Excess flow valve fig. XLC 380/480 PN 16/25

The XLC 380/480 control valve, hydraulically operated and with no need for additional elements, detects an unusual increase in flow and closes completely, regardless of upstream pressure variations.

Features

• GJS 450-10 ductile iron body and cover.

• GJS 450-10 ductile iron and stainless steel internal components.

• Stainless steel position indicator.

• Stainless steel pilot circuit.

• Stainless steel adjusting device, needle valves and flow stabilisers.

• Stainless steel seat.

• RAL 5005 blue epoxy coating applied by fluidised bed technology.

Applications

• Installed in the outlet pipework of a tank or reservoir to close and stop the water supply in the event of an excessive, sudden increase in flow caused by a pipe burst, or unexpected or unwanted demand that could depressurise the system.

• Protecting a gravity main or trunk line, in the absence of SCADA and flow metering, against possible negative pressure conditions caused by a pipe burst or high unauthorised consumption.

Reference standards and flanges

• Designed and tested to EN 1074.

• Flanges from DN 50 to DN 400 mm, larger sizes on request.

• Flanges to EN 1092/2, others on request.

Working conditions

• Pressures: 10-16-25 bar.

• Minimum pilot pressure: 1.5 bar.

• Clean water up to 70ºC, version for higher temperatures on request.