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  2. Quick connect fitting - Wikipedia

    en.wikipedia.org/wiki/Quick_connect_fitting

    For hoses and piping, a quick connect fitting, also called a push fitting, is a coupling used to provide a fast, make-or-break connection of gas or liquid transfer lines. Operated by hand, quick connect fittings replace threaded or flanged connections, which require wrenches. When equipped with self-sealing valves, quick connect fittings will ...

  3. Mean time to repair - Wikipedia

    en.wikipedia.org/wiki/Mean_time_to_repair

    Mean time to repair (MTTR) is a basic measure of the maintainability of repairable items. It represents the average time required to repair a failed component or device. [ 1 ] Expressed mathematically, it is the total corrective maintenance time for failures divided by the total number of corrective maintenance actions for failures during a ...

  4. Mean time between failures - Wikipedia

    en.wikipedia.org/wiki/Mean_time_between_failures

    MDT can be defined as mean time which the system is down after the failure. Usually, MDT is considered different from MTTR (Mean Time To Repair); in particular, MDT usually includes organizational and logistical factors (such as business days or waiting for components to arrive) while MTTR is usually understood as more narrow and more technical.

  5. MTTFd - Wikipedia

    en.wikipedia.org/wiki/MTTFd

    where MTTR is the mean time to repair. The MTTF of a system is the sum of MTTF S and MTTF D. To understand the relationship between MTTF S and MTTF D consider the case of a switch that turns a motor on or off. The switch has two failure modes: the switch can fail stuck closed or the switch can fail stuck open.

  6. Mean time to recovery - Wikipedia

    en.wikipedia.org/wiki/Mean_time_to_recovery

    Mean time to recovery (MTTR) [1] [2] [3] is the average time that a device will take to recover from any failure. Examples of such devices range from self-resetting fuses (where the MTTR would be very short, probably seconds), to whole systems which have to be repaired or replaced.

  7. Heat trap - Wikipedia

    en.wikipedia.org/wiki/Heat_trap

    Heat traps are valves or loops of pipe on the cold water inlet and hot water outlet of water heaters. The heat traps allow cold water to flow into the water heater tank, but prevent unwanted natural convection and heated water to flow out of the tank. [1] [2] Newer water heaters have built-in heat traps.

  8. Detroit Diesel Series 53 - Wikipedia

    en.wikipedia.org/wiki/Detroit_Diesel_Series_53

    The Detroit Diesel Series 53 is a two-stroke diesel engine series, available in both inline and V configurations, manufactured by Detroit Diesel as a more compact alternative to the older Series 71 for medium and heavy duty trucks. The number 53 refers to the nominal swept displacement per cylinder in cubic inches.

  9. Banjo fitting - Wikipedia

    en.wikipedia.org/wiki/Banjo_fitting

    An example of typical banjo fitting components (left) with an identical fitting connecting a hose to a tee fitting. A general schematic, not to scale, showing the fluid path in an assembled banjo fitting. A pair of banjo bolts as used in automotive braking.

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