PT-12, 4.4 Gallon Non-ASME Expansion Tank Zoom

PT-12, 4.4 Gallon Non-ASME Expansion Tank


Brand: Bell & Gossett

Bell & Gossett
Qty Price
/ each
$234.20 / box (4 units x $58.55)
In Stock! Ships in 24-48 Hours
(26 Available)



Tank Volume: 4.4 Gallons
Max Accepted Volume: 3.2 Gallons
Max. Working Pressure: 150 psi
Weight (lbs): 9 lbs
Diameter (Inches): 11"
Height (Inches): 15"
Connection Size: 3/4"
Thread Type: Male
Connection Type: Threaded
Application: Heating
Max Operating Temp: 200°F
Shell Material: Carbon Steel
Diaphragm Material: Butyl
Precharged PSI: 38 psi
Series: PT

Description for Bell & Gossett 1BN318

The Series PT expansion tank is designed to absorb the forces of expanding water and protect a potable water system from pressure build up. The FDA approved heavy duty butyl diaphragm with polypropylene liner (sizes PT-5 through PT-210V) and FDA approved heavy duty butyl bladder (sizes PT-451 through PT-457) completely isolate the water from the steel shell


  • Residential and light commercial applications
  • Controls system pressure
  • Protects plumbing fixtures
  • Eliminates relief valve blow-off
  • FDA approved materials
  • High maximum operating temperatures
  • Max. working pressure of 150 psi (PT-5 & PT-12) or 100 psi (PT-25V thru PT-210V)
Please Note: Image depicts tank models HFT-15 through HFT-90

The HydroClaw Expansion Tank Support Bracket provides a safe and reliable option if you prefer to mount your expansion tank. This expansion tank bracket is easy to install and will hold any tank with a diameter of 11" nominal.

PT-12, 4.4 Gallon Non-ASME Expansion Tank

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