I. Material Introduction
Polyurethane is a polymer with repeating urethane linkages in its molecular structure. It is gradually polymerized from isocyanate monomers and compounds containing active hydrogen. Due to the presence of a large number of polar bonds in its molecular structure and stable hydrogen bonds between molecules, it has advantages such as good physical and mechanical properties and wear resistance.
II. Material Advantages
Wide adjustable performance range: Many physical and mechanical property indicators can be varied within a certain range by choosing different raw materials and adjusting the formulation, thus meeting users' different requirements for product performance.
Good wear resistance: Especially under working conditions where lubricating media such as water and oil are present, its wear resistance is often several to dozens of times that of ordinary rubber materials.
Processability: Polyurethane elastomer products can be machined, such as turning, milling, and drilling, within a certain hardness range.
Resistance to oil, ozone, aging, radiation, and low temperature: It has good resistance to these factors.
III. Comparison with High - Chrome Cast Iron and Rubber
Comparison with High - Chrome Cast Iron |
Comparison with Rubber |
Good wear resistance |
Good wear resistance |
Light weight |
Good tear resistance |
Elastic, good resilience |
Good resilience |
Good impact resistance |
Can be dyed |
Good corrosion resistance |
Machinable |
Good vibration resistance |
Wide adjustable performance range |
IV. Comparison Results
Comparison with High - Chrome Cast Iron:The wear resistance of polyurethane is 5.3 times that of high - chrome cast iron. When used in slurry pumps, its service life is 6 - 10 times that of high - chrome cast iron; when used in slag slurry pumps, its service life is more than 3 times that of high - chrome cast iron.
Due to the use of polyurethane material, the weight of the impeller is greatly reduced, and the flow - through surface of the flow - through parts is smooth, reducing the power consumption during rotation. Therefore, it can save about 20% of electricity and increase the pump efficiency by about 5% - 10%. At the same time, the reduction of the rotor weight also extends the service life of the bearing components, reduces the failure rate of the pump operation, reduces the maintenance cost, and decreases the downtime loss caused by maintenance.
Polyurethane has good vibration - resistant and vibration - absorbing properties, which can reduce the vibration and noise of the pump to a certain extent.
Comparison with Rubber:
The hardness range is wide, from Shore A hardness 20 to over 95. Polyurethane still has good elasticity and elongation at high hardness, while rubber needs to add a large amount of fillers at the cost of reducing elasticity and performance.
The tear strength of polyurethane is very high, about more than 2 times that of natural rubber.
The wear resistance is about 3 - 5 times that of natural rubber.
The flow - through parts of polyurethane can be machined within a certain hardness range.
Polyurethane has dyeability and can be made into products of various colors.
The application range of polyurethane elastomers in the field of slag slurry pump transportation is gradually expanding. Under most working conditions, its service life is several times that of high - manganese cast iron, and it can replace traditional high - manganese cast iron and rubber materials.
company profile
Our company has senior engineers and classic technicians. It also has professional marketing talents who know foreign trade proficiently and have vast experience and full of pioneer and creative spirit. Our company will apply to the mind "People-oriented , Business integrity" and satisfy the customer requirement promptly and efficiently; Besides it has scientific management system and strenuous corporate culture. As yet, the customer of company takes up more than 50 states and areas. It has already formed strong marketing network, well-deserved service system and firm trading association.

Packaging & Shipping
Our services
1.Any inquires will be replied within 8 working hours.
2.Professional centrifugal pump manufacturer, welcome to visit our website (on-line store) and factory.
3.Customized design is available, OEM and ODM are welcomed.
4.High quality, reasonable & competitive price.
5.Fast lead time, 5-25days for bulk pump production
6.Payment: we usual accept payment by T/T, L/C and western union.
7.We have strong cooperation with forwarder, you also can chose your own shipping forwarder.
8.After-sale service: all centrifugal pumps will have been strictly quality checked in house before packing. All centrifugal pumps will be well packed as request before shipping.