An Introduction to Instruments and Devices for Boiler Control Systems

This publication provides an introduction to instruments and devices employed in boiler control systems. Both panel instruments and local devices and instruments are discussed. Requirements are provided for controllers, recorders, totalizers, indicators, status lights, annunciators, selector switches, pushbuttons, and plant control stations. You will learn about control valves, pressure regulators, solenoid valves, actuators, current-to-pneumatic converters, dampers, pressure relief valves, rupture disks, level instruments, flow instruments, temperature measurements, pressure measurements, electronic transmitters, electrical instrument switches, analyzers, flame detectors and continuous emission monitoring. You will be introduced to recommended boiler control panel instrumentation as well as local boiler devices.

Paul Guyer is a registered civil engineer, mechanical engineer, fire protection engineer, and architect with over 35 years experience in the design of buildings and related infrastructure. For an additional 9 years he was a principal advisor to the California Legislature on infrastructure and capital outlay issues. He is a graduate of Stanford University and has held numerous national, state and local offices with the American Society of Civil Engineers, Architectural Engineering Institute and National Society of Professional Engineers.