Method for sealing top cover of coffee machine boiler tank to lower section has rectangular seal with holes in corners for the clamping screws

摘要

The boiler tank has a lower section (2) containing the heating element (22) and outlet valve (23) and with the top cover (1) rectangular flanges (11,21) through which bolts (3) and nuts (4) pass to assemble the tank. A resilient seal plate (5) is interposed to seal the tank.