Castel introduces 3030 series safety valves for HFO and hydrocarbon refrigerant systems

MILAN, Italy, 17 March 2026: Castel said it has expanded its range of safety devices with the introduction of the 3030 series safety valves designed for refrigeration and air-conditioning systems using HFO and hydrocarbon refrigerants classified as A2L and A3.

Making the announcement through a Press Release, Castel said modern refrigeration systems are increasingly operating under demanding conditions that combine higher working pressures and elevated discharge temperatures. According to the company, the 3030 series has been developed to address such conditions, with set pressures reaching up to 50 bar and operating temperatures up to 150 degrees C.

The company said the valves feature a compact design and incorporate materials intended to support use in a range of refrigeration and air-conditioning installations. Castel added that the series offers a set-pressure range between 8 and 50 bar, allowing installation in both low-pressure and high-pressure sections of refrigeration systems.

According to Castel, one of the design features of the 3030 series is repeatable performance after activation, with the valve maintaining its original calibration following operation. The company said this characteristic is intended to support continued system protection over time.

Castel said the development of the new safety valve series forms part of its broader portfolio of safety components intended for refrigeration systems operating with natural and low-GWP refrigerants.