The PTFE bellows type mechanical seal, manufactured by Chinabase Machinery, can operate on a temperature range of -45°C up to 250°C on a pressure ≤1.2 Mpa and speed of ≤15 m/s. The stationary ring are made with the V1 Q1 and Q2 materials while the rotary components are made with the B, A Q1 and Q2 materials.
It can be applied to strong corrosive fluids.