Introduction
The document introduces the DUO series pumps, specifically the DUO-60 and DUO-80 models, designed for wastewater treatment systems. These pumps are part of the ultimate pneumatic solution for aeration processes.

Specifications
The DUO series pumps operate at a rated voltage of AC100/120/230V and a frequency of 14.7 kPa. The airflow volume for the DUO-60 is 60 L/min (ANR) and for the DUO-80 is 80 L/min (ANR). Power consumption is 39W for the DUO-60 and 58W for the DUO-80. Noise levels are maintained at 50-60 dBA, and the weight of the units is not specified.

Performance Curve
The performance curve illustrates the relationship between airflow volume and loading pressure at different frequencies (50Hz and 60Hz). The curves indicate that as the loading pressure increases, the airflow volume decreases.

Design and Features
The pumps feature quiet valve operation, a programmable timer, and an alarm system, enhancing their functionality and user convenience.

Dimensions
The dimensions of the pump are provided in millimeters, with key measurements including a diameter of 18mm and various lengths and widths.

Distribution and Manufacturing
The pumps are manufactured by TECHNO TAKATSUKI CO., LTD., with distribution managed by several international branches including HIBLOW USA INC., HIBLOW FRANCE S.A.S, and others.

Contact Information
Contact details for the head office in Osaka and the Tokyo sales office are provided for further inquiries.