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   Electrical installation All the coils are for continuous use - permanent or high frequency operation. Check that the coil supplied with the valve has the correct tension and current required. If not, replace it with the adequate coil without changing the valve. The allowed tension variation that does not affect the performance of the valve is -15% to + 10% of the nominal tension for AC and -1 0% to +10% for DC. Mechanical installation Verify that the working conditions are within the range of differential pressure and temperature indicated on the nameplate of the valve. Place a strainer immediately upstream from the valve with the adequate capacity and a mesh smaller than 100 μ. The most favorable mounting position is on a horizontal pipeline with the coil upright. Pipelines upstream from the valve must be carefully and exhaustively cleaned even before the strainer, by means of purges with compressed air or any other system that guarantees the disposal of solid elements as well as welding bits, mud, dirt, etc.., especially with new pipelines. Follow the arrow that indicates the flow direction in the valve’s body. The input pressure must always be equal or greater than the output pressure.
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