What Are the Daily Management of carbon steel valves?

The cast steel valve is a control device of the fluid pipeline. Its basic function is to switch on or off the flow of the medium in the pipeline, change the direction of the medium flow, adjust the pressure and flow of the medium, and set various carbon steel valves in the system. The carbon steel valve is also an important guarantee for the normal operation of the pipe network and equipment.

Daily carbon steel valve management

Accidents due to poor manufacturing quality, poor management, and mishandling are common. Some major vicious accidents in the world are caused by carbon steel valve accidents. Therefore, it is imperative to strengthen the management of the carbon steel valve.

1. Management of technical data

Carbon steel valve technical information mainly includes national standards and related standards, carbon steel valve factory instructions, quality certificates, carbon steel valve installation and construction drawings, carbon steel valve maintenance, maintenance records, carbon steel valve daily management cards and carbon steel valve change records. Complete and complete carbon steel valve technical information can play a more effective role at critical moments, and be aware of in daily repair and maintenance, and replace aging carbon steel valves in time.

2. Quality management

Quality management includes carbon steel valve quality assurance system, comprehensive quality management, pressure test and acceptance system, quality control point, personal responsibility system and transfer records.

3. Management of carbon steel valve maintenance

Maintenance management includes the items, content, cycle, performance parameters, acceptance standards, maintenance plans, completion status, and maintenance records of repairs and maintenance.

4. Management of use files

It includes the carbon steel valve's model specifications, working pressure, working temperature, medium and flow direction, factory number, manufacturer and the name of the equipment's pipeline name, overhaul records and carbon steel valve replacement records.

5. carbon steel valve well chamber design and management

The carbon steel valves installed in the buried pipeline network must be built in a well chamber, so that the carbon steel valves can be conveniently maintained and managed. The diameter of the carbon steel valve well must be strictly in accordance with the specified size, otherwise it will seriously affect the daily carbon steel valve operation. carbon steel valve wells should be located on roadsides or green belts as much as possible to facilitate ordinary maintenance and management. The size of the manhole cover must be uniform. In strict accordance with the requirements of national regulations, a large or small manhole cover will induce a safety accident. This is a problem that carbon steel valve managers should pay attention to. The determination of the size of the clear space in the carbon steel valve well shall facilitate the replacement of parts on the carbon steel valve by the carbon steel valve maintenance personnel. Consideration shall be given to the requirements of disassembly, assembly and replacement operations without damaging the structure of the well wall.

The management of the carbon steel valve well includes: the well cover is intact and the road surface is intact; the position of the carbon steel valve is accurate; the well is free from debris and sewage; the carbon steel valve well is easy to form a closed space and easy to form hypoxia, therefore, maintenance personnel should ventilate before going down; carbon steel valve wells should be inspected regularly to deal with the problems of burial in time, and problems such as loss and damage of manhole covers should be dealt with in a timely manner.

6. carbon steel valve failure prevention management

(1) Strengthen the preliminary management and establish a complete file of carbon steel valve design, material selection, installation, maintenance, repair and replacement. (2) Before the carbon steel valve enters the pipe network, the strength and airtightness of the carbon steel valve must be tested to reduce the possibility of unqualified carbon steel valves entering the pipe network. The material of the rubber seal ring has a great influence on the service life of the carbon steel valve. It is required that all the seal rings are made of nitrile rubber or EPDM rubber, and resolutely put an end to recycled rubber. (3) Switching operation should control torque. Operate with a torque wrench to control the torque quantitatively. Prevent artificial damage to the carbon steel valve due to improper operation. (4) Improve material and anti-corrosion requirements.

Carbon steel valve maintenance mainly includes three aspects: carbon steel valve cleaning, carbon steel valve lubrication, and carbon steel valve maintenance during operation.The carbon steel valves in operation should be complete and intact. The bolts on the flange and the bracket are indispensable, and the threads should be intact and no loosening is allowed. The tightening nut on the handwheel should be tightened in time if looseness is found, so as not to wear the connection or lose the handwheel and nameplate. If the hand wheel is lost, it is not allowed to replace it with a spanner, and it should be equipped in time. Packing glands must not be skewed or have no preloaded clearance. The scale on the carbon steel valve should be kept complete, accurate and clear. carbon steel valve seals, caps, pneumatic accessories, etc. should be complete. If it is equipped with electric or pneumatic drive device, it should be maintained and maintained strictly in accordance with the corresponding operation manual.

The daily management and maintenance of the carbon steel valve can help us better extend the service life of the carbon steel valve.