Siemens 73N12F Built-In Valve Positioner for Industrial Process Control

Description The Siemens 73N12F is a built-in pneumatic valve positioner from the Series 73 line, designed for precise control in industrial applications. Technical Specifications Condition New/Never Used Surplus Brand Siemens Category Valves Part Number 73N12F Subcategory Valve Positioner Series 73 Input Signal Range 3–15 psig Action Type Direct Action Input Pressure (Max for Direct Action) 12 psig or less Valve Travel Range ¼" to 4" Mounting Top Loading Operating Temperature Range -40°C to +82°C (-40°F to +180°F) Weight 3.307 lbs Information About 73N12F The Siemens 73N12F is a pneumatic built-in valve positioner from the Series 73 line, designed for precise control of valve actuators in industrial applications. It operates on a single-axis force-balance principle, ensuring accurate and stable positioning of control valves. Key Features: Input Pressure Range: 3–15 psig (with options for 3–9, 9–15, and 3–27 psig) Action Type: Direct Action Valve Travel Range: ¼" to 4" Supply Pressure: Minimum of 3 psi above actuator requirement; maximum 100 psi Air Consumption: Approximately 0.25 SCFM (in balance condition with 20 psi supply and 9 psi dead-ended output) Operating Temperature: -40°C to +82°C (-40°F to +180°F) Mounting: Top-loading configuration Exhaust Option: Tapped exhaust available for applications using noxious gases Fast Response ('F' Designation): Enhanced pilot plunger travel and larger ports provide greater filling and exhausting capacities, resulting in increased valve operation speed Tapped Exhaust Option: Allows pilot exhaust to be safely piped to a designated atmosphere, suitable for hazardous media applications USM Variant: Tailored for actuators with small topworks and low volume, featuring a special high-response positioner without bleed, ensuring rapid response for precise control This positioner is ideal for controlling valve actuators in processes requiring precise modulation, such as flow, temperature, and pressure control systems. Its robust design and adaptability make it suitable for a wide range of industrial environments.