How do you choose a control valve?

How do you choose a control valve? Control Valve SelectionGive careful consideration to selecting the correct materials of construction. Consider the operating temperature and pressure the control valve will be exposed to. Consider the degree of control you require and ensure the selected valve is mechanically capable of achieving the desired operating conditions. How do…

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What does Coefficient of Variation tell you?

What does Coefficient of Variation tell you? The coefficient of variation (CV) is the ratio of the standard deviation to the mean. The higher the coefficient of variation, the greater the level of dispersion around the mean. It is generally expressed as a percentage. The lower the value of the coefficient of variation, the more…

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What is the meaning of horsepower?

What is the meaning of horsepower? horsepower. [ hrspour ] A unit that is used to measure the power of engines and motors. One unit of horsepower is equal to the power needed to lift 550 pounds one foot in one second. This unit has been widely replaced by the watt in scientific usage; one…

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Can an ECG detect hypertension?

Can an ECG detect hypertension? An ECG (electrocardiogram) records the electrical activity of your heart at rest. It provides information about your heart rate and rhythm, and shows if there is enlargement of the heart due to high blood pressure (hypertension) or evidence of a previous heart attack (myocardial infarction). How does hypertension cause congestive…

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