You can try the SIMSITE polymer material invented by the American SIMS company, which has super corrosion resistance to seawater and acidic and alkaline media.
The following is the information about SIMSITE found on the Internet, you can refer to it:
1.Simsite? is the name of the patented material trademark owned by the American Sims? Pump? Valve? company< /p>
2.Simsite is a structural synthetic material.
3.Sims?Pump?and?Valve's unique graphite-based phenolic resin reinforced composite fiber Graphite?fiber?phenolic?resin?composite?material
4. Within the material The fibers are interwoven in two or three directions, and in order to obtain higher strength and elasticity, these reinforcing fibers are continuous.
5. As a heavy-duty structural synthetic material, its properties can be changed according to the actual strength needs of the parts to be processed
6. Most product lines use Sims to mix it themselves A phenolic epoxy resin mixed with a thermosetting resin matrix. This resin exhibits excellent mechanical properties and very good chemical resistance,
7. Special grades of structural composites can use polyimide resin and melamine resin.
8.Simsite is a continuously woven graphite fiber, glass fiber and synthetic fiber. The fibers are all continuous and three-dimensionally woven, suitable for high-strength applications such as impellers.
Key reasons for choosing Simsite impellers and wear rings
1. Performance?
The impeller hub, impeller cover and suction and pressure surfaces of the blades are precisely The machining results in a very smooth surface for optimal performance and efficiency. Ultra-low boundary layer friction in the flow channels is responsible for the high efficiency of Simsite impellers.
Simsite's slightly swollen properties in water have the following benefits: During operation, the width of the throttling gap between the impeller and the wear ring or pump casing becomes smaller, which results in - reduced gap losses - Another reason for the high efficiency of Simsite impellers.
2. Weight?
Simsite is lighter than metal materials: its weight is one-sixth of bronze
3. Service life of components?
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Simsite impeller and wear ring are about 4 times that of bronze
4. Resistance?
High resistance to sea water, slightly alkaline water, chemicals and cavitation wear is The special properties of Simsite.
Galvanic corrosion? Simsite has no conductivity, eliminating all damage consequences of galvanic corrosion.
5. Quality imbalance
Simsite impellers are all made by CNC machining centers, and the machining accuracy is much higher than traditional casting, so the symmetry of the impeller is very good, so the stability is also very superior. .
Simsite’s high corrosion resistance ensures that the impeller’s geometric structure is not affected during operation. Increasing mass imbalances in metal impellers that damage shaft seals and bearings do not occur with Simsite materials.
6. Bearing load and bearing service life?
The light weight Simsite impeller reduces the load on the bearing to bear the weight of the impeller, increasing the service life of the bearing.
7. What is the service life of the shaft seal?
A centrifugal pump equipped with a Simsite impeller has the characteristics of low noise and low vibration during operation. The light weight of the impeller allows the shaft to operate with low deflection, extending the service life of the shaft seal.
8. Noise and vibration?
High-precision machining, high manufacturing accuracy, extremely low residual mass imbalance and Simsite’s noise damping characteristics enable low noise levels and reduced noise levels during pump operation. Vibration sensitivity and its associated impairments.
9. No-lubrication operation
Based on the chemical composition of the structural composite material and its self-lubricating properties, the Simsite impeller and wear ring can withstand short-term no-lubrication operation without damage Danger.
10. Keep the pump working at the optimal efficiency point
Compared with metal impellers, the Simsite impeller's special corrosion resistance and wear resistance ensure that it runs reliably at the working point.
These material properties are particularly advantageous over, from a hydraulic point of view, poor arrangement of the pump suction piping resulting in long periods of operation of the pump in a semi-cavitation or full cavitation environment (which is unavoidable on board ships) without significant cavitation. Damage occurs.