Airtech®/Speck Liquid Ring Vacuum Pumps are ideal for various applications that require continuous and quiet operation, compact design, and reduced power consumption. The two stage, variable discharge port design provides efficient operation from 10 through 1000 cfm for vacuum levels up to 29" Hg. The impeller's unique design of slower spinning curved blades reduces tip speed enhancing the life expectancy of the pump.
Unit of Measure



N/A Two

Pump Type

N/A Liquid Ring

Power Supply Frequency

N/A 50 Hz60 Hz

Inlet Size

N/A 4 in

Outlet Size

N/A 4 in

Seal Water

N/A 2 in

Flow Rate

N/A 10 to 1000 ft³/min

Vacuum Rating

N/A 29 inHg

Ring Liquid

N/A Water

Ring Liquid Temperature

N/A 15 ºC59 ºF

Tolerance - Suction Capacity

N/A -10 %

Tolerance - Power Consumption

N/A +10 %

General Description

N/A The characteristics are applicable for compression of 20 ºC (68 ºF) dry air from inlet pressure to atmospheric pressure (1013 mbar / 30 inch Hg a) for nominal speed and drive with three phase motors. Ring liquid is water at 15 ºC (59 ºF). The tolerance of the suction capacity is -10% and of the power consumption is +10%.

With different operating conditions characteristic curves change (e.g. differing gas operating liquid conditions, conveying of additional liquids and/or pumping of gas-steam mixtures).