The YHGSF series is a double-layer jacketed glass reactor (reaction kettle) in GG-17 high borosilicate glass with PTFE vacuum sealing, for chemical testing and reaction work. Verified specifications: working temperature from −80°C to 200°C, vacuum degree −0.098 MPa, stirring speed 0–650 rpm, automatic operation, CE certification. Sizes run from 10L to 50L.