(1) with the combination of packing seal and mechanical seal, packing seal use high
temperature resistant packing, has the good thermal adaptability, while mechanical seal
adopts high mechanical strength and wear resistance, good hard alloy material, which
guarantees the sealing performance under high temperature conditions.
(2)adopts PTFE as lip shape seal, make the sealing performance much better, seal
reliability of 25 times than rubber seal, and with very strong corrosion-resist ability.