1” Cast Iron Air Scoop

1” Cast Iron Air Scoop
1” Cast Iron Air Scoop QR Code
Views: 5573 Model: 431-6
UPC: 687752023220

MPN: 431-6


Weight:5.00 lb

Dimensions (L x W x H ): 7.00 x 5.00 x 3.00

Usually ships: 1 business days
Qty: Add to Cart


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The 431-6 from Taco is a Cast Iron Air Scoop for 1” NPT. The Air Scoop is designed to slow the water velocity in order to separate air from solution. The unit is manufactured from cast iron and features equal threaded inlets on both sides. Top of the air scoop features a 1/8" NPT outlet and allows for connection of a regular air vent (such as Taco Hy-Vent part# 400-4). Bottom of the air scoop has a 1/2" NPT threaded outlet, which allows for connecting a plain steel diaphragm expansion tank.


  • One Piece Cast Iron Construction;
  • Engineered Baffle to Separate Air from Water;
  • Never Requires any Servicing.

Technical Specifications:

  • System Connections: 1" Female Threaded;
  • Bottom Tapping (for expansion tank): 1/2" Female Threaded;
  • Top Tapping (for air vent): 1/8" Female Threaded;
  • Maximum Operating Pressure: 125 psi;
  • Maximum Operating Temperature: 300°F;
  • Media: Water or Water/Glycol Mix;
  • Recommended Flow Rate: 4 ft/sec;
  • Maximum Flow Rate: 8 ft/sec;
  • Dimensions (W x H): 6" x 4";
  • Cv: 31.4;
  • Weight: 4.0 lbs.


  • 1 year manufacturers warranty.
Product Specs
Application: Heating
Connection Type: NPT
Size: 1"
Type: Air Scoop
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