(1) Before installing the valve, study drawings, determine the main pipe, riser and branch pipe and equipment, the system is divided into units, to determine the flow of each balancing valve and marked on the drawings, the design of each main pipe flow is equal to the sum of design flow branch . (2) When installing the valve, to ensure the accuracy of the flow, a certain length of straight pipe should be arranged before and after the balancing valve, and the direction of the water flow should be consistent with the direction of the arrow. (3) Check all the filters and clear the air in the system. (4) Open all shut-off valves should be opened, open all control valves, and then select any of the units, select any of the balancing valve in the unit, using a digital measuring computer to measure the pressure differential at the existing valve opening; the valve Close completely, measure the pressure difference, and then reopen the valve to its original position. (5) The valve required flow into the digital measurement computer with a balance program, including the unit within the other balance valve are repeated the previous action, the unit all the valve flow are entered, the computer will calculate the opening of each balance valve . (6) Adjust the valve to the calculated opening based on the value on the handwheel and rebalance the next unit.
