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  2. Valve actuator - Wikipedia

    en.wikipedia.org/wiki/Valve_actuator

    Just like there is a multitude of valves there is also a multitude of valve attachments. Dimensions and design of valve mounting flange and valve attachments are stipulated in the standards EN ISO 5210 for multi-turn actuators or EN ISO 5211 for part-turn actuators. The design of valve attachments for linear actuators is generally based on DIN ...

  3. List of valves - Wikipedia

    en.wikipedia.org/wiki/List_of_valves

    Gate valve, mainly for on–off control, with low pressure drop; Globe valve, good for regulating flow. Uses a cylinder movement over a seat; Knife valve, similar to a gate valve, but usually more compact. Often used for slurries or powders on–off control; Needle valve for accurate flow control; Pinch valve, for slurry flow regulation and control

  4. Hans Baumann (inventor) - Wikipedia

    en.wikipedia.org/wiki/Hans_Baumann_(inventor)

    Hans D. Baumann is a German-American inventor and engineer. He has registered over 200 patents and produced 105 publications. He is known internationally as a valve specialist and is an expert on aerodynamic noise of gases and he is a frequent contributor to the NEWSMAX Magazine INSIDERS website.

  5. List of 7400-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_7400-series...

    Conversely, the 4000-series has "borrowed" from the 7400 series – such as the CD40193 and CD40161 being pin-for-pin functional replacements for 74C193 and 74C161. Older TTL parts made by manufacturers such as Signetics , Motorola , Mullard and Siemens may have different numeric prefix and numbering series entirely, such as in the European FJ ...

  6. Control valve - Wikipedia

    en.wikipedia.org/wiki/Control_valve

    Air-actuated control valves each with a 4–20 mA "I to P" converter integral to a valve positioner. In this example each positioner is comparing the valve steam travel against control signal, and applying any correction. The opening or closing of automatic control valves is usually done by electrical, hydraulic or pneumatic actuators. Normally ...

  7. DIN 72552 - Wikipedia

    en.wikipedia.org/wiki/DIN_72552

    starter control 50a 50f starter control 50 50g starter control 50a 50h starter control 50 Battery 15 battery+ through ignition switch 16, 54/15 30 from battery+ direct 30/51 30a from 2nd battery and 12/24 V relay: 31 return to battery- or direct to ground 31a return to battery- 12/24 V relay 31b return to battery- or ground through switch 85d 31c