Upstream pressure relief valve figure XLC 320/420-R PN 25

The CSA Model XLC 320/420-R is a globe pattern hydraulically operated automatic control valve that, installed in derivation from the main line, will relief the excessive upstream pressure when it rises above the pre-set and adjustable 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

• Downstream of pumps to protect the pipeline against rise in pressure during pump start up and pump failure.

• In derivation from the main line to stabilize the pressure of secondary line and water users.

• As a protection against rise in pressure in industrial equipment and civil installations.

• Downstream of pressure reducing station and modulating devices to protect the system against unwanted pressure fluctuations.

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.