Most searched for brands of measuring and regulation technology
Automatic air vent valve R99I for heating and cooling systems with a check valve, 1/2". More information
Delivery to Belgium (days are avarages)
DHL Express: 1.6 workdays, € 16,94
| Connection size | 1/2" |
| Weight | 0.22 kg |
Catalog sheet download
Download PDF
Cleaning instructions download
Download PDF
Declaration of conformity download
Download PDFThe valve is suitable for all heating and cooling systems where it is necessary to release air to prevent damage to the distribution network. It automatically releases air from the pipes as soon as the overpressure in the system increases, and conversely prevents the formation of vacuum by admitting air when water is being drained from the system. In cooling systems, it is capable of working with antifreeze mixtures based on glycol with a maximum concentration of 50% and a minimum medium temperature of -30 °C.
High-quality materials ensure high reliability and performance. It is designed to withstand increased load during water filling of the network and thus high initial air release, as well as intermittent, sporadic air release during normal operation.
The R99I valve also includes a non-return valve, which allows the valve to be dismantled without having to drain the water from the entire system.
A float is located in the valve body. If the entire space is flooded with water, the float is in a raised position and the valve remains closed, preventing any discharge. If the level drops and air enters the valve space, the float descends and the valve opens to release excess air. The water level then returns to its original level and the valve closes again.
The valve has a cap that can close the entire valve, but it remains open during normal operation.
We respond to your product queries as quickly as possible, usually within 24 hours.
Bola.cz
Didn't find what you wanted to know?