Flow rate and pressure reducing control valve figure XLC 331/431 PN 25

The CSA model XLC 331/431 is a globe pattern hydraulically operated automatic control valve that reduces and stabilizes the downstream pressure to a constant value, regardless of variation in demands, limiting at the same time the flow rate to a maximum value.

Product features

• Body and cover in ductile cast iron GJS 450-10.

• Internals in ductile cast iron GJS 450-10 and stainless steel.

• Position indicator in stainless steel.

• Circuitry in stainless steel.

• Unit flow regulator device, needle valves and flow stabilizers in stainless steel.

• Seat in stainless steel.

• Painting with fluidized bed technology RAL 5005.

Applications

• On the main pumping line for protection against excessive flow conditions and possible increase in pressure.

• When stabilizing and reducing pressure to plants and civil installations as a protection against excessive flow during peak hours and possible pipe breaks.

• Stabilizing the water consumption and pressure fluctuations of secondary lines and water distribution systems during changes of fluid parameters needed for the daily regulation and control maneuvers.

Standard and connections

• Design and testing according to EN 1074.

• Flanges size from DN 50 to DN 800 mm (XLC 400 series) and up to DN 1000 mm (XLC 300 series), higher on request.

• Flanges standard EN 1092/2, different on request.

Working conditions

• Pressure range: 10-16-25 bar.

• Minimum working pressure: 1.5 bar acting on the pilot.

• Treated water maximum 70°C, higher temperature on request.