The Delta Hybrid series of direct-drive screw blowers is being further expanded with the new D100S and D120S models. This provides additional flexibility for cost-effective and energy-efficient process air generation in higher performance ranges. Delta Hybrid series screw blowers are characterized by high energy efficiency, minimized lifecycle costs, 100% pure process air, high operational reliability and a long service life. The D100S package is designed for a volume flow of up to 6,060 m³/h, the D120S covers volume flows of up to 7,320 m³/h and adds a further, precisely graded performance stage to the portfolio. This gives plant operators and manufacturers significantly increased flexibility in design, as well as the opportunity to customise systems accurately to specific process requirements. The two new sizes provide a reliable supply of process air that is 100% oil- and PFAS-free. The packages operate consistently with high efficiency and cost-effectiveness across an extended turndown of up to 1:5. Compared with conventional blowers, the direct-drive Delta Hybrid series enables energy savings of up to 37%, says the manufacturer. The screw blowers are rated to withstand maximal loads, enabling a high level of process reliability and a long service life. Key factors include, amongst others, bearings with a theoretical service life of more than 60,000 operating hours, pressure lubrication of the anti-friction bearings, extended oil change intervals of up to 16,000 operating hours and an oil cooler. These modifications enable long-term operation with minimal maintenance requirements and result in a significant reduction in the total cost of ownership for the operator.
Source: Aerzen
The basis of the thermodynamic efficiency is the innovative compressor stage, which combines newly designed, highly efficient screw rotor profiles with optimised internal flow guidance. The drive package consists of a direct drive connected with motors in efficiency class IE5 (Ultra Premium). Thanks to the VFD, which is integrated as standard, the delivered volume flow can be adjusted continuously and precisely to the specific process requirements. Furthermore, these packages set the standard for noise reduction and are among the quietest systems on the market in their performance segment. — Aerzen Maschinenfabrik GmbH, Aerzen, Germany