After the valve is transported into the warehouse, the custodian should go through the storage procedures in time, which is conducive to the inspection and storage of the valve. The custodian should carefully check the type and specifications of the valve, check the appearance quality of the valve, and assist the inspector in the strength test and tightness test of the valve before storage. Valves that meet the acceptance criteria can go through the storage procedures; those that are unqualified should also be properly kept for disposal by the relevant departments.
For the valves in the warehouse, carefully wipe and clean the water, dust and dirt during the transportation of the valve; apply a layer of anti-rust agent or paste a layer on the processing surface, valve stem, and sealing surface that is prone to rust. Protect it with rust-proof paper; seal the valve inlet and outlet with plastic cover or wax paper to prevent dirt from entering.
Inventory valves should be consistent with their accounts, classified into categories, neatly placed, clearly labeled, and easily recognizable. Small valves should be arranged on the shelf in the order of model specifications and sizes; large valves can be arranged on the warehouse floor and placed in blocks according to model specifications. Valves should be placed upright or obliquely. Do not touch the flange sealing surface to the ground, let alone stack them together. For extra-large valves and valves that cannot be stored temporarily, they should also be placed upright in a dry and ventilated outdoor place according to their category and size; the sealing surface of the valve should be protected with oil and the passage should be sealed; for the stuffing box without packing, in order to prevent rain When entering the valve, seal the stuffing box opening with grease such as butter, and cover it with linoleum or raincloth. It is best to set up a temporary storage shed to protect it.
In order to keep the valves in good condition, in addition to a dry, ventilated, clean and dust-free warehouse, there should also be an advanced and scientific management system; all the valves in storage should be maintained and inspected regularly, generally from the day they leave the factory. After 18 months, the pressure test should be re-inspected.
For valves that have not been used for a long time, if asbestos packing is used, the asbestos packing should be taken out of the stuffing box to avoid electrochemical corrosion and damage to the valve stem. For valves without packing, the manufacturer is generally equipped with spare packing, and the custodian should take care of it properly.
Valve parts that are damaged or lost during transportation, such as handwheels, handles, rulers, etc., should be provided in time and must not be missing.
Anti-rust agents and lubricants that exceed the prescribed period of use should be replaced or added regularly according to regulations.
