Indirect solar heating expansion tanks

SWB-35LX

The SolarWave™ 35-liter / 9.25-gallon inline expansion tank offers durable and efficient thermal expansion management for solar heating systems. Its high-temperature butyl diaphragm and patented stainless-steel water connection ensure long-lasting reliability, even in extreme conditions. The tank’s leak-free O-ring sealed air valve and replaceable base minimize maintenance needs.

Pre-charged to 1.9 bar / 28 psi and fitted with a 0.75" BSPT (c/w NPT) connection, this inline tank integrates seamlessly into solar closed-loop and hydronic heating systems. The robust carbon steel shell, finished with dual-layer polyurethane paint, provides excellent corrosion resistance and durability for years of dependable operation.

  • Solar closed loop circuits
  • Hydronic heating circuits

MODEL NUMBER: SWB-35LX

Temp Max: 130°C / 266°F

Pressure Pre-charge bar: 1.9 bar / 28 psi

Nominal Volume: 35 Liter / 9.25 Gallon

Connection: 0.75" BSPT (M)

Color: White

Pressure Max: 10 bar / 150 psi

Diameter: 31.8 cm / 12.5 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

CE

Europe

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EAC

Russia

Downloads

SELL SHEET SOLARWAVE EN

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HeatWave Tank - 35 liter / 9.25 gallon inline, 1 bar / 15 psi, 0.75" BSPT (c/w NPT) connection, Gray finish. Durable for larger hydronic systems.

TEMP MAX: 99°C / 210.2°F

PRESSURE PRE-CHARGE BAR: 1 bar / 15 psi

NOMINAL VOLUME: 35 Liter / 9.25 Gallon

CONNECTION: 0.75" BSPT (M)

COLOR: Gray

PRESSURE MAX: 6 bar / 87 psi

DIAMETER: 31.8 cm / 12.5 in

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