RBM's Sferika range, the result of the acquisition of the GS Gnutti Sebastiano brand, includes 5 different ranges of ball valves and 2 different types of check valves.
• Arno, the historic series of GS valves, all full bore and made with gland type seal. Suitable for transporting water, steam and hydrocarbons.
• Nilo, a series of RBM ball valves, all full bore and "non-explosive".
• Iro, a series of RBM ball valves, standard bore and "non-explosive".
• Rio gas , the series of GS ball valves for transporting gas, all full bore and fully compliant.
• Everest, the historic range of GS brass check valves.
• K2, RBM check valves, also available in "mini" version for smaller spaces.