Truma - Truma Boiler Safety Drain Valve TB 2.8B
Truma Boiler Safety Drain Valve (Part No. 70141-02 / 70142-05)
Protect your water system and enjoy peace of mind with the Truma Boiler Safety Drain Valve. Specially designed for Truma Ultrastore and Combi boilers, this genuine replacement part combines pressure relief and frost protection in one reliable unit.
Made from durable thermostable plastic with internal brass components, it’s built to OEM standards for long-lasting performance—even in demanding caravan and motorhome environments.
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Dual Function – Relieves boiler pressure above ~2.8 bar and allows manual draining
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Frost Protection – Yellow lever ensures complete drainage during cold weather storage
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Easy Installation – Push-fit John Guest connectors (10 mm / 12 mm) for quick, secure fitting
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Built to Last – Withstands −30 °C to +80 °C and pressures up to 4.5 bar
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Versatile Fit – Suitable for Truma Ultrastore, Combi, and other compatible piping systems
Whether you’re preparing for winter or simply maintaining your Truma system, this safety drain valve is a must-have for protecting your boiler and pipework against frost damage and overpressure.
