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

The CSA XLC 320/420-R control valve is an automatic hydraulic globe type valve which, installed as a branch off the main line, relieves excess upstream pressure when it exceeds an adjustable set value.

Features

• GJS 450-10 ductile iron body and cover.

• GJS 450-10 ductile iron and stainless steel internal components.

• Stainless steel position indicator.

• Stainless steel pilot circuit.

• Stainless steel adjusting device, needle valves and flow stabilisers.

• Stainless steel seat.

• RAL 5005 blue epoxy coating applied by fluidised bed technology.

Applications

•Downstream of pumps, to protect against overpressure at start-up and during pump stops or power failures.

• Mounted as a branch off the discharge line or in pressure reducing stations, to relieve excess pressure.

• As a relief valve to protect installations, plants or equipment against sudden pressure rises.

Reference standards and flanges

• Designed and tested to EN 1074.

• Flanges from DN 50 to DN 400 mm, larger sizes on request.

• Flanges to EN 1092/2, others on request.

Working conditions

• Pressures: 10-16-25 bar.

• Minimum pilot pressure: 0.7 bar.

• Clean water up to 70ºC, version for higher temperatures on request.