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Tony

每天早上起床后我都要看一遍《福布斯》富翁排行榜,如果上面没有我的名字,我就去上班

 
 
 

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Maintenance Plan for Ball Float Valve at 6A00-T50  

2011-04-17 01:59:46|  分类: 默认分类 |  标签: |举报 |字号 订阅

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     1  Plan A: Weld the fallen ball float back into position.

1.1  Drain the water till the level is about one meter lower than overflow outlet. Close water inlet and open the top cover. Put ladder into water. Send a man suited up with safety harness to enter the tank through ladder to retrieve the fallen ball float.

1.2  Disconnect ball float valve including the connecting rod and remove from tank.

1.3  Connect ball float and rod, reassemble the ball and valve back into position (pay attention to direction of installation)

1.4  Remove ladder from tank, close the top cover. Maintenance complete.

2  Plan B: Replace existing ball float and ball float facility

2.1 Drain the water till the level is about one meter lower than the overflow outlet, close water inlet and open the top cover. Put ladder into water. Send a man suited with safety harness into the tank through ladder.

2.2 Disconnect the ball float valve and the elbow (DN15), put a pipe reducer (DN15 to DN20) onto the pipe line where the original ball float valve was installed on. Connect the DN20 end of the reducer to DN20 pipe line.

2.3 Prior to start the work, a spare ball float and ball float valve assembly need to be prepared for direct installation.

3 Estimated time needed

     3.1  It is estimated that plan A will require two hours to finish the maintenance, and plan B will require one hourand a half.

 

                                                                                                              Lei Hong

                                                                                                   Mechanical Engineer

                                                                                           Wengfu Arabia Company Ltd.

                                                                                                      Date: 16 April 2011

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