1、 Overview: The FS type engineering plastic centrifugal pump series products all use mechanical seals and introduce international advanced processes and technical formulas. They all use modified ABS (engineering plastic) as the material of the pump. Among plastic pump products in the same series, it fully demonstrates its advanced structure, light weight, small volume, and long service life. It is widely used in chemical, food, pharmaceutical, electroplating, papermaking, environmental protection, water treatment and other departments to transport corrosive liquids such as acid, alkali, salt, etc
1、 Overview
The FS type engineering plastic centrifugal pump series products all adopt mechanical seals and introduce international advanced processes and technical formulas. All use modified ABS (engineering plastic) as the material of the pump. Among the plastic pump products in the same series, it fully demonstrates its advanced structure, light weight, small volume, long service life and other characteristics. It is widely used in chemical, food, pharmaceutical, electroplating, papermaking, environmental protection, water treatment and other departments to transport corrosive liquids such as acid, alkali, salt, etc. Among them, the 104 type adopts 220V voltage and can be used for household selection.
2、 Structural diagram

1. Pump casing 2, impeller shaft assembly 3, mechanical seal 4, pump cover 5, motor
3、 Model Description

4、 Pump malfunction forms and troubleshooting methods
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failure mode
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cause
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Troubleshooting
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The pump cannot produce liquid
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Pump reversal
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Leakage in the inlet pipeline
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There is too little liquid stored in the pump chamber
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The suction distance is too high
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Bottom valve leakage
- Impeller obstructed and unable to rotate
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Change the motor wiring
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Eliminate air leakage
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Increase the storage capacity
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Lower the installation position of the pump
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Clean the bottom valve
- Clean the pump casing and impeller
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Insufficient traffic
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The suction pipe diameter is too small
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Impeller channel blockage
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Head too high
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There is air leakage in the suction pipeline
- Damaged impeller
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Replace the liquid inlet
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Clean the impeller
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Turn up the outlet valve
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Eliminate air leakage
- Replace the impeller
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Low head
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Too much traffic
- The speed is too low
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Turn down the outlet valve
- Restore rated speed
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Low noise level
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There are debris inside the pump
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Friction between rotating parts and fixed parts
- Severe wear of the shaft
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Check and clean
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GAP
- Replace the pump shaft
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Leakage of liquid
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Loose fixing screws of pump casing
- Severe wear of mechanical seal
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tighten the screws
- Replace the mechanical seal
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