Plastec Ventilation

P25SS4P075RU25 Plastec Ventilation Duct Fans Polypropylene Blowers, PLASTEC 25-4 3/4HP

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Plastec 25 Direct Drive Forward Curve Polypropylene Blower
Designed to exhaust fumes from highly corrosive environments such as laboratories, chemical plants, hospitals, universities, etc.

How to Choose a Fan Model-Pole

Steps and Basic Requirements:

  • Phase - single or three
  • Static Pressure in In WG (inches of water)
  • Flow in CFM (Cubic Feet Per Minute)

1. Static Pressure: Locate the required or estimated static pressure in InWG (Inches of Water) on the selected series performance chart. If none has been specified it is always a good rule to use a minimum of 0.25

2. Flow: Find the desired flow rate in CFM (Cubic Feet per Minute) on the selected series performance chart.  Note: For balancing, use a damper for single-phase, and a damper or VFD for three-phase

3. Locate the Fan Model: The model is listed in bold above the performance curve line where the static pressure and flow rate intersect.  

Example: A Static Pressure of 1.5 InWG and a Flow of 300 CFM is MODEL = P15-2

Note: This blower model is Plastec 25-4 3/4Hp with Roof Unit Kit but is also available in Plastec 25-4 1/2Hp with Weather Hood.


All-polypropylene construction and thick walls
Ensure maximum protection against acids and corrosion.
Hindered-Amine Light Stabilizers (HALS) for increase UV resistance.


Model-Pole: Plastec 25-4 3/4Hp
Static Pressure Range: 0.5 to 8 WG
Flow Range: 295 to 2060 CFM
VFD Motors Option: Yes
Mounting Kit: Root Unit Kit
Phase and Voltage: Single 115/230V
Inlet Diameter: 7.75"
Exhaust Diameter: 8.5”


Specs Sheet,