Watts FluidAir R119-12JK M2 Pneumatic Pressure Pilot Regulator

The Watts FluidAir R119-12JK M2 Pneumatic Pressure Pilot Regulator is a 1-1/2 in. NPT pilot-operated, relieving regulator designed for high-flow compressed air systems that demand precise downstream pressure control. Its constant-bleed pilot and balanced poppet provide fast response and accurate regulation across varying flow, making it suitable for manufacturing facilities, process plants, automation systems, pneumatic control panels, and large compressed air distribution networks. Key specifications include a maximum inlet pressure of 300 PSI, a pressure adjustment range of 2–125 PSI, and a maximum flow capacity up to 500 SCFM, with a zinc/aluminum body and Buna-N seals, gauge ports 1/4 in. NPT, service media of compressed air, and an operating temperature range of 40°F to 125°F, installed inline in pneumatic systems. The regulator, under the Watts FluidAir (Parker) branding, is engineered for high-capacity downstream regulation to protect downstream valves, actuators, cylinders, and pneumatic equipment while improving overall system reliability.