L'acqua sotto controllo
Automatic control valves

XLC 520/620-S PN40

Upstream pressure sustaining valve

The CSA model XLC 520-S and 620-S are globe pattern piston operated automatic control valves, PN 40 bar rated, that, installed in-line, will sustain the upstream pressure to a pre-set and adjustable value regardless of variations in demand.
 
photo of the pressure sustaining valve XLC 520-S
Product features
• Body and cover in ductile cast iron GJS 450-10.
• Internals in stainless steel.
• Position indicator in stainless steel.
• Circuitry in stainless steel.
• Needle valves and flow stabilizers in stainless steel.
• Seat in stainless steel.
• Painting with fluidized bed technology RAL 5005.
 
Applications
• Downstream of pumps to prevent overload and for cavitation protection.
• On the inlet supply line of storage tanks to stabilize pressure and flow required for the level control.
• On gravity fed supply lines to ensure the minimum pressure to consumers located at higher elevation zones, in case of high consumption of the lower zones.
Standard and connections
• Design and testing according to EN 1074.
• Flanges size from DN 50 to DN 150 mm, higher on request.
• Flanges standard EN 1092/2, different on request.
 
Working conditions
• Pressure range: 40 bar.
• Minimum working pressure: 0.7 bar acting on the pilot.
• Treated water maximum 70°C, higher temperature on request.