This model NKV 315-4 is a round one Hot water heater register the series VENTS NKV. It is used to heat the supply air in ventilation systems and is used as Air heater or air preheater used in central and decentralized systems. The housing is made of galvanized steel, the heat exchanger tubes are made of copper with aluminum fins for high heat output. The housing is made of galvanized sheet steel, the tube collectors are made of copper and the heat exchange surfaces are made of aluminum fins. The pipe connections are equipped with rubber seals and ensure an airtight connection. All models are designed for a maximum operating pressure of 1.6MPa (16bar) and a maximum operating temperature of +100°C designed. Each heating register is equipped with a vent nipple and a connection piece for an i.
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