Dikkan DN400 사용 설명서 - 페이지 7
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6. PROTECTION DURING STORAGE AND TRANSPORT
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Valves should be stored in a closed place where will not be exposed to direct to sunlight.
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Valves shall be kept on pallets, avoiding any direct contact with the ground.
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Valves shall be protected from any external effects and mechanical damages in the storage place.
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Valves shall be protected from dust and dirt.
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Valves, keep the packaging until the moment of installation. (In valve packaging to prevent sweating, you are
not allowed to sudden changes in temperature in the storage area)
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Keep the valve in the storage space heat and flame sources.
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Protect the valve from excessive vibration during transportation.
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Optimum storage temperature is 5°C to 40°C.
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During the storage, it should be assured that the discs of the valves are in closed position. (except for
soft seal valves)
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Unload all valves from wooden pallets carefully to the ground without dropping. When lifting, the valve should
be secured by the body and never lifted by the trim.
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Good condition of stored products must be periodically verified.
7. INSTALLATION
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Pipelines and pipeline systems have to be installed in such way that no tensions from thermal expansion (or
other) of the pipeline may have impact on the valves. This can theoretically even lead to breaks in the valves,
causing danger from medium spills. DIKKAN offers suitable expansion joints for this purpose.
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Before installation, the pipeline must be cleaned off all dirt such as sand, dust, welding residues etc. Use
strainers, in suitable sections of the pipeline, for future protection of the valve from dirt and foreign substances.
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Verify that the valve is suitable for the operating specifications of the medium (installation); such as maximum
operating pressure, maximum operating temperature, corrosiveness and abrasiveness, etc.
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Verify that the distance between the flanges, where the valve will be connected, is equal to the length of the
valve body.
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All protection devices for transport and storage have to be removed before installation.
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The arrow on the valve body must be in the same direction of the liquid flow. Valves without on the arrow mark
can be installed with bidirectional piping.
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Valves shall be assembled to the pipeline in fully closed position.
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Use gaskets between the valve flanges and the counter flanges. The gasket should be suitable for operation
conditions or maximum pressure/temperature ratings.
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The flanges which the valve will be assembled should be in the same axis and the flange surfaces should be
parallel to each other.
Doc. No: FRM.65
Rev. No: 00 Rev. Date: 01.06.2015
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