Indirect solar heating expansion tanks

SWB-100LV

The SolarWave™ 100-liter / 26.42-gallon vertical expansion tank is engineered for large-scale solar heating systems. Its high-temperature butyl diaphragm and patented stainless-steel water connection ensure consistent and reliable performance under extreme conditions. The tank’s replaceable base and O-ring sealed air valve enhance maintenance-free operation.

With a 1" BSPP connection and pre-charged to 1.9 bar / 28 psi, this vertical tank offers optimal thermal expansion control for solar closed-loop circuits and hydronic heating systems. The robust carbon steel shell, coated with a dual-layer polyurethane finish, provides long-term corrosion resistance and durability in demanding environments.

  • Solar closed loop circuits
  • Hydronic heating circuits

MODEL NUMBER: SWB-100LV

Temp Max: 130°C / 266°F

Pressure Pre-charge bar: 1.9 bar / 28 psi

Nominal Volume: 100 Liter / 26.42 Gallon

Connection: 1" BSPP (F)

Color: White

Pressure Max: 10 bar / 150 psi

Diameter: 43 cm / 16.9 in

Features & Benefits

  • High-temperature butyl diaphragm
  • Patented stainless steel water connection
  • High expansion volume factor
  • Dual layer polyurethane paint finish
  • Leak-free O-ring sealed air valve
  • Replaceable tank base
  • Comprehensive testing
  • Maintenance-free

Product Certifications

Downloads

SELL SHEET SOLARWAVE EN

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SWB-130LV

Water Movement: Non-Potable Hot Water Expansion Tanks


Model number: SWB-130LV
SolarWave™ 130-liter / 34.34-gallon vertical expansion tank with a 1" BSPP connection, pre-charged to 1.9 bar / 28 psi. High-capacity and durable.

TEMP MAX: 130°C / 266°F

PRESSURE PRE-CHARGE BAR: 1.9 bar / 28 psi

NOMINAL VOLUME: 130 Liter / 34.34 Gallon

CONNECTION: 1" BSPP (F)

COLOR: White

PRESSURE MAX: 10 bar / 150 psi

DIAMETER: 43 cm / 16.9 in

SWB-150LV

Water Movement: Non-Potable Hot Water Expansion Tanks


Model number: SWB-150LV
150-liter / 39.63-gallon vertical SolarWave™ expansion tank with 1" BSPP connection. Designed for solar systems.

TEMP MAX: 90°C / 194°F

PRESSURE PRE-CHARGE BAR: 1.9 bar / 28 psi

NOMINAL VOLUME: 150 Liter / 39.63 Gallon

CONNECTION: 1" BSPP (F)

COLOR: White

PRESSURE MAX: 25 bar / 363 psi

DIAMETER: 80 cm / 31.5 in