Bidirectional A04J2 pressure relief valves from Sterling Hydraulics, which feature a cost- and space-saving single-cavity design, are now available in CE-marked versions that are suitable for use on all equipment required to comply with the Pressure Equipment Directive 97/23/EC (PED). The valves are rated for the highest safety level defined by the PED – Category IV – and are, therefore, also suitable for use in
systems with hazard ratings which fall into Categories I, II and III.