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Fire pump anti-corrosion test process
Fire pump factory should be carried out before the flow surface corrosion test, after the test should not have a fire pump performance defects. The specific process is as follows: 1) Before the test with warm water on the flow surface of the fire pump carefully cleaned, should not leave greasy, dirt, cleaning should not use abrasive or solvent. 2) The test solution is prepared by adding distilled water and sodium chloride at a concentration of 10 kg / m3 ± 1 kg / m3. The pump is filled with the solution in a temperature environment of 35 ° C and 2 ° C. After 8 hours, Placed 16h, according to this repeat five cycles. 3) After the test, the solution should be drained pump, over-flow surface with warm water, carefully check the corrosion. 4) The pump casing made of cast iron, cast aluminum, cast copper, other over-current components made of stainless steel, bronze or aluminum alloy and other highly corrosion-resistant materials pump, the above test may not be carried out.