Plastec 50 Series Direct Drive Forward Curve Blower Corrosive Environment 5.5 HP 7000 CFM 3 Phase

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Plastec

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Model

P50ST6P550

ID

16653

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Product Features
  • Space-saving design allows for easy installation
  • Forward Curve Impeller design for high airflow and quiet operation
  • Built with all-polypropylene construction for superior resistance to acids and corrosion
  • Designed to vent fumes from highly corrosive environments like laboratories, chemical plants, hospitals, and universities.

OVERVIEW

Plastec centrifugal fans are available in 6 sizes from 5" up to 23.50" inlet. They are designed to exhaust fumes from highly corrosive environments such as laboratories, chemical plants, hospitals, universities, etc. The all-polypropylene construction and thick walls ensure maximum protection against acids and corrosion.

Key Features

  • All-Polypropylene Airflow Path: No metal parts in the airstream, providing complete corrosion resistance.
  • HALS-Stabilized Material: Built-in UV protection for outdoor and sun-exposed installations.
  • Forward-Curve Impeller: Designed to deliver high airflow with strong static pressure performance.
  • Direct-Drive Design: Eliminates belts or pulleys to reduce wear and minimize maintenance.
  • High Corrosion Resistance: Engineered for durability in chemical, acid, and corrosive environments.
  • Explosion and VFD Compatibility: Suitable for explosion-rated systems and variable speed applications.
  • Certified Performance: Tested and rated to AMCA standards for airflow and efficiency.
  • Flexible Mounting and Configuration Options: Supports multiple installation styles for industrial applications.

Blower Specifications

  • Direct Drive Forward Curve
  • Wheel Diameter: 30.50"
  • Maximum Airflow: 7000 CFM
  • Sound Level: 91 dBA @ 5 Feet
  • Inlet Diameter: 23.5"
  • Outlet Diameter: 20"
  • Voltage: 230/460 V, 3-Phase, 50/60 Hz
  • Motor Power: 5 HP
  • Motor Speed: 1350 RPM
  • Motor Type: Standard Duty, 3 Phase
  • Motor Enclosure: Totally Enclosed Fan Cooled

Alternate Model Number: PLA50ST6P

Warranty Information

Motor Warranty

All motors are covered by a one-year warranty from the date of shipment, provided by the motor manufacturer. If service is required during the warranty period, the motor must be taken to the nearest authorized motor service station. Failure to use an authorized service station may void the motor warranty. If you are unsure of an authorized service location, contact the factory for assistance. Installation, removal, re-installation costs, and any consequential damages are not covered.

Blower Housing Assembly Warranty

The blower housing assembly is warranted to be free from defects in materials and workmanship for two (2) years from the date of original shipment. Defective units or parts reported within this period may be replaced at the manufacturer’s option when returned to the factory with transportation prepaid by the sender.

Exclusions

The following items are not covered by this warranty:

  • Normal wear from heat, abrasion, or chemical exposure
  • Damage from improper installation, incorrect electrical connections, or unauthorized alterations
  • Damage resulting from misuse, abuse, or abnormal operating conditions
  • Lack of proper maintenance
  • Transportation costs to and from the factory for warranty repairs
Limitation of Warranty and Liability

This warranty is limited to repair or replacement of defective parts as described above. The manufacturer is not responsible for installation, removal, or re-installation costs, nor for any consequential damages resulting from product failure or improper operation.

See full warranty on Installation, Operation & Maintenance Manual

Durable Materials & Construction

The Plastec 50 blower is engineered for the most demanding corrosive and industrial environments. Its entire airflow path — from the housing and impeller to all internal surfaces exposed to the airstream — is made from thick-wall, injection-molded polypropylene, giving it superior resistance to acids, salts, solvents, and chemical vapors. To defend against UV damage when installed outdoors or in exposed conditions, the polypropylene includes HALS (Hindered-Amine Light Stabilizers), which slow down photodegradation and preserve material strength over time. Plastec also offers this model with options suitable for explosion-rated or variable-speed applications via VFDs (Variable Frequency Drives), making it a robust choice in specialized industrial systems.

The Plastec 50 is an excellent fit for chemical plants, laboratories, hospitals, universities, wastewater facilities, and other settings where aggressive exhaust gases must be handled safely and reliably.


Suitable Applications for Plastec 50 Forward Curve Blower

  • Laboratory hoods: Designed to exhaust corrosive fumes from chemistry, biology, and research laboratory environments.
  • Chemical facilities: Ideal for venting process areas or storage rooms in industrial plants and chemical manufacturing sites.
  • Educational and research institutions: Applied in universities, research institutes, and teaching labs where chemical resistance is critical.
  • Industrial and petroleum storage: Effective for removing corrosive gases and acid vapors in industrial, chemical, or petroleum storage applications.
  • Pharmaceutical and medical production: Used in facilities handling aggressive air contaminants during pharmaceutical or medical manufacturing.
  • Water and wastewater treatment: Deployed in sewage and water treatment plants to manage harsh gases and corrosive emissions.
  • Marine and coastal environments: Suited for installations in maritime or coastal areas exposed to saline air and corrosion stress.
More Information
Plastec 50 Series Direct Drive Forward Curve Blower Corrosive Environment 5.5 HP 7000 CFM 3 Phase
FeatureSpec
SKUP50ST6P550
Weight (in lbs)415
Brand/ManufacturerPlastec
Additional InformationUL Listed and CSA Certified
Additional InformationFor Corrosive Environment
Blower MotorStandard Duty 3 Phase
Drive TypeDirect
Static Pressure7 inWg
Maximum CFM7000
Decibel Level (dBA)91
Motor RPM1350
Horsepower5.5 HP
Electrical208-230 / 460 V, 3 Phase, 60 Hz
Amperage Requirement17.6
Outlet Diameter20"
Inlet Diameter23.5"
Height52.75
Width45.1
Depth50.4
Resources You will need Adobe® Acrobat® Reader to view PDF documents
Safety InformationPROPOSITION 65 WARNING
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Customer Questions
Does the blower need lubrication or belt adjustments?
No, the blower uses a direct-drive design, so there are no belts or pulleys to maintain. The motor is sealed and requires little to no maintenance.
Is the blower suitable for outdoor use?
Yes. You can use it outdoors if you add weather hoods or covers to keep water out. The polypropylene body is built to resist moisture, salt spray, and sun exposure better than many metal blowers.
Can I run the blower all the time without problems?
Yes. The blower is designed for continuous use as long as it’s installed correctly and the airflow isn’t blocked. If you have any further questions, please don't hesitate to contact us. Thanks.
Can one person move the Plastec 50?
Because of its size, the Plastec 50 is heavier and may need two people or lifting help to move. It is still lighter than most metal blowers of the same capacity.
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