Pumping

Installation of Pumps 

1. Ensure that the pumping  set, received is of the correct type, capacity, complete with Prime Mover,  valves (foot valve  and reflex valve), gauges, spare parts, tools, suction and delivery flanges, foundation bolts, manufacture's  instructions  book  and cataloger, as specified. 
2. Before convincing  the work of installation,  ensure that the layout has been approved. The layout  should be such as to provide the most direct  connection between  the suction and delivery flanges of the pumps  and the suction and delivery pipes,  with the minimum  number of  bends. Avoid sharp bends especially near  the pump,  where their  effect  is  greatest. 
3. See that concrete foundations are made as per maker's foundation  drawing. If none exists, prepare one your  self and have it approved.  Special care should be taken in grouting the proper  and correct  size of foundation  bolts. 
4. Ensure  that  the  foundation  has properly  set, before  the pump set is actually installed. 
5. See that the alignment is correct.  Although the coupling  may  be flexible, it allows only for very small errors. 
6. Care must be taken to support  both the suction  and delivery piping so that no stress is put on the pump either from weight or expansion. 
7. See that all joints in the suction piping are made absolutely air right.  This is particularly  important with centrifugal  pumps. 
8. See that the strainer and foot valve  are well submerged below  water  level  at all times. 
9. See that necessary  arrangements are made to drain the pipe in frosty  weather. 
10. When two or  more pumps are installed  together supplying into the same delivery main, each set  should have its own delivery sluice valve and reflux valve. 
11. When  pumps have flooded  suction,  ensure that an isolating sluice valve  is provided  on  suction side of each pump. 
12. Ensure  that the work of installation of deep well pumps is carried out strictly in  accordance  with manufacturer's  instructions  and catalogue. 
13. While installing deep well pumps  and pipe work in bore holes, great care is  to be taken to avoid dropping them in.
14. Where deep well turbine pumps are to be installed in tube  wells, it should be ensured that the tube wells are bored true, straight  and  vertical. 
15. Check that  the casing pipe.is of adequate diameter to provide proper clearance, so that the pump hangs free in plumb. 
16. Ensure that deep well pumps are placed at such a depth in the bore hole that at least the 1st stage  always remains  submerged at the lowest water  level. 
17. In case of an engine driven pumping sets see that  special  attention is paid to ventilation, cooling system and fixing of exhaust pipe  which must always be taken  outside the building sufficiently above Graceland level. 

Testing of Pumps 

Before  carrying out the testing check the following: 

1. The installation has  been properly completed  and  sufficient  water is available for testing. 
2. The alignment is correct and the foundation are properly tight. 
3. All the  valves,  gauges, and controls have been properly fixed, adjusted and are functioning satisfactorily. 
4. Glands are suitably packed and not leaking. 
5. Bearing shushes are properly lubricated. 
6. Power  supply is  available and connection properly  made. 
7. Sufficient quantity of POL is  available. 
8. Testing instruments speedometer,  suction and delivery gauges, water meter, volt and ammeters, meager thermometer,  feeler  gauges and spirit level arc avail able. 
9. See that  the testing is  carried out as specified and test results  recorded  on the proper testing  sheet and signed by the contractor/supplying firing and Engineer-in-Chargeable. 
10. Ensure that the defects  noticed during testing are rectified by the contractor. 
11. See that the plant is not taken into use till such time, the performance test is satisfactory and passed by the Inspector.