The 20" Second Pressur Barrier Ring is an additional pressure balanced pressure barrier for the Blue Logic 20" Ventilation Valve BA8505. The pressure ring is installed onto the Ventilation valve by ROV to form an additional double acting pressure barrier on the valve if required.
Due to its pressure balanced deisng and extensive usage of polymeric materials, the ring is easily operated and installed/ removed by use of a standard work ROV system.
Design pressure 15bar.
Design life 15years