Pump start-up and shut-down control valve fig. XLC 390/490 PN16

The CSA XLC 390/490 control valve acts as a non-return valve and controls the pump start and stop sequence, preventing water hammer.

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 needle valves and flow stabilisers.

• Stainless steel seat.

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

Applications

• In pumping stations, to control start and stop sequences and avoid water hammer.

• To prevent water hammer when switching pumps in parallel pump systems.

• To ensure smooth, shock-free operation as a non-return valve.

Reference standards and flanges

• Designed and tested to EN 1074.

• Flanges from DN 50 to DN 800 mm, larger sizes on request.

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

Working conditions

• Pressures: 10-16 bar.

• Minimum pilot pressure: 0.7 bar.

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