Hydraulic Cartridge Valves Hydraulic Cartridge ValvesHCA provides the full range of Sun Hydraulic cartridge valves, backed by highly experienced support and knowledge. Click below to find about more information on Sun's cartridge valve range. Pressure Control Relief Reducing Reducing / Relieving Sequence Electro-Proportional FLeX Series Flow Control Reducing Relief Reducing / Relieving Sequence Flow Control FLeX Series Needle Flow Control Flow Divider Flow Divider-Combiner Flow Fuse Modulating Spool Solenoid Operated FLeX Series 2-way 3-way 4-way 6-way Value Series Load Holding Counterbalance Load Control Pilot-to-open Check LoadMatch™ LoadAdaptive™ Logic Element Modulating Spool Balanced Poppet Unbalanced Poppet Specialty Accumulator Sense, Pump Unload Air Bleed and Start-up Cavity Plug Converter Filter Flow Fuse Directional Check Logic Element Shuttle Diverter FLeX Series 2-way 3-way 4-way 6-way Value Series Cavity Saver Accumulator Sense, Pump Unload Logic Element Flow Control Relief Sequence Logic Element How to choose the right relief valve https://www.youtube.com/watch?v=r6N8mX_itzsChoosing the right counterbalance valvehttps://www.youtube.com/watch?v=97UwibqpfrcSun Cavity Advantagehttps://www.youtube.com/watch?v=yWNOO3r7sXo&t=33s