Turning valves and valve handwheels is an vital task in maintaining water infrastructure. An organization can have hundreds or even thousands of valves that must be controlled, or in some industries “exercised”, the process of running a valve through its full cycle to prevent sticking or freezing caused by factors such as tuberculation. With good planning and execution, a valve exercise program will realize a very low percentage of negative results.These facts seem to contradict the general opinion throughout the water utility industry that an exercise program will cause more work and aggravation than it is worth. This is simply not the case. The purpose of the Valve Exercising Program is to exercise main line valves throughout the distribution system to assure reliable operation and maintain water quality. Each valve is operated through a full cycle and returned to its normal position.

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• Valve Exercise Program Template
• Water Utility Valve Exercise Program

In an emergency, sections of a distribution system may need to be shut down without delay. However, if a valve is not used over a period of time it can seize-up from corrosion and get stuck, making the valve inoperable. A valve exercising program helps maintain the useful life an operation of water system valves. The mitral valve is located in the heart's left ventricle between the upper and lower chambers. This valve has a right and left section that open to allow blood to move from the upper atrium and the lower ventricle on the left side of the heart, and then close to prevent the backflow of blood. Exercise Those Valves So, what is a valve exercise program? Basically, there are four components to a valve exercise program: 1. Locate the valves, 2. Fully exercise valves, 3. Maintain detailed valve records, and 4. Schedule and perform needed repairs.

Abstract

Valve Exercise Program Template

A controlled trial was undertaken to examine the efficacy of physical training in patients recovering from the replacement of a single heart valve. Patients were allocated to a test or control group two weeks after operation. Each patient performed a submaximal exercise test at entry, and 12 and 24 weeks after this test. The Canadian Air Force exercise programme was undertaken by the test group, while the control group continued normal activities for the 24 weeks between the first and last exercise group. A regression line of submaximal heart rate on oxygen consumption was calculated from the data of each exercise test in each patient. Alterations in this line were used as an 'index' of changes in 'cardiorespiratory fitness'. The individual results showed a consistent improvement in 'cardiorespiratory fitness' over the first 12 weeks in both groups. Only patients in the test group continued to improve between 12 and 24 weeks. Thus the exercise programme modified the recovery of 'cardiorespiratory fitness' after operation. Results in patients who developed clinical complications, and were excluded from the trial, predicted a deteriorating clinical condition. This finding suggested that sequential exercise tests are of value after cardiac surgery.

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Water Utility Valve Exercise Program