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fill valve

A gas-filled tube, also commonly known as a discharge tube or formerly as a Plücker tube, is an arrangement of electrodes in a gas within an insulating, temperature-resistant envelope. Gas-filled tubes exploit phenomena related to electric discharge in gases, and operate by ionizing the gas with an applied voltage sufficient to cause electrical conduction by the underlying phenomena of the Townsend discharge. A gas-discharge lamp is an electric light using a gas-filled tube; these include fluorescent lamps, metal-halide lamps, sodium-vapor lamps, and neon lights. Specialized gas-filled tubes such as krytrons, thyratrons, and ignitrons are used as switching devices in electric devices.
The voltage required to initiate and sustain discharge is dependent on the pressure and composition of the fill gas and geometry of the tube. Although the envelope is typically glass, power tubes often use ceramics, and military tubes often use glass-lined metal. Both hot cathode and cold cathode type devices are encountered.

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  1. B

    Toilet fill valve ID please

    Hello, as the title, the cistern keeps filling. The fill valve is passing, think it’s a viva skylo bottom entry with a plastic shank but there’s not markings or identification on it. Just wondering if anyone knows what type it is? I’d rather just replace the diaphragm inside if it’s one that’s...
  2. T

    Can I use push fit type tap connectors on toilet fill valve

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  3. P

    Changing a system fill valve

    Hello, I want to change the system fill valve, but I’m struggling to dismantle the existing toilet to access underneath the tank, I’ve added some pictures can anyone advise of the steps? Thanks!
  4. davidwf

    refill tube in fill valve

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  5. M

    Concealed cistern fill valve.

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  6. P

    How fix new fill valve plastic part?

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  7. R

    Cistern Fill Valve Drip

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  8. M

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  9. J

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  10. A

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  11. G

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  12. C

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  13. R

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    • Reggie
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    • Forum: USA
  14. W

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  15. moonlight

    r&t toilet fill valve A1250 not filling properly

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  16. D

    Flowmasta bottom entry fill valve

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  17. D

    Toilet Fill Valve

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  18. G

    Flomasta bottom entry fill valve with 5mm thick Poly Cistern

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  19. P

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  20. C

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    • america fill valve toilet usa valve
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