How to maintain the valve daily maintenance


Time of publication:

2023-11-06

1. The valve shall be stored in a dry and ventilated room, and both ends of the passage shall be blocked. 2. Valves stored for a long time should be checked regularly to remove dirt and apply anti-rust oil on the processing surface. 3. After installation, regular inspection should be carried out. The main inspection items are: (1) the sealing surface wear. (2) the valve stem and stem nut trapezoidal thread wear. (3) Whether the packing is outdated and invalid, if damaged, it should be replaced in time. (4) After the valve is overhauled and assembled, the sealing performance test shall be carried out. (I) storage and maintenance The purpose of storage and maintenance is to prevent the valve from being damaged or reduced in quality during storage. In fact, improper storage is one of the important reasons for valve damage. Valves should be kept in good order. Small valves should be placed on shelves. Large valves can be arranged neatly on the warehouse floor. They should not be stacked randomly. Flange connection surfaces should not contact the ground. This is not only for the sake of beauty, but mainly to protect the valve from damage. Due to improper storage and handling, the handwheel is broken, the valve stem is crooked, the fixed nut of the handwheel and the valve stem is loose and lost, etc. These unnecessary losses should be avoided. For valves that are not used temporarily in the short term, asbestos packing should be taken out to avoid electrochemical corrosion and damage to the valve stem. Just into the library of the valve, to check, such as in the transport process into the rain or dirt, to wipe clean, to be stored. The inlet and outlet of the valve should be sealed with wax paper or plastic sheet to prevent dirt from entering. The valve processing surface that can rust in the atmosphere should be coated with anti-rust oil to protect it. Valves placed outdoors must be covered with rain-proof and dust-proof items such as linoleum or tarpaulin. Store the valve warehouse to keep clean and dry. (II) use and maintenance The purpose of use and maintenance is to extend the life of the valve and to ensure reliable opening and closing. Stem thread, often with the stem nut friction, to be coated with a little yellow dry oil, molybdenum disulfide or graphite powder, lubricating effect. Do not often open and close the valve, but also regularly turn the hand wheel, the stem thread to add lubricant to prevent bite. For outdoor valves, the valve stem shall be provided with a protective sleeve to prevent rain, snow, dust and rust. If the valve is mechanical to be moved, add lubricating oil to the gearbox on time.

How to maintain the valve daily maintenance

1. The valve shall be stored in a dry and ventilated room, and both ends of the passage shall be blocked.
2. Valves stored for a long time should be checked regularly to remove dirt and apply anti-rust oil on the processing surface.
3. After installation, regular inspection should be carried out. The main inspection items are:
(1) the sealing surface wear.
(2) the valve stem and stem nut trapezoidal thread wear.
(3) Whether the packing is outdated and invalid, if damaged, it should be replaced in time.
(4) After the valve is overhauled and assembled, the sealing performance test shall be carried out.

 

(I) storage and maintenance
The purpose of storage and maintenance is to prevent the valve from being damaged or reduced in quality during storage. In fact, improper storage is one of the important reasons for valve damage. Valves should be kept in good order. Small valves should be placed on shelves. Large valves can be arranged neatly on the warehouse floor. They should not be stacked randomly. Flange connection surfaces should not contact the ground. This is not only for the sake of beauty, but mainly to protect the valve from damage. Due to improper storage and handling, the handwheel is broken, the valve stem is crooked, the fixed nut of the handwheel and the valve stem is loose and lost, etc. These unnecessary losses should be avoided. For valves that are not used temporarily in the short term, asbestos packing should be taken out to avoid electrochemical corrosion and damage to the valve stem. Just into the library of the valve, to check, such as in the transport process into the rain or dirt, to wipe clean, to be stored. The inlet and outlet of the valve should be sealed with wax paper or plastic sheet to prevent dirt from entering. The valve processing surface that can rust in the atmosphere should be coated with anti-rust oil to protect it. Valves placed outdoors must be covered with rain-proof and dust-proof items such as linoleum or tarpaulin. Store the valve warehouse to keep clean and dry.

 

(II) use and maintenance
The purpose of use and maintenance is to extend the life of the valve and to ensure reliable opening and closing. Stem thread, often with the stem nut friction, to be coated with a little yellow dry oil, molybdenum disulfide or graphite powder, lubricating effect. Do not often open and close the valve, but also regularly turn the hand wheel, the stem thread to add lubricant to prevent bite. For outdoor valves, the valve stem shall be provided with a protective sleeve to prevent rain, snow, dust and rust. If the valve is mechanical to be moved, add lubricating oil to the gearbox on time.

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