Plastec Ventilation

S12SS4P033-WH3 Storm 12 High Static Pressure Direct Drive Forward Curve Polypropylene Blower with Weather Hood/Stand

Regular price $1,873.26 USD
Regular price Sale price $1,873.26 USD
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Expertly crafted, the S12SS4P033-WH3 Plastec Ventilation Duct Fan is meticulously designed for corrosive environments. Crafted with all-polypropylene construction for maximum protection against acids and corrosion, this fan excels in chemical cabinets, water treatment, scrubbers, chemical plants, and industrial exhaust systems. Equipped with Hindered-Amine Light Stabilizers (HALS), it offers increased UV resistance.


  • Drive Type — Direct Drive
  • Wheel Type — Forward-Curved
  • Phase — Single
  • Model-Pole — Storm 12-4
  • Mounting Kit — WH3 (Weather Hood with Stand)
  • Mounting Orientation — Multi-position

How to Choose Fan Model-Pole


✅ Efficient Ventilation: Equipped with a variable frequency drive (VFD) motor for optimal airflow control.
✅ Corrosion Resistance: Constructed with all-polypropylene materials, ensuring maximum protection against acids and corrosion.
✅ Enhanced UV Resistance: Hindered-Amine Light Stabilizers (HALS) provide increased UV resistance for prolonged durability.
✅ Easy Installation: Comes with a mounting kit (WH3) for versatile and hassle-free installation.
✅ Quiet Operation: Operates at a low noise level of 61.5 dBA @ 5 Feet, ensuring minimal disturbance.


Item Dimensions: Inlet Diameter - 3.5", Exhaust Diameter - 3.5"
Item Weight: 14.5 lbs
Motor RPMs: 1725
Motor Horse Power (HP): 0.33
Voltage (V): 115/230
Phase: Single
Flow Range: 30 to 350 CFM
Static Pressure Range: 0.75 to 4.5 WG
Noise Level A: RPM 1435=72dB, RPM 1720=75db, RPM 2870=85, RPM 3440=88


Specification Sheet,
Discharge Positions,
Installation, Operation & Maintenance Manual,
AMCA Certification,

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Frequently Asked Questions about the S12SS4P033-WH3 Storm 12 High Static Pressure Direct Drive Forward Curve Polypropylene Blower with Weather Hood/Stand

What is a centrifugal fan, and how does it differ from other types of fans?

A centrifugal fan is a mechanical device used to move air or gas radially outward. Unlike axial fans, it creates airflow by directing air through a series of blades and then discharging it at a right angle to the intake.

Where are centrifugal fans commonly used in HVAC systems?

Centrifugal fans are often used in HVAC systems for applications such as ventilation, air conditioning, and heating. They excel in environments where higher pressure and airflow are required.

What are the benefits of using centrifugal fans in industrial settings?

Centrifugal fans are preferred in industrial settings due to their ability to handle higher pressure and provide efficient airflow. They are suitable for applications like chemical plants, manufacturing, and industrial exhaust systems.

What materials are commonly used in constructing centrifugal fans to resist corrosion?

Centrifugal fans designed for corrosive environments often use materials like polypropylene, which provides excellent resistance against acids and corrosion.

Can centrifugal fans be used for both exhaust and supply air applications?

Yes, centrifugal fans are versatile and can be used for both exhaust and supply air applications, making them suitable for various HVAC and industrial setups.