The groove is positioning and stabilizing the PTFE gasket into the very easy sealing area. Combining the flat QVF SUPRA-flange Together with the conventional GMP gasket outcomes in a flange link by using a small useless Room. Pipelines at an angle of roughly 5°can for that reason be wholly drained. https://siliconcarbideproducts37037.losblogos.com/29204159/what-does-glass-lined-reactor-applications-mean