1-1/4" Threaded Vortech Air Separator


Brand: Taco

Mfr Part#: VRTX125-3

UPC#: 687752202199

Availability: In Stock
Usually ships: Today, if ordered by 3pm
Qty Price
$107.95 / each & Free Shipping
  • Description
  • Literature
  • Reviews
  • FAQs (2)

Taco VRTX125 VorTech Air Separator features 1-1/4" threaded inlets, cast iron body and is designed to provide an enhanced level of air removal in a large variety of hydronic, radiant heating, cooling or combination systems. Air is quickly and effectively separated and eliminated through a factory installed Taco Hy-Vent.

Taco VorTech air separator is also designed with a 1/2" tapping at the bottom for easy installation of an expansion tank.


  • Works Efficiently with both Low Velocity Water and High Velocity Water;
  • Unique Bubble Breaker Cartridge;
  • Replaceable High Capacity Hy-Vent;
  • No Minimum Run of Pipe Required;
  • Vent can be Closed;
  • Eliminates Air Induced System Noise;

Technical Specifications:

  • Inlet/Outlet Connections: 1-1/4" Female Threaded;
  • Expansion Tank Outlet (bottom tapping): 1/2" Female Threaded;
  • Maximum Operating Pressure: 150 psi;
  • Maximum Operating Temperature: 240°F;
  • Media: Water or Water/Glycol;
  • Recommended Velocity: 4 feet/sec;
  • Maximum Velocity: 8 feet/sec;
  • Cv: 21.4;
  • Kv: 17.0;
  • Dimensions: 5-3/4" wide x 7-5/8" high x 3" deep;
  • Weight: 7.0 lbs;
  • Materials of Construction: Cast Iron Body and Cap; Stainless Steel Cartridge and Plate; Viton O-Ring; Taco 419 Hy-Vent Air Vent;


1 year manufacturer's warranty.
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The Hy-Vent on my 125-3 Vortech Air separator is leaking fluid. Should the screw cap be left tightened or loose to prevent this from happening?
Read 1 answer
The screw cap should always be loose to allow the air to escape. If the Hy-Vent is leaking it may need to be replaced.
Answered on 5/20/2013 by PexUniverse Customer Service
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Does the Vortech Air Separator need to be installed on the return or supply line?
Read 1 answer
Typical installation is on the supply line in conjunction with an expansion tank as shown in the manual.
Answered on 2/19/2013 by PexUniverse Customer Service
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