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Air cylinders are pneumatic linear actuators that are driven by a pressure differential in the cylinder's chambers. They may be single-acting (with a spring return) or double-acting.
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Audible alarms provide an audible indication of a hazardous situation.
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Ball valves provide tight shut-off and characterizable control. They have high rangeability due to the design of the regulating element, without the complications of side loads typical of butterfly or globe valves.
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Butterfly valves control flow through a circular disc or vane by turning the valve's pivot axis at right angles to the direction of flow in the pipe. They are normally used as throttling valves to control flow.
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Control valves or proportional valves are power-operated devices used to modify fluid flow or pressure rate in a process system.
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Electric actuators mount on valves which, in response to a signal, automatically move to a desired position using an outside power source. Single-phase or three-phase AC or DC motors drive a combination of gears to generate the desired torque level.
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Fire alarm control panels (FACP) are systems which receive information from input devices (smoke detectors, heat detectors, etc.), process the information, and trigger an output device such as an audio or visual alarm.
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Globe valves are linear motion valves with rounded bodies, from which their name is derived. They are widely used in industry to regulate fluid flow in both on/off and throttling service.
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Humidity measurement instruments test for absolute humidity, relative humidity, or dew point in air.
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HVAC controllers are used to monitor and control heating, ventilation and air conditioning (HVAC) systems in buildings. They monitor indoor environmental factors such as temperature and humidity, and control heating and cooling to maintain desired levels.
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Industrial valves are classified in many different ways. They can be distinguished by material of construction, media handled, and/or application.
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Machine controllers and monitors use electronic numeric control and monitoring interfaces for programming and calibrating computerized machinery.
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Moisture meters are used to measure the moisture content in bulk solids, liquids and gases.
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Pressure relief valves are self-actuated safety valves designed to relieve excess pressure upstream from the line.
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Programmable logic controllers (PLCs) are the control hubs for a wide variety of automated systems and processes. They use a wide variety of inputs and outputs and provide network capability.
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RTD (resistive temperature device) elements are wire windings or other thin-film serpentines that exhibit changes in resistance with changes in temperature.
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Signal conditioning products provide amplification, filtering, converting, and other processes required to make sensor output suitable for reading by computer boards.
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Smoke detectors are designed to sense the products of combustion. Common types include ionization chambers and photoelectric devices.
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Specialty industrial process controllers are used in unlisted, specialized or proprietary applications.
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Temperature controllers accept inputs from temperature sensors or thermometers, and then output a control signal to keep the temperature at the desired level.
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Temperature instruments use contact or noncontact methods to measure temperature. Products include dial, digital, industrial and laboratory thermometers; temperature probes, indicators, and sensors; RTD elements and transmitters; and thermistors, thermocouples, thermopiles, and thermal switches.
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Thermistors are thermally-sensitive devices whose electrical resistance varies with temperature. Unlike RTDs and thermocouples, thermistors do not have standards associated with their resistance vs. temperature characteristics or curves.
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Valve actuators mount on valves and, in response to a signal, move a valve to a desired position using an outside power source.
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Warning lights provide a visual indication of a hazardous situation.
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