The four-rod type offset connecting rod design can prevent the
radial size of the sealing surface of the butterfly plate from being heated and
expanded due to the increase in temperature, resulting in the jamming
phenomenon between the butterfly plate and the valve body, which effectively
solves the problem of high-temperature thermal expansion bite of the butterfly
valve;
The valve stem internals are made of high-temperature alloy steel,
high-strength design, and the surface of the valve stem is surfacing cemented
carbide, which is corrosion resistant, anti-scratch and anti-blowout;
The stem shaft sleeve is designed with a purge hole to prevent solid catalyst
particles from entering the gap between the stem and the valve body;
Special design according to user requirements
Nominal diameter: 2"~116" (DN50~DN2900)
Pressure level: PN6~PN25
Connection form: clamp type, lug type, double flange type, butt welding type
Body material: stainless steel, alloy steel
Sealing material: stainless steel ring
Operation mode: gearbox, electric, pneumatic