Potable hot water expansion tanks

TWB-35LX

The ThermoWave™ 35-liter / 9.25-gallon inline expansion tank is designed for medium to large potable hot water systems requiring efficient thermal expansion management. Its high-grade butyl diaphragm and virgin polypropylene liner ensure long-lasting durability and safety. The patented stainless-steel water connection guarantees leak-free performance, and the O-ring sealed air valve minimizes maintenance.

Pre-charged to 1.9 bar / 28 psi and equipped with a 0.75" BSPT (c/w NPT) connection, this inline tank prevents overpressure while conserving energy and water. Its carbon steel shell, finished with dual-layer polyurethane paint, provides exceptional resistance to corrosion and wear, making it a dependable choice for demanding applications.

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

MODEL NUMBER: TWB-35LX

Temp Max: 90°C / 194°F

Pressure Pre-charge bar: 1.9 bar / 28 psi

Nominal Volume: 35 Liter / 9.25 Gallon

Connection: 0.75" BSPT (M)

Color: Almond

Pressure Max: 10 bar / 150 psi

Diameter: 31.8 cm / 12.5 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

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EAC

Russia

ACS

France

WQA

USA

WRAS

United Kingdom

Downloads

SELL SHEET THERMOWAVE EN

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ThermoWave™ 35-liter / 9.25-gallon horizontal expansion tank with a 0.75" BSPT (c/w NPT) connection, pre-charged to 1.9 bar / 28 psi. Reliable and robust for large systems.

TEMP MAX: 90°C / 194°F

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NOMINAL VOLUME: 35 Liter / 9.25 Gallon

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PRESSURE MAX: 10 bar / 150 psi

DIAMETER: 31.8 cm / 12.5 in

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