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Plast-O-Matic's Proportional Controller (PRS) is an innovative solution for maintaining process liquid pressure at a constant value in various applications. This versatile proportional control device modulates air pressure to the pressure regulator, eliminating the need for expensive control valves. When used with Plast-O-Matic's Air-Loaded Pressure Regulator, the Proportional Controller ensures that your process operates efficiently and consistently. The PRS is suitable for applications where accurate pressure regulation is crucial, such as in hydraulic and pneumatic systems, chemical processing, and water treatment processes. It's crafted from durable polypropylene material and features Viton seals to ensure long-lasting performance even in harsh environments.