If the temperature of the air bled to atmosphere (bleed temperature) is measured, a rise can be observed after a period of time. This condition, called "bed breakthrough" indicates that the bed is dry. At bed breakthrough, the bleed air temperature peaks between 350°F and 400°F.
Dryer models 350 through 2100 dryers are equipped with the Dewpoint Extend feature. The regeneration heaters turn off automatically on bed breakthrough for additional energy savings. A 550°F regeneration temperature will dry the desiccant beds sufficiently to produce process air dewpoint of -40°F. In a properly sized system, this ultra-low humidity level will be more than adequate to dry plastics to as little as .003% moisture.
Specifying a Drying System
There were many variables considered in the selection of your drying system, including: type of materials, residence time, throughput of the extruder or injection molding machine, ambient air moisture and temperature, and the altitude at the processing site. Should your operating environment change, the manufacturer can advise you on necessary equipment and process time and temperature modifications.
During regeneration, air is heated to approximately 550°F and forced through
the desiccant bed. The moisture driven off the bed is bled to the atmosphere.
Control Valve
Lower
Figure Two:
Airflow Diagram
Regeneration
Blower

When a desiccant bed is on- line, it absorbs moisture from the process air. In time, the bed becomes saturated with moisture and needs to be regenerated. The dryer automatically redirects the process airflow to the second bed, and starts the regeneration cycle on the first bed.

Process Return Air

 

From Drying Hopper

Bleed

 

Upper

Control

Valve

 

 

Process

 

Process

Delivery

 

Filter

Air

Desiccant

Assembly

Desiccant

Bed

 

Bed

 

Process

Regeneration

 

Heater

 

Blower

Process

 

 

Heaters

2-8

350-2100 cfm Dryers

Chapter 2: Functional Description

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Sterling 350-2100 CFM installation manual Cfm Dryers Functional Description
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350-2100 CFM specifications

The Sterling 350-2100 CFM is a high-performance ventilation system that effectively addresses the needs of various industrial and commercial applications. This versatile unit is designed to provide optimal air movement, offering flow rates spanning from 350 to 2100 cubic feet per minute (CFM). Its capabilities make it ideal for environments that require robust air circulation, such as warehouses, factories, and workshops.

One of the standout features of the Sterling 350-2100 CFM is its energy-efficient motor. The unit is equipped with a reliable and durable drive system, allowing for lower energy consumption while maintaining high performance. This not only reduces operational costs but also contributes to a greener footprint, making it an attractive option for businesses looking to enhance sustainability.

The ventilation system is designed with an advanced aerodynamic blade technology that maximizes airflow and minimizes noise levels. This allows for a more comfortable working environment by reducing the disruption typically associated with high-velocity air movement. Additionally, the integrated sound-dampening features ensure that it operates quietly, making it suitable for noise-sensitive areas.

The Sterling 350-2100 CFM also incorporates a user-friendly control panel, which allows for easy adjustments and monitoring of airflow levels. This system can be tailored to specific ventilation requirements, ensuring optimal performance in diverse settings. For added convenience, some models come with remote control capabilities, allowing operators to manage airflow from a distance.

Durability is a key characteristic of the Sterling 350-2100 CFM. The unit is constructed with high-grade materials that resist wear and tear, providing long-lasting service even in challenging environments. The weather-resistant design further enhances its suitability for outdoor applications.

Moreover, the system can be easily integrated with existing HVAC setups, providing flexibility and compatibility without extensive modifications. Maintenance is also simplified, with easily accessible components for routine checks and servicing.

In summary, the Sterling 350-2100 CFM ventilation system stands out for its combination of energy efficiency, quiet operation, and robust design. With its innovative technologies and user-friendly features, it meets the demands of modern industrial and commercial spaces while ensuring optimal air quality and comfort for occupants.
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