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2. Control valve - Wikipedia

   en.wikipedia.org/wiki/Control_valve

   An automatic control valve consists of three main parts in which each part exist in several types and designs: Valve actuator – which moves the valve's modulating element, such as ball or butterfly. Valve positioner – which ensures the valve has reached the desired degree of opening. This overcomes the problems of friction and wear.

3. Flow control valve - Wikipedia

   en.wikipedia.org/wiki/Flow_control_valve

   The most common final control element in the process control industries is the control valve. The control valve manipulates a flowing fluid, such as gas, steam, water, or chemical compounds, to compensate for the load disturbance and keep the regulated process variable as close as possible to the desired set point. [1]

4. Valve actuator - Wikipedia

   en.wikipedia.org/wiki/Valve_actuator

   A linear actuator opens and closes valves that can be operated via linear force, the type sometimes called a "rising stem" valve. These types of valves include globe valves, rising stem ball valves, control valves and gate valves. [2] The two main types of linear actuators are diaphragm and piston.

5. Hans Baumann (inventor) - Wikipedia

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

   In 1977, he founded H. D. Baumann Assoc., Ltd., manufacturing control valves; the company was subsequently acquired by Fisher Instruments, and is now part of Emerson Process Management. [2] Baumann is a licensed Professional Engineer in four states and a member of Sigma Xi, the Scientific Research Society. [2]

6. Georg Fischer (company) - Wikipedia

   en.wikipedia.org/wiki/Georg_Fischer_(company)

   GF Piping Systems supplies is piping systems made of plastics and metal as well as solid and hollow bar stock for machining. The division makes components for the transport of water and gas in industry, utilities, and buildings. Its product line includes fittings, valves, pipes, automation and jointing and covers all water cycle applications.

7. AOL Mail for Verizon Customers - AOL Help

   help.aol.com/products/aol-mail-verizon

   AOL Mail welcomes Verizon customers to our safe and delightful email experience!