Maintenance of the valve, can be divided into two cases; one is kept maintained, the other one is used to maintain.

1.Custody maintenance

Keeping maintenance purposes , is to keep the valve in the custody of damage or loss of quality . In fact, improper storage of the valve

Door damaged one important reason .

Valve custody, should be well-organized, small valve on the shelves , large valves can be neatly arranged on the ground in the warehouse , you can not huddle chaotic pile , do not let the flange face contact with the ground . This is not only for aesthetics , mainly to protect the valve will not break something . Because improper storage and handling , hand wheel broken , crooked stem touch the hand wheel with the valve stem retaining nut loose lost , etc., these unnecessary losses should be avoided.

Not to be used for short-term valve , remove the asbestos packing to avoid electrochemical corrosion, damage to the valve stem .

Entered the library of the valve to be checked , such as during transport or dirt into the water , to wipe a clean , which shall be stored .

Export valves use waxed paper or plastic film sealed to prevent dirt inside . For energy in the atmosphere rusty valve machining surface to be oiled , to protect them.

Placed outside of the valve, must be covered linoleum or sheets and the like rain, dust items. Warehouse storage valve to keep clean and dry.

2.Use and maintenance

Use and maintenance of the aim to extend valve life and ensure reliable opening and closing. Stem threads, often with stem nut friction point to be painted yellow grease, molybdenum disulfide or graphite, a lubricant.

Use and maintenance of the aim to extend valve life and ensure reliable opening and closing.

Stem threads, often with stem nut friction point to be painted yellow grease, molybdenum disulfide or graphite, a lubricant.

Not often open and close the valve, but also regularly turn the handwheel on the stem threads lubricant to prevent biting.

Outdoor valves, plus protective cover to the valve stem to rain, snow, dust, dirt rust. Department of Mechanical pending action such as valves, be on time for gearbox lubrication. To keep the valve clean.

Always check valves and other components to maintain integrity. If handwheel retaining nut off, to filled and can not improvise using, otherwise it will grind Park Quartet upper stem, gradually lost with the reliability, can not even start.

Do not rely on the valve support other heavy objects, do not stand on the valve.

Stem, especially the threaded portion, should always wipe the dust has been soiled lubricants to be replaced with a new, because the dust contains hard debris, easy to wear the threads and the stem surface, affecting life.

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