Valve inspection of the main contents are: 1. Check the valve material is the key. 2. Body and seal the appearance of inspection 3. Motorized valve opening, error measurement to witness the switch is sensitive. 4. Pneumatic valve has no leakage, there is no stuck. 5. Body, packing, bonnet and other places for leaks, packing tightness 6. Compression test must be sealed, flange surface leakage, but also consider the pressure difference between the API598 and GB. 7. Bolt is loose, especially the high temperature valve 8. Valve support position 9. If the insulation valve, the valve insulation is complete 10. Installation direction is correct 11. Regularly check the valve's well conditions to ensure that it is not buried, Do not seize. Observe the terrain changes at the gate, the cover should be increased or decreased in time, and should ensure that the cover is neither buried nor obstructed traffic safety of the road, the debris should be stacked on the well to urge the move, the damaged covers, Wells should be promptly replaced, the collapse of the well should be promptly re-puzzle or repair. 12. do a good job of road construction inspection. Hongfeng that with the accelerating pace of urban construction, urban infrastructure, new projects continue to increase reconstruction projects do a good job in the road construction of the valve inspection work to prevent the valve buried in the valve repair and replacement work simultaneously with the extreme Significance. 13. Manhole Cover Situation: The manhole cover is missing and not complete, resulting in the accident of passers-by. It is not uncommon in various cities. To prevent such accident, it is necessary to take the gate cover as the main point of inspection. 14. Valuable leaks through the inspection, found that there are some obvious failures of the valve. Such as leaking valve, inspection process can be easily found. A specific inspection of the content and implementation of a specific inspection by Party B to organize their own professional staff, Party B should be equipped with space, tools, vehicles and so on. 2 specific inspection should include the following: 2.1 Check the pipe and other components, fittings, flanges and valves of the seal situation, whether there is leakage; 2.2 Check the pipeline insulation, anti-corrosion layer is damaged, off, running cold intact 2.3 Check the pipeline position is in line with the relevant requirements; 2.4 Check the pipeline for any abnormal vibration; 2.5 Check whether the collision between the pipe friction, pipe sinking and abnormal deformation; 2.6 Check 2.7 Check the valve, flange, expansion joint; 2.8 Check the pipe logo is intact to meet the requirements; 2.9 Check the safety protection device; B online inspection of the contents and implementation of the unit 1 online Inspection, Party B according to the pipeline safety level and the corresponding technical parameters, operating requirements, Party A in the specific project, time and tasks, when conditions work in line with the gap between the closure, to seek certification authority recognized, suitable, qualified Third-party online testing. Party B and the third party should be the other specific contract. 2 During the term of the agreement, Party A shall provide Party B with details about the implementation time, requirements and items of the on-line pipeline inspection for the next year 90 days prior to the expiration of each calendar year, and determine the specific online inspection plan after consultation by both parties. Before the online inspection plan is confirmed, Party A shall prepare technical documents such as pipeline layout, pipeline process flow chart, single line drawing, previous online inspection, comprehensive inspection report and operating parameters related to inspection. The third party conducting on-line inspection shall, on the basis of understanding such information, inspect the operation records of pipelines, the records of on-off parking, the implementation of custody measures of pipeline hidden dangers, the construction records of pipeline reconstruction, inspection reports and records of pipeline failure treatment and check according to the actual Develop a test plan for the situation. Party B should play an organizing and coordinating role in the process of formulating the test plan. 3 online inspection should include the following: 3.1 to check the sealing of pipes and other components, whether there is a leak; 3.2 check the pipe insulation for damage, loss, running cold intact situation; coating is intact; 3.3 inspection pipeline No abnormal vibration; 3.4 Check the pipe position and deformation; 3.5 Check the pipe hanger; 3.6 Check the valve, flange, expansion joint; 3.7 Check the pipe is marked on the line to meet the requirements; 3.8 Check the safety protection device; 3.9 Resistance Measurement; 3.10 wall thickness measurement; 4 online test cycle and report: 4.1 online test cycle according to the relevant provisions of the state, at least one year as a cycle. One cycle at least one test; 4.2 online test time to determine; 4.3 online test conclusions report provides a visual record of the carrier. 5 third party to implement online inspection, Party B should: 5.1 to promote third parties to comply with the safety management practices of public galleries and other norms and standards; 5.2 coordinate with the public pipe rack on the operation of other users of the pipeline; 5.3 organization and supervision of third-party The content of the agreement to implement online testing, the problems found in which should be promptly notified to Party A; do a good job in the valve inspection work is to do the work of the valve operation and management of the premise. Patrol line should be set up, in addition to its main work of inspection leaks, construction supervision, but also to the valve inspection as its main content, through the valve index of the valve inspection inspection of its work.
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