XLC 390/490 PN16

The XLC 390/490 is an active check valve, that isolates the pump from the system during pump starting and stopping to prevent and avoid surges and water hammer events.

Product features
• Body and cover in ductile cast iron GJS 450-10.
• Internals in ductile cast iron GJS 450-10 and 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
• At the pumps to enable start and stop cycles avoiding surges and water hammer.
• To prevent water hammer during pump switching in batteries and parallel operation.
• To ensure an accurate and surge free check prevention system.

Standard and connections
• Design and testing according to EN 1074.
• Flanges size from DN 50 to DN 400 mm, higher on request.
• Flanges standard EN 1092/2, different on request.

Working conditions
• Pressure range: 10-16 bar.
• Minimum working pressure: 0.7 bar acting on the pilot.
• Treated water maximum 70°C, higher temperature on request.