Liquid Ring Vacuum Pump

Product overview

SIHI liquid ring vacuum pumps are displacement pumps of uncomplicated and robust construction with the following particular features:

• Non-polluting due to nearly isothermal compression.
• Oil-free, as no lubrication in the working chamber.
• Handling of nearly all gases and vapours.
• Small quantities of entrained liquid can be handled.
• Easy maintenance and reliable operation.
• Low noise and nearly free from vibration.
• Wide choice of material, therefore applicable nearly everywhere.
• Shaft not contact with the medium.
• Protection against cavitation as standard.
• Incorporated dirt drain.
• Incorporated central drain.
• No metallic contact of the rotating parts.

The SIHI liquid ring vacuum pumps LEL are single-stage ones.

APPLICATION
Handling and exhausting of dry and humid gases; entrained liquid can be handled during normal duty.
The pumps are applied in all fields where a pressure of 33 to 900 mbar must be created by robust vacuum pumps.

Pump Specifications:

• 3 Phase, 415V, 5.5kW, 10.9A, 1455 RPM.
• Volume: 200m3/hr @ 900mbar
• Maximum overpressure on compression: 0.5 BAR
• Permissible pressure difference between suction and discharge side: Max- 1.3 BAR, Min- 0.2 BAR
• Hydraulic test pressure (overpressure): 3 BAR.
• Moment of inertia of rotating parts of pump and water content: 0.097 kg/m2
• Noise level at 80 mbar suction pressure:L 65 dB (A)
• Maximum gas temperature: Dry 200C, Saturated 100C
• Service liquid: Maximum permissible temperature 80C, Minimum permissible temperature 10C
• Maximum viscosity: 4 mm2/s
• Maximum density: 1200 kg/m3
• Liquid capacity up to middle of shaft: 4 litre

Pump is mounted to a heavy duty frame.

Pumps comes with a liquid separator and also a 68 litre balance tank for continuos supply of service liquid to the pump.

Please see attached leaflet for more information and performance curves.