Abstract:
A terminal feedthrough is provided. The terminal feedthrough includes a terminal pin insert having a pair of ends. A polymeric body having an externally threaded region is disposed about the terminal pin insert to form an interface with the terminal pin insert. At least one of threads of the externally threaded region and a cylindrical pin interface is configured to provide a flame-quenching pathway.
Abstract:
A magnetic flowmeter flowtube assembly includes a conduit with a first end and a second end. A first neck flange is coupled to the first end of the conduit and has an inside diameter with a first notch extending radially outwardly therefrom. A second neck flange is coupled to the second end and has an inside diameter with a second notch extending radially outwardly therefrom. A fluoropolymer liner is disposed within and extends through the first neck flange, the conduit and the second neck flange. A pair of electrodes is mounted relative to the liner to measure a voltage induced within a process fluid flowing through the liner. A first spring-energized seal ring is disposed in the first notch and a second spring-energized seal ring disposed in the second notch. A method of sealing a magnetic flowmeter having a fluoropolymer liner is also provided.
Abstract:
A magnetic flowmeter flowtube assembly includes a conduit with a first end and a second end. A first neck flange is coupled to the first end of the conduit and has an inside diameter with a first notch extending radially outwardly therefrom. A second neck flange is coupled to the second end and has an inside diameter with a second notch extending radially outwardly therefrom. A fluoropolymer liner is disposed within and extends through the first neck flange, the conduit and the second neck flange. A pair of electrodes is mounted relative to the liner to measure a voltage induced within a process fluid flowing through the liner. A first spring-energized seal ring is disposed in the first notch and a second spring-energized seal ring disposed in the second notch. A method of sealing a magnetic flowmeter having a fluoropolymer liner is also provided.
Abstract:
A polymeric flow tube assembly is provided. The flow tube assembly includes a flow conduit configured to allow fluid flow therethrough. A first coil is mounted with respect to the flow conduit and disposed about a first magnetic pole member. A second coil is mounted with respect to the flow conduit and is disposed about a second magnetic pole member. The second magnetic pole member is configured to cooperate with the first magnetic pole member to generate an electromagnetic field across a flow measurement aperture. First and second electrodes are positioned within the flow tube assembly to measure an electromotive force generated within a fluid in the flow measurement aperture. At least one of the first magnetic pole member, second magnetic pole member, first electrode and second electrode is formed, at least in part, of a polymer.
Abstract:
A terminal feedthrough is provided. The terminal feedthrough includes a terminal pin insert having a pair of ends. A polymeric body having an externally threaded region is disposed about the terminal pin insert to form an interface with the terminal pin insert. At least one of threads of the externally threaded region and a cylindrical pin interface is configured to provide a flame-quenching pathway.