Potable hot water expansion tanks

TWB-20LH

The ThermoWave™ 20-liter / 5.28-gallon horizontal expansion tank is designed for reliable thermal expansion management in potable water systems. It features a high-grade butyl diaphragm, virgin polypropylene liner, and patented stainless-steel water connection for maintenance-free performance. The O-ring sealed air valve ensures leak-free operation.

Pre-charged to 1.9 bar / 28 psi and equipped with a 0.75" BSPT (c/w NPT) connection, this horizontal tank prevents system overpressure and conserves energy. Its robust carbon steel shell, finished with dual-layer polyurethane paint, provides long-lasting corrosion resistance and ensures dependable operation in a space-efficient design.

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

MODEL NUMBER: TWB-20LH

Temp Max: 90°C / 194°F

Pressure Pre-charge bar: 1.9 bar / 28 psi

Nominal Volume: 20 Liter / 5.28 Gallon

Connection: 0.75" BSPT (M)

Color: Almond

Pressure Max: 10 bar / 150 psi

Diameter: 26.4 cm / 10.4 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

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EAC

Russia

ACS

France

WQA

USA

WRAS

United Kingdom

Downloads

SELL SHEET THERMOWAVE EN

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