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2. Steam turbine governing - Wikipedia

   en.wikipedia.org/wiki/Steam_turbine_governing

   The flow rate of steam is monitored and controlled by interposing valves between the boiler and the turbine. [2] Depending upon the particular method adopted for control of steam flow rate, different types of governing methods are being practiced. The principal methods used for governing are described below.

3. Control valve - Wikipedia

   en.wikipedia.org/wiki/Control_valve

   A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller. [1] This enables the direct control of flow rate and the consequential control of process quantities such as pressure , temperature , and liquid level.

4. Air-operated valve - Wikipedia

   en.wikipedia.org/wiki/Air-operated_valve

   Modulating control valves each with 4-20mA I to P converter linked to pneumatic a valve positioner controlling a diaphragm actuator. An air-operated valve, also known as a pneumatic valve, is a type of power-operated pipe valve that uses air pressure to perform a function similar to a solenoid.

5. Stoneridge Passes This Key Test - AOL

   www.aol.com/news/2011-12-15-stoneridge-passes...

   There's no foolproof way to know the future for Stoneridge (NYS: SRI) or any other company. However, certain clues may help you see potential stumbles before they happen -- and before your stock ...

6. Blowoff valve - Wikipedia

   en.wikipedia.org/wiki/Blowoff_valve

   A blowoff valve is designed to release pressure in the intake system when the throttle is closed. A "recirculating" type blowoff valve releases the pressurised air back into the non-pressurized section of the intake (i.e. upstream of the turbocharger), while an "atmospheric venting" type blowoff valve dumps the air directly into the atmosphere.

7. Mass flow controller - Wikipedia

   en.wikipedia.org/wiki/Mass_flow_controller

   The MFC is fitted with a closed loop control system which is given an input signal by the operator (or an external circuit/computer) that it compares to the value from the mass flow sensor and adjusts the proportional valve accordingly to achieve the required flow. The flow rate is specified as a percentage of its calibrated full scale flow and ...