Instruments and Equipments

Working principle and design, construction, calibration, analysis, performance and application of instruments and equipments.

How to troubleshoot centrifugal pump myself




Suction tube too high or too small or suction too long, causing considerable friction loss - check with meter • Aspiration or turbine or the suction inlet fully connected • Wrong direction of rotation Air pocket in suction line • • Worn or stuffing box connected to a siphon, so that air leaks in the casing of the pump • Air leak in suction line. Not enough water supplied • coating and priming the suction pipe is not satisfied with water • The speed is too low • higher prevalence than expected - Check especially friction loss • Suction pipe too high or the suction is too small or too long causing excessive friction loss - check with gauge • Impeller or suction pipe opening, or partially connected to • Wrong direction of rotation • air pocket in suction line, perhaps due to high vertical curvature or concentric reducers suction line • Worn or stuffing box connected to a siphon, allowing an air leak in the pump • Air leak in suction line • Foot valve too small • Foot valve is not immersed deep enough • Mechanical failures - worn wear rings, impeller damaged casing leaks. Not enough pressure • a speed too low • Air to water • The wheel diameter too small • Mechanical failures - worn wear rings, impeller damaged, defective packing box • Wrong direction of rotation • The pressure is measured incorrectly point - to measure pressure at the top of the case of the pump. The pump runs for a while and then closes • Leak in the suction • Housing worn or attached gland seal water when air leaks into the pump Air pocket in suction line • • Not enough to lift the hot water or volatile liquids - check carefully that this is a common cause of problems with hot water, etc. • air or gas in a liquid • Suction lift too high. Pump takes too much power • speed of the motor is too high • Head lower than rating, pumps too much water • mechanical failure - tree bent, a rotating liaison unit, the packing too tight, the pump and the driving misalignment • Wrong direction of rotation. Pump leaks too gland • Packing worn or poorly lubricated • The package is not installed properly or not working properly • Packing type incorrect for the treated liquid • The tree marked. The pump is too noisy • Hydraulic Noise (cavitation) - Suction lift too high - check with manometer • Mechanical failure - the bent axle, rotating parts tie Loose or broken, worn bearings of the pump, and Guide unit of an angle.

Labels: CP troubleshooting
Older Posts Home
Subscribe to: Posts (Atom)

Posts

  • ▼  11 (8)
    • ▼  11 (5)
      • How to troubleshoot centrifugal pump myself
      • Coupling and Drive of a standard Centrifugal Pump
      • Centrifugal pump impeller
      • Hydraulic components of centrifugal pump
      • Everything about Centrifugal Pump
    • ►  9 (3)
  • ►  10 (4)
    • ►  9 (1)
    • ►  8 (3)

Categories

Centrifugal pump Coupling and drive CP impeller CP troubleshooting Heat sensor Power Generator T sensor
Powered by Blogger.