The Ravetti MICROSTOP® is suitable for flow stop of branches on low pressure gas riser columns from DN 1" to DN 3" without leaks, maintaining continuous gas supply through the by-pass tube of the same size of the riser.
The equipment complies with the resolution No. 236/2000 of the Regulatory Authority for Electricity and Gas, concerning maintenance works on standpipes in galvanized steel or transfer works of utility connections from old to new pipes.