NAFFCO NF-VLS Series Installation, Operation And Maintenance Manual
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NAFFCO NF-VLS Series Installation, Operation And Maintenance Manual

Vertical inline multistage pump
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Summary of Contents for NAFFCO NF-VLS Series

  • Page 2 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS 1. applications and Conditions Pumps of NF-VL & NF-VLS model are non-self priming vertical multistage centrifugal pumps. The features are high efficient, low noise, a little corrosive liquid resistance, compact structure, good appearance, small volume , light weight, easy to service, good seal performance etc.
  • Page 3 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS NF-VL (S) 1,2,3,4 - SS TYPE Fig. No. 01 Subject to change without prior notice 3 of 25 Ref. No. NF-VL(S)-IOM/2018/V.01...
  • Page 4 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS NF-VL (S) 1,2,3,4 - CI TYPE Fig. No. 02 Subject to change without prior notice 4 of 25 Ref. No. NF-VL(S)-IOM/2018/V.01...
  • Page 5 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS NF-VL (S) 8,12,16,20 - SS TYPE Fig. No. 03 Subject to change without prior notice 5 of 25 Ref. No. NF-VL(S)-IOM/2018/V.01...
  • Page 6 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS NF-VL (S) 8,12,16,20 - CI TYPE Fig. No. 04 Subject to change without prior notice 6 of 25 Ref. No. NF-VL(S)-IOM/2018/V.01...
  • Page 7 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS NF-VL (S) 2,42,65,85 - 120702 Fig. No. 05 Subject to change without prior notice 7 of 25 Ref. No. NF-VL(S)-IOM/2018/V.01...
  • Page 8 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS NF-VL (S) 120,150 - 081101 Fig. No. 06 Subject to change without prior notice 8 of 25 Ref. No. NF-VL(S)-IOM/2018/V.01...

  • Page 9: Installation And Connection

    VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS 3. Installation and Connection Handling When lifting the entire pump with motor, follow these instructions: • Pump with motor sizes 0.37 - 7.5kW: Lift the pump in the motor flange by means of straps or the like. •...

  • Page 10: Installation Sketch

    VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS Pump Intallation Pump Installation sketch is as follows Installation Sketch Fig. No. 08 Subject to change without prior notice 10 of 25 Ref. No. NF-VL(S)-IOM/2018/V.01...
  • Page 11 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS Installation Size Pump Installation Dimensions is as follows Subject to change without prior notice 11 of 25 Ref. No. NF-VL(S)-IOM/2018/V.01...
  • Page 12 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS The pump should be sited in a well ventilated and frost-free position. The distance between pump - motor and other objects should be atleast 150mm, in order to cool the motor by fan with enough air. •...
  • Page 13 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS Electrical Connection • The electrical connections shiould be carried out by an authorized electrician. • To make sure the motor is suitable for the powersupply, cables of the motor must be connected to power supply according to the Fig.
  • Page 14 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS 380 V (50 Hz/ 60 Hz) Power Input Cable Con- Input Cur- Cable Spec Circuit Thermal Pro- (kW) nection rent (A) (mn2) Breaker (A) tector (A) ⌂ ⌂ 13.2 ⌂ 18.0 ⌂...
  • Page 15 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS A. Before opening the terminal box, please shut off the power supply to prevent from power shock. B. Before opening the coupling guards, please stop pump firstly to prevent injuries. C. When installing the pump, please fix the foundation bolts vertically to prevent from any pump falls that may lead to injury D.

  • Page 16: Start-Up, Operation And Maintenance

    VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS 4. Start-up, operation and maintenance Caution : Read the label on the cylinder carefully before start-up. Do not start the pump until it has been filled with water or liquid fully. •...

  • Page 17: Assemble And Disassemble

    VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS Suggestion When pump is under run condition , flow should be controlled at the range of 0.5 - 1.3 times of rated flow. Pump which is install according to this installation manual will work effectively and require a little maintenance •...
  • Page 18 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS more stages pump, support diffuser should be inreased accordingly, the distance of each support diffuser should be even , and put on the support sleeve and bearing with support diffuser. • Put the inducer on the inlet &...
  • Page 19 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS NF-VL and NF-VLS 32,42,65,85 • Place the inlet & outlet chamber on the base plate, fit flanges on inlet & outlet chamber at two sides and fit the inducer. • Place the first impeller on the shaft, tighten the nuts and place the impeller on the neck ring base of inducer, then place on the diffuser, impeller, support diffuser, until the top diffuser, then fix all the diffuser with the straps.
  • Page 20 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS • Fit washer (PN58), shaft sleeve (PN16), impeller, fasten impeller nut (PN15), ensure the size is 14.3 as shown on figure 4. • Place the shaft parts on the inducer, fit support diffuser, impeller sleeve, impeller, fasten the impeller nut then fit the diffuser, impeller etc.
  • Page 21 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS Fault and Solution Chart Fault Cause Solution Remark e) Control circuit is defec- e) Check Control Circuit tive Motor does not run when started f) Motor is Defective f) Repair a) Fuses are Blown a) Replace Fuses b) Contacts of overload b) Check motor starter...
  • Page 22 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS Fault and Solution Chart Fault Cause Solution Remark a) Suction pipe is bloacked a) Check and clean suc- by impurities tion pipe b) Foot valve or Check if b) Check and repair foot valve is closed valve or check valve Pump runs but gives no...

  • Page 23: Importance Notice

    VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS 7. Importance Notice • Customer will not be advised if this manual is updated. • Pump will be guaranteed for one year under normal operation with the correct model. Wearing part is not in- cluded.
  • Page 24 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS NOTES Subject to change without prior notice 24 of 25 Ref. No. NF-VL(S)-IOM/2018/V.01...
  • Page 25 VERTICAL INLINE MULTISTAGE PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS NOTES Subject to change without prior notice 25 of 25 Ref. No. NF-VL(S)-IOM/2018/V.01...
  • Page 26 Project Name :............................Location :............................Commissioned By :............................Date of Commissioning :............................Signature of Commissioning Engineer :............................

This manual is also suitable for:

Nf-vl series

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