221 series are radial double faces mechanical seals, especially for conditions of limitation in axial spacing. It can be designed for glass lining tanks (high corrosion) or common stainless steel tanks (weak corrosion).
Temp.：-40℃～250℃（With proper cooling method）
Material：By using different design, it can be used from weak corrosion to high corrosion operations.
Address：No.28 Shupujiang Road, Wenzhou, Zhejiang, 325019, China