Controllers; Thermostats; Measurement


R1 179.55 Incl VAT

These filling valves are basically a requirement in any central heating system and in a variety of other applications. One pre-sets the pressure at which a closed system should be working. If for whatever reason air is released from the closed system (either via an automatic air release valve or manually), then the overall system pressure drops. The automatic filling valve will then top off the system with water until the required pressure is reached. This kind of a valve makes de-airing central heating systems extremely quick and easy. In the case of overheating of the central heating system – hot water is released from the system and needs to be topped off. In this situation also a filling valve would be required in order to top off the system to the required pressure.

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