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pressure

Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled gage pressure) is the pressure relative to the ambient pressure.
Various units are used to express pressure. Some of these derive from a unit of force divided by a unit of area; the SI unit of pressure, the pascal (Pa), for example, is one newton per square metre; similarly, the pound-force per square inch (psi) is the traditional unit of pressure in the imperial and US customary systems. Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere (atm) is equal to this pressure and the torr is defined as  1⁄760 of this. Manometric units such as the centimetre of water, millimetre of mercury, and inch of mercury are used to express pressures in terms of the height of column of a particular fluid in a manometer.

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  1. P

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  2. J

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  3. F

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  4. D

    Pumps to boost pressure for combi boiler flat?

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  5. K

    Boosting Water Pressure

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  6. J

    Landlord Gas safety check. Operating pressure

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  7. S

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  8. I

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  9. I

    LOW PRESSURE MIXER TAP & PIPING

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  10. O

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  11. U

    V&B shower mixer - restricting pressure?

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  12. A

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  13. N

    Water Pressure for new Garden Tap

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  14. M

    Boiler constantly increasing pressure.

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  15. A

    Low hot and cold water pressure

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  16. CorgiDirect

    NEW Anton Pressure Meter and Gas Leak Detector Range now available

    VIEW MORE INFO HERE
  17. S

    recommended pressure accumulator for longevity

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  18. N

    Air accumulating in system. No pressure loss...

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  19. D

    Hot water flowing out of electric water tank through pressure-release/overflow pipe?

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  20. D

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