightened by the pressure ring, so that the sealing compression is controlled in the best state.
● The valve body and the butterfly plate are made of ductile iron to ensure sufficient strength of the valve. The sealing ring is made of rubber and the valve seat cone sealing surface makes the sealing more reliable and excellent anti-corrosion performance.
● The inside and outside surfaces of the valve body, plate, pressure ring and bracket are sprayed with epoxy resin.
● Nominal diameter :DN150~2600
● Nominal pressure :PN 16/25/40 ASME Class150/300
● Medium temperature :-29~425℃
● Connection mode: Flange type/wafer type/lug type
● Valve cover form: standard type
● Body material: stainless steel
● Valve seat material: F304/F316+ surfacing or spraying hard alloy layer
● Flow characteristics: approximate equal percentage
● Leakage level: IV /V /VI
Pulp and paper, oil and gas, food chemical industry
