0086-15067829788

Symptom Possible cause Remedy

1. The pump does not produce water. a. The inlet and outlet valves are not opened, the inlet and outlet pipes are blocked, and the impeller flow passage is blocked. a. Check and remove obstructions.

b. The motor is running in the wrong direction and the motor is out of phase. b. Adjust the motor direction and return to the motor wiring.

c. The suction pipe leaks. c. Tighten the sealing surfaces to remove air.

d. The pump is not filled with liquid and there is air in the pump chamber. d. Open the top cover of the pump or open the exhaust valve to drain the air.

e. The imported water supply is insufficient, the suction stroke is too high, and the bottom valve leaks. e, stop inspection, adjustment (connected to the water pipe or with the use of suction strokes are prone to sub- phenomenon)

f, the pipeline resistance is too large. f. Reduce the curve of the pipeline and re-select the pump.

2, the pump flow is insufficient a, first check according to the reasons. a, first press I to exclude.

b. Pipes and impellers are partially blocked, scale deposits, and valve opening is insufficient. b. Remove obstructions and readjust the valve opening.

c, the voltage is low, the speed does not meet the requirements. c, voltage regulation.

d, impeller wear d, replace the impeller.

3, the power is too large a, exceed the rated flow use a, adjust the flow, close the small outlet valve.

b, the suction stroke is too high b, reduce the suction stroke

c, pump bearing wear c, replace the bearing

d, improper pump selection d, re-select pump

4, noise vibration a, the pipeline support is unstable a, stable pipeline

b, the liquid is mixed with gas b, increase the suction pressure, exhaust

c, generate cavitation c, reduce the degree of vacuum

d, bearing wear d, replace the bearing

e, motor overload heating operation e, adjustment by 5

5. Motor heating a, the flow is too large, overload operation a, close the small outlet valve

b, touch rub b, check and eliminate

c, motor bearing damage c, replace the bearing

d, the voltage is low d, voltage regulation

6, the water pump leaks a, mechanical seal wear a, replace

b, the pump body has sand holes or cracks b, welding repair or replacement

c, the sealing surface is not flat c, trimming

d, the installation bolts are loose d, fastening

Structure description

   The pump is a rear open type, and it is not necessary to remove the water absorption and discharge lines when the pump cover and the impeller are disassembled. Two ball bearings are mounted in the suspension and lubricated with machine oil or grease. The pump is driven directly by the motor via a flexible coupling. The vortex chamber, the foot, the inlet flange and the outlet flange are cast together.

It is used for sucking clean water and liquids whose physical and chemical properties are similar to those of water-free solid particles. It is widely used in industrial and agricultural and urban, drainage, fire water supply and so on. The IS type pump is designed according to the performance and size specified in the international standard IS02858. Its technical standards are close to the international standards and reach the international advanced level. It is one of the energy-saving pump products promoted in China.

  The pump has the advantages of simple structure, reliable performance, small volume, light weight, good anti-cavitation performance, low power consumption and convenient use and maintenance. IS type pump has wide versatility. There are 140 kinds of specifications in the whole series, but only four kinds of shafts are used: shafts of the same specification, bearings, shaft seals, impeller fasteners, etc. are interchangeable; the suspension of the whole series of pumps is only four. Kind.

  Pump speed is divided into 2900 and 1450 rev / min

  The performance is as follows: 2900 rev / min 1450 rev / min

  Maximum flow: 240 m 3 / h 400 m 3 / h

  Maximum total head: 125 meters 55 meters

  Maximum speed: 3500 rpm (the impeller diameter is reduced when used for 60-wave power supply)

  Maximum operating temperature: 80. C

  The suction line pressure is allowed to be 0.3 MPa, and the maximum operating pressure of the pump is 1.6 MPa.

Model meaning

    IS 100 - 80- 160 A

    A ——The same model impeller straight 160mm cutting

    160 —— indicates the impeller nominal diameter l60mm

    80 —— means the pump discharge diameter is 80mm

    100 —— indicates that the pump suction diameter is lOOmm

    IS ——Indicating that it meets the international standard single-stage single-suction clear water centrifugal pump