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  2. Diving cylinder - Wikipedia

    en.wikipedia.org/wiki/Diving_cylinder

    Valve ejected due to mix up with valve threads 3/4"NPSM and 3/4"BSP(F) caused damage to a dive shop compressor room. [92] A valve ejected during filling due to incompatible thread killed the operator by impact to the chest. [38] A valve failed on a diver's emergency cylinder on a diving support vessel during preparation for a dive injuring five ...

  3. Non-rebreather mask - Wikipedia

    en.wikipedia.org/wiki/Non-rebreather_mask

    The valve, along with a sufficient seal around the patient's nose and mouth, allows for the administration of high concentrations of oxygen, approximately 60% - 90% O 2. [ 2 ] [ 3 ] Many textbooks report higher oxygen concentrations, however formal studies reporting these levels are not referenced to research.

  4. Flow coefficient - Wikipedia

    en.wikipedia.org/wiki/Flow_coefficient

    A simplified version of the definition is: The k v factor of a valve indicates "The water flow in m 3 /h, at a pressure drop across the valve of 1 kgf/cm 2 when the valve is completely open. The complete definition also says that the flow medium must have a density of 1000 kg/m 3 and a kinematic viscosity of 10 −6 m 2 /s, e.g. water. [clarify]

  5. Mechanism of diving regulators - Wikipedia

    en.wikipedia.org/wiki/Mechanism_of_diving_regulators

    In upstream valve regulators or regulators with an isolation valve at the second stage, such as the bailout valve on a surface supplied helmet or full-face mask, this relief valve function of the second stage may not be available, and a pressure relief valve on the first stage is necessary to prevent the pressure in the hose rising until it ...

  6. Cascade filling system - Wikipedia

    en.wikipedia.org/wiki/Cascade_filling_system

    P 2 and V 2 the initial pressure and volume of the other cylinder and P 3 is the equilibrium pressure. An example could be a 100-litre (internal volume) cylinder (V 1) pressurised to 200 bar (P 1) filling a 10-litre (internal volume) cylinder (V 2) which was unpressurised (P 2 = 1 bar) (resulting in both cylinder equalising to approximately 180 ...

  7. Oil pump (internal combustion engine) - Wikipedia

    en.wikipedia.org/wiki/Oil_pump_(internal...

    [c] These are supplementary pumps and do not replace the main, mechanical, oil pump. Electric pump as a main engine pump again will require big electric motors and it may be simply cheaper to drive directly from the engine. For e.g. BMW S65 engine's oil pump delivers ca. 45 LPM (Litres Per Minute) of oil at 5.5 bar pressure. [5]

  8. Gang-tied illegal immigrant ‘giggled’ as he confessed to ...

    www.aol.com/gang-tied-illegal-immigrant-giggled...

    The stolen vehicle was entered into law enforcement databases, and was spotted in a parking lot by a police officer on Christmas Day in Oklahoma City, some 200 miles away.

  9. Thermal expansion valve - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion_valve

    An air conditioning system with a TX valve is often more efficient than those with designs that do not use one. [2] Also, TX valve air conditioning systems do not require an accumulator (a refrigerant tank placed downstream of the evaporator's outlet), since the valves reduce the liquid refrigerant flow when the evaporator's thermal load ...