Non-potable hydronic heating expansion tanks

HWB-12LX

The HeatWave™ Tank 12 liter / 3.17 gallon inline model is designed specifically for closed-loop hydronic heating systems. Its high-grade butyl diaphragm and chromed steel water connection ensure long-term reliability and effective fluid expansion. The tank features a brass air valve with an O-ring sealed air valve cap, providing leak-free and maintenance-free operation over its lifespan.

Coated with a durable Gray dual-layer polyurethane paint, this tank withstands harsh indoor and outdoor environments. Its inline design, with a 0.75" BSPT (c/w NPT) connection, makes it ideal for installation in radiant heating circuits with glycol mixtures of up to 50%. This model supports pressures up to 0.7 bar / 10 psi and integrates seamlessly into compact system configurations.

  • Closed loop heating circuits
  • Hydronic heating circuits

MODEL NUMBER: HWB-12LX

Temp Max: 99°C / 210.2°F

Pressure Pre-charge bar: 0.7 bar / 10 psi

Nominal Volume: 12 Liter / 3.17 Gallon

Connection: 0.75" BSPT (M)

Color: Gray

Pressure Max: 6 bar / 87 psi

Diameter: 23 cm / 9.1 in

Features & Benefits

  • Leak-free O-ring sealed air valve
  • Dual layer polyurethane paint finish
  • High-grade butyl diaphragm design
  • Patented chromed steel water connection
  • Maintenance-free
  • Comprehensive testing

Product Certifications

CE

Europe

NEW_logo_iso

EAC

Russia

Downloads

SELL SHEET HEATWAVE EN

  • Download
  • Download
  • Download
  • Download
  • Download
  • Download
  • Download

Related Products

Navigating through the elements of the carousel is possible using the tab key. You can skip the carousel or go straight to carousel navigation using the skip links.
SWB-12LX

Water Movement: Non-Potable Hot Water Expansion Tanks

SWB-12LX

Model number: SWB-12LX
SolarWave™ 12-liter / 3.17-gallon inline expansion tank with a 0.75" BSPT (c/w NPT) connection, pre-charged to 1.9 bar / 28 psi. Compact and efficient for solar systems.

TEMP MAX: 130°C / 266°F

PRESSURE PRE-CHARGE BAR: 1.9 bar / 28 psi

NOMINAL VOLUME: 12 Liter / 3.17 Gallon

CONNECTION: 0.75" BSPT (M)

COLOR: White

PRESSURE MAX: 10 bar / 150 psi

DIAMETER: 23 cm / 9.1 in

View Product

We found other products you might like!

Navigating through the elements of the carousel is possible using the tab key. You can skip the carousel or go straight to carousel navigation using the skip links.
HWB-18LX

Water Movement: Non-Potable Hot Water Expansion Tanks

HWB-18LX

Model number: HWB-18LX
HeatWave Tank - 18 liter / 4.76 gallon inline, 0.7 bar / 10 psi, 0.75" BSPT (c/w NPT) connection, Gray finish. Durable solution for hydronic heating systems.

TEMP MAX: 99°C / 210.2°F

PRESSURE PRE-CHARGE BAR: 0.7 bar / 10 psi

NOMINAL VOLUME: 18 Liter / 4.76 Gallon

CONNECTION: 0.75" BSPT (M)

COLOR: Gray

PRESSURE MAX: 6 bar / 87 psi

DIAMETER: 27.9 cm / 11 in

View Product
HWB-24LX

Water Movement: Non-Potable Hot Water Expansion Tanks

HWB-24LX

Model number: HWB-24LX
HeatWave Tank - 24 liter / 6.34 gallon inline, 0.7 bar / 10 psi, 0.75" BSPT (c/w NPT) connection, Gray finish. Optimized for medium-capacity systems.

TEMP MAX: 99°C / 210.2°F

PRESSURE PRE-CHARGE BAR: 0.7 bar / 10 psi

NOMINAL VOLUME: 24 Liter / 6.34 Gallon

CONNECTION: 0.75" BSPT (M)

COLOR: Gray

PRESSURE MAX: 6 bar / 87 psi

DIAMETER: 29 cm / 11.4 in

View Product