1/2" Threaded x Union Pressure Reducing/Boiler Fill Valve & Pressure Relief Valve


Brand: Taco

Mfr Part#: 334-T3

UPC#: 687752022308

Availability: In Stock
Usually ships: within 1 business day
Qty Price
$89.95 / each
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Taco 334-T3 is a combination Boiler Feed Valve and Pressure Relief Valve. Features cast iron body and 1/2" threaded inlets.
This boiler feed valve combination is used to automatically feed water to a system whenever the pressure in the system drops below the pressure setting of the valve. The pressure relief valve is factory set to 30 psi.


  • Fast Fill Rate;
  • Exclusive Fast Fill Lever Lock;
  • Built-In Check to Prevent Emptying the System if Incoming Pressure Fails;
  • Adjustable Set Pressure of 10 to 25 psi;
  • Pressure Setting Adjustment Separated from Fast Fill Lever for Easy, Fast Adjustment.

Technical Specifications:

  • Inlet: 1/2" Threaded (Union);
  • Outlet: 1/2" Threaded;
  • Maximum Fluid Temperature: 212 F;
  • Maximum Supply Side Pressure: 100 psi;
  • Operating Pressure Range: 10 - 25 psi;
  • Pressure Relief Valve is Set To: 30 psi;
  • Factory Setting (System Side): 12 psi;
  • Materials of Construction: Cast Iron;
  • Weight: 3.9 lbs;
  • Dimensions: 7-3/8" wide x 5-1/8" high;
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