Potable hot water expansion tanks

TWB-35LH

The ThermoWave™ 35-liter / 9.25-gallon horizontal expansion tank is designed for larger potable hot water systems requiring efficient and reliable thermal expansion management. Its high-grade butyl diaphragm and virgin polypropylene liner provide safe and durable operation. The patented stainless-steel water connection ensures a leak-free design, while the O-ring sealed air valve minimizes maintenance.

Pre-charged to 1.9 bar / 28 psi and fitted with a 0.75" BSPT (c/w NPT) connection, this tank prevents overpressure and conserves water and energy. Its carbon steel shell, finished with dual-layer polyurethane paint, offers superior resistance to corrosion and external damage, ensuring long-term performance in demanding applications.

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

MODEL NUMBER: TWB-35LH

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

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ThermoWave™ 35-liter / 9.25-gallon inline expansion tank with a 0.75" BSPT (c/w NPT) connection, pre-charged to 1.9 bar / 28 psi. Durable and maintenance-free.

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

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