Seawater is a very complex multi-component aqueous solution. The major elements in seawater are Na ions, K ions, Cl ions, SO4 ions, etc., most of which are above 1 mg/kg.
Among them, the chloride ion content is the highest, with an average concentration of up to 19000mg/kg. This is far beyond the chloride ion content requirement of stainless steel materials. When using 304 and 316 stainless steel pumps to cope with seawater conditions, stress corrosion, pitting corrosion, and intergranular corrosion are bound to occur.
Many users choose stainless steel water pumps to transport seawater or saturated salt water. During use, they also found that the stainless steel pumps were severely corroded, which affected the operation of the system.
FPS Resin Pump
medium:Sea water, hot spring water, chemical liquid
Medium: -5 °C~80 °C
flow: 3~600 m³/h
Lift: 4~65 m
Work Pressure: 10 bar
caliber: 40~300 mm
Motor poles: 4
Maximum suction performance: -5 m
DWT Resin Pump
medium:seawater
Medium:0~40 °C
flow: 1.8~36 m³/h
Lift: 2~20 m
Work Pressure: 10 bar
caliber: 40~65 mm
Motor poles: 2
Maximum suction performance: –
Resin Pump Introduction
The parts produced by RIM technology using the new thermosetting resin material PDCPD have excellent mechanical properties and are environmentally friendly, corrosion-resistant, and large-scale.
RIM (Reaction Injection Molding): mainly injects two low-molecular, low-viscosity liquids into the mold and mixes them at the same time; a chemical reaction occurs inside the mold to produce a polymer finished product.
Ebara’s unique technology enables a production process with lower temperature and lower viscosity than conventional RIM.
Resin Pump Advantages
- RIM molding can form shapes with the same complexity as metal castings;
- Easy to make large-thickness and large-volume finished products;
- Excellent impact resistance and wear resistance, not easy to break;
- Low water absorption, excellent dimensional stability;
- Excellent chemical tolerance and corrosion resistance.
- Pure hydrocarbons can be directly incinerated when discarded, and are environmentally friendly materials.
Excellent corrosion resistance
The flow-through parts are made of resin, which has excellent corrosion resistance to media that corrode stainless steel, such as acid and seawater.
Excellent impact resistance and wear resistance
The material is elastic and has good impact resistance. The surface and internal materials are consistent, and both have excellent wear resistance.
Low noise design
Using the characteristics of PENTAM and adopting a thickened design, the noise is low.
High strength and durability
It has three times the thickness of a metal pump and adopts a bottom support structure to withstand a large piping load.
High efficiency and low cavitation
The hydraulic parts are cast and can be freely formed like metal casting pumps, with excellent performance.
Simple waste disposal and environmental protection
The material is pure hydrocarbon, without glass fiber reinforcement, and can be incinerated.
Easy maintenance
The density is about 1/7 of metal and the weight is light. The back-pull structure is adopted, and the parts can be replaced without removing the pipeline.
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