Pressure relief/sustaining valve with minimum-maximum level control figure XLC 324/424 PN 16

The CSA Model XLC 324/424 is a globe pattern hydraulically operated automatic control valve that sustains the upstream pressure to a pre-set value regardless of variations in demand and, at the same time, it controls and regulates the minimum and maximum level inside a tank. In case of decrease of the upstream pressure below the set point, during opening, the valve will throttle ensuring the water supply to higher zone consumers. The CSA XLC 324/424 is extremely important to stabilize HGL, contain unwanted surges and to limit the excessive flow to the tank.

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

• To prioritize elevated pressure zones creating back pressure during level control.

• Avoiding excessive flow of a tank supply during the valve’s opening phase.

• Ensure the storage tank filling through exceeding upstream pressure values.

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: 0.7 bar acting on the pilot.

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