The thermosyphon arrestor valve (TA valve) is fitted to a thermosyphon solar hot water system to limit the water temperature in the storage cylinder to approximately 80°C. The valve is located at the cold return to the collectors and closes automatically when water from the bottom of the storage cylinder, passing through the valve, reaches 60°C - 65°C. This prevents any further thermosypon action from taking place until the temperature in the storage cylinder reduces. When the water temperature in the storage cylinder reduces the valve opens automatically, allowing the thermosyphon action to resume.

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Technical Specification

Fluid: Water

Max. Static Pressure: 1,400 kPa

Max. Inlet Temperature: 90°C

Valve Body: UNI EN12164 CW602N

Springs: Stainless Steel

Internal Seals: EPDM Perox