;Audible/visual critical alarm.

;Fusing for blowers and heaters.

;Dirty Filter indicator for each individual blower.

2-6 The Closed Loop Drying System

Dehumidifying dryers force hot, dry air through the resin in the drying hopper where the air picks up moisture from the material and is drawn back to the dryer.

In the dryer, a desiccant bed strips moisture from the air. The dryer then re-heats dried process air, and sends it back into the drying hopper to dry material again.

This system is a closed loop, because ambient (outside) air is never introduced into the process air. See Figure 2. Our dehumidifying dryers use the closed loop system, because the process air is typically much drier than ambient air, even after carrying moisture out of the plastic resin.

Recycling process air maintains drying efficiency at a consistently high level.

Figure 1-Dryer Air Flow Diagram

Ambient

 

 

From

 

 

drying hopper

Regen

 

 

Process

filter

Regen

Process air

filter

 

bleed

heater

To drying

 

 

 

 

 

hopper

 

Upper valve

 

 

Desiccant

Desiccant

beds

beds

Regen heater

Regen heater

Lower valve

Regen blower

Process blower

Cabinet Series Dehumidifying Dryer

11

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Sterling 90-225 CFM, SDA 150-380 installation manual Closed Loop Drying System, Dryer Air Flow Diagram

SDA 150-380, 90-225 CFM specifications

The Sterling 90-225 CFM and SDA 150-380 series represent cutting-edge advancements in air compressor technology, designed for a wide range of industrial applications. Known for their reliability, efficiency, and superior performance, these units are essential tools for professionals seeking high-quality compressed air solutions.

One of the standout features of the Sterling 90-225 CFM series is its impressive flow rate. With a capacity range of 90 to 225 cubic feet per minute, these compressors offer ample airflow to power pneumatic tools and equipment while maintaining optimal pressure levels. The durability of the components used in the construction of this series ensures that it can withstand the rigors of heavy-duty operations while minimizing downtime.

The SDA 150-380 series further enhances this approach with its higher capacity range, accommodating between 150 to 380 CFM. This variant is particularly suitable for larger facilities and demanding applications where sustained airflow is essential. Both series are designed to adapt to various pressure requirements, making them versatile solutions for different industries, including manufacturing, construction, and automotive sectors.

A key technology featured in both series is the use of energy-efficient motors, which significantly reduce operational costs. These motors are designed to deliver high torque at low speeds, ensuring smooth operation and less wear on the compressor. Furthermore, the incorporation of advanced control systems allows for real-time monitoring and adjustments to optimize performance, ensuring that the compressors operate within desired parameters continuously.

Noise reduction is another critical aspect of both the Sterling and SDA series. Innovatively engineered with sound-attenuating materials, these compressors operate at lower decibel levels, providing a more pleasant working environment. This focus on user comfort doesn’t sacrifice performance, as the units are built to achieve maximum efficiency even at reduced noise levels.

The ease of maintenance is another important characteristic. Both models are equipped with user-friendly access points for essential components, simplifying routine checks and servicing procedures. This results in less downtime and improved reliability across the operational lifespan of the compressors.

In conclusion, the Sterling 90-225 CFM and SDA 150-380 series compressors set a benchmark in the industry, offering a blend of performance, efficiency, and user-friendly features that cater to various industrial needs. Their robust construction, advanced technology, and focus on user comfort make them ideal choices for businesses seeking to enhance productivity and reduce operational costs.