Sun Hydraulics 9KV9-RPGC-LCN NSMD Hydraulic Control Valve

Sun Hydraulics 9KV9-RPGC-LCN NSMD is a pilot-operated, balanced-piston relief cartridge valve that protects hydraulic systems by limiting system pressure and relieving excess flow back to the reservoir. Designed as part of Sun’s RPGC-LCN family, this cartridge fits Sun valve bodies and cavities built to accept RPGC-LCN relief cartridges, delivering precise pressure regulation through its pilot-controlled main stage. The unit uses Buna-N seals, providing compatibility with common hydraulic fluids and contributing to dependable long-term performance in demanding environments. As a cartridge valve, it enables compact, in-line installation and straightforward replacement in modular hydraulic manifolds. Typical applications include protection of pumps, actuators, and downstream components in industrial power units, machine tools, presses, and automated production lines where reliable overpressure protection and repeatable relief characteristics are essential. The 9KV9-RPGC-LCN-NSMD variation represents that specific cartridge configuration within the RPGC-LCN line, sharing the same core relief-function, pilot-operated control, and balanced-piston main stage design, while differing in mounting, cavity, or accessory details defined by Sun’s product catalog.