• Vacuum outlet G. 1/2” threaded connection integrated with quick-release
connection for 557.1007 safety jar
• De-pressure excess safety valve (for 557.1001 only) with anti-clogging system
• Quick I/0 push switch-button, to stop the suction
• Maximum supply depression; -950 mbar
• Suction adjusting system; with membrane
• Standard vacuum supply connection; ISO G. 1/4” M