An electric motor driven by alternating electric current.
A dynamic pump that contains impellers provided with vanes to generate centrifugal force to achieve the required pressure head.
A detector that is intended to sense a flame.
A physical object that is a circular plate with no central opening and holes to match mating flanged ends. It is also equipped with a handle.
A physical object that is a general term covering switching devices and their combination with associated control, measuring, protective and regulating equipment, also assemblies of such devices and equipment with associated interconnections, accessories, enclosures and supporting structures.