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High pressure expansion valve
DN 15, max. 1 400 kPa | HPNR Reliance Worldwide

The HPNR Valves are specifically intended for application on coil type heat exchange water heaters. The valve is a combination non-return and pressure relief device. The non-return prevents the backflow of hot water into the mains supply. The relief valve prevents and overpressure condition within the coil.

The HPNR Valves are available in a standard 15mm size, and in restricted and unrestricted flow models.
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