Before installation of Industrial Valves, pressure strength test should be done. Test each batch ( Same specification, same brand, same model) Quantity spot-check 10% and not less than 1, if there is any leakage, crack is not qualified to spot-check 20%, there are still unqualified should be individually test or make full refund processing. For installation on ZhuGanGuan closed-circuit valves, cut off the role should be individually do strength and leak test. Strength and leak test pressure shall comply with the design requirements and the factory regulations. After test the Industrial Valves side xu installation in this project. installation should guarantee the position and direction of import and export right, connection is firm, compact, flexible Industrial Valves opens, toward the reasonable. After the installation, should ensure that the valve cleaning, leak paint brush should fill full.
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