DAYLIFF MJ, Инструкция по установке и эксплуатации

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Fig 1
MJ/PD Meter Installation
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When replacing an existing water meter, loosen meter couplings and
remove the meter and the old gaskets in the coupling nuts.
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Clean the coupling nuts, removing any dirt from the threads.
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Verify the existing setting for proper alignment and spacing. Correct any
misalignment and spacing in the setting.
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Place the connection gaskets inside the connection coupling nuts. Use
rubber gasket hardness of 80-90 Shore A.
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Set the meter between the coupling nuts, properly positioned so that the
flow indication/arrow on the meter housing points in the direction of flow.
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Start the coupling nuts at the threaded meter ends. Verify that the coupling
nuts are properly aligned to avoid cross threading damage (stripping) to
the meter ends. This is especially important for the engineered
composite/polymer meter.
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The best method for properly starting meter coupling nuts is to position the
nuts squarely against the meter end. Turn the nut counterclockwise (in
reverse) while holding the nut against the meter end. When the first
threads on both the coupling nut and the meter spud end coincide, a
slight click will be heard and the movement of the nut into the starting
position will be felt. At this point, turn the nut clockwise to complete the
connection.
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In a good installation, this can be accomplished by turning the nut by
hand until it is tight. When firmly hand tight, apply an additional ¼ to ½
turn using an open-end wrench with a short handle.
WARNING
DO NOT over tighten.
Coupling Gasket
Coupling Nut
Meter
Tail Piece
PD/MJ Water Meter