Potable hot water expansion tanks

TWB-4LX

The ThermoWave™ 4-liter / 1.06-gallon inline expansion tank is a compact solution for small potable hot water systems requiring reliable pressure management. Its high-grade butyl diaphragm and virgin polypropylene liner ensure safe operation, while the patented stainless-steel water connection and O-ring sealed air valve guarantee leak-free performance.

Pre-charged to 1.9 bar / 28 psi and equipped with a 0.75" BSPT (c/w NPT) connection, this inline tank conserves water and energy by temporarily absorbing expanded water. The carbon steel shell, protected by a dual-layer polyurethane finish, offers excellent resistance to corrosion and long-term durability.

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

MODEL NUMBER: TWB-4LX

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

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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