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  2. Pressure switch - Wikipedia

    en.wikipedia.org/wiki/Pressure_switch

    Uses of pneumatic pressure switches include: Switch a household well water pump automatically when water is drawn from the pressure tank. Switching off an electrically driven gas compressor when a set pressure is achieved in the reservoir; Switching off a gas compressor, whenever there is no feed in the suction stage. in-cell charge control in ...

  3. Pressure tank - Wikipedia

    en.wikipedia.org/wiki/Pressure_tank

    A simple control system for a water well. Referring to the figure on the left, a submersible water pump is installed in a well. The pressure switch turns the water pump on when it senses a pressure that is less than P lo and turns it off when it senses a pressure greater than P hi. While the pump is on, the pressure tank fills up.

  4. Piping and instrumentation diagram - Wikipedia

    en.wikipedia.org/wiki/Piping_and_instrumentation...

    Piping and instrumentation diagram of pump with storage tank. Symbols according to EN ISO 10628 and EN 62424. A more complex example of a P&ID. A piping and instrumentation diagram (P&ID) is defined as follows: A diagram which shows the interconnection of process equipment and the instrumentation used to control the process.

  5. Dry running protection - Wikipedia

    en.wikipedia.org/wiki/Dry_running_protection

    There are three different methods for detection of water shortage: Pressure switch on suction manifold or float switch/electrode relay in the supply tank: Dry-running protection with pressure/level switch. Measurement of inlet pressure in the suction manifold by means of an analogue pressure transmitter: Dry-running protection with pressure ...

  6. Oil well control - Wikipedia

    en.wikipedia.org/wiki/Oil_well_control

    Slow pump pressure is the circulating pressure (pressure used to pump fluid through the whole active fluid system, including the borehole and all the surface tanks that constitute the primary system during drilling) at a reduced rate. SPP is very important during a well kill operation in which circulation (a process in which drilling fluid is ...

  7. Wellhead - Wikipedia

    en.wikipedia.org/wiki/Wellhead

    Provides pressure monitoring and pumping access to annuli between the different casing/tubing strings. Provides a means of attaching a blowout preventer during drilling. Provides a means of attaching a Christmas tree for production operations. Provides a reliable means of well access. Provides a means of attaching a well pump,

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