Potable hot water expansion tanks

TWB-2LX

The ThermoWave™ 2-liter / 0.53-gallon inline expansion tank is a compact solution for managing thermal expansion in potable hot water systems. Featuring a high-grade butyl diaphragm and virgin polypropylene liner, it provides safe and reliable operation. The patented stainless-steel water connection and O-ring sealed air valve ensure leak-free, maintenance-free performance.

With a 0.75" BSPT (c/w NPT) connection and pre-charged to 1.9 bar / 28 psi, this tank integrates seamlessly into small potable hot water systems, conserving water and energy while maintaining system pressure. The carbon steel shell, coated with dual-layer polyurethane paint, offers excellent corrosion resistance, ensuring long-term durability.

  • Stored hot water
  • Open loop potable hot water circuits
  • Potable hot water systems

MODEL NUMBER: TWB-2LX

Temp Max: 90°C / 194°F

Pressure Pre-charge bar: 1.9 bar / 28 psi

Nominal Volume: 2 Liter / 0.53 Gallon

Connection: 0.75" BSPT (M)

Color: Almond

Pressure Max: 10 bar / 150 psi

Diameter: 12.6 cm / 5 in

Features & Benefits

  • Leak-free O-ring sealed air valve
  • Dual layer polyurethane paint finish
  • High-grade butyl diaphragm design
  • Virgin polypropylene liner
  • Patented stainless steel water connection
  • Maintenance-free

Product Certifications

CE

Europe

NEW_logo_iso

EAC

Russia

ACS

France

WQA

USA

WRAS

United Kingdom

Downloads

SELL SHEET THERMOWAVE EN

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

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.
TWB-4LX

Water Movement: Potable Hot Water Expansion Tanks

TWB-4LX

Model number: TWB-4LX
ThermoWave™ 4-liter / 1.06-gallon inline expansion tank with a 0.75" BSPT (c/w NPT) connection, pre-charged to 1.9 bar / 28 psi. Lightweight and efficient.

TEMP MAX: 90°C / 194°F

PRESSURE PRE-CHARGE BAR: 1.9 bar / 28 psi

NOMINAL VOLUME: 4 Liter / 1.06 Gallon

CONNECTION: 0.75" BSPT (M)

COLOR: Almond

PRESSURE MAX: 10 bar / 150 psi

DIAMETER: 16.2 cm / 6.4 in

View Product
TWB-8LX

Water Movement: Potable Hot Water Expansion Tanks

TWB-8LX

Model number: TWB-8LX
ThermoWave™ 8-liter / 2.11-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 small systems.

TEMP MAX: 90°C / 194°F

PRESSURE PRE-CHARGE BAR: 1.9 bar / 28 psi

NOMINAL VOLUME: 8 Liter / 2.11 Gallon

CONNECTION: 0.75" BSPT (M)

COLOR: Almond

PRESSURE MAX: 10 bar / 150 psi

DIAMETER: 20.2 cm / 7.9 in

View Product