Valve Handwheel Types : Fixed, Hammer, Gear Handwheels are the most common valve actuator. The handwheel is used to manually…

4-Wire, Three-Phase Wye Wiring System Unlike single-phase wiring, which requires a neutral leg and a separate ground, the three-phase system…

Types of Allen Bradley PLC The company makes programmable logic controllers (PLCs), human-machine interfaces, sensors, safety components and systems, software,…

Normally-open and Normally-closed Switch Contacts The definition of a sensor’s normal status is perhaps the most perplexing part of discrete…

Simplified Formulas for Parallel Circuit Resistance Calculations Calculating the equivalent resistance (REQ) of parallel resistors by hand is time-consuming. This…

Types of Cable Trays – Purpose, Advantages, Disadvantages Cable tray systems are alternatives to wire ways and electrical conduit, which…

What is Marshalling Cabinet? Between the system cabinet and the field junction boxes, the marshalling cabinet serves as an interface.…

Hydraulic and Pneumatic P&ID Diagrams and Schematics Because fluid power diagrams and schematics use a distinct set of symbols and…