Kingda pump group
Rubber
Cover Plate Liner
The Rubber Cover Plate Liner in a slurry pump serves to protect the pump body from wear, particularly at the inlet and outlet areas.
This liner is typically located on the exterior of the pump casing and absorbs the impact and friction from the slurry, extending the pump’s lifespan and reducing maintenance costs and downtime caused by wear.
Rubber liners offer effective protection, improve efficiency, and are a cost-effective, practical solution.
Rubber
Cover Plate Liner
Overview
The Cover Plate Liner is typically made from wear-resistant materials such as rubber or high-chrome alloy. It is securely installed inside the pump casing and works together with other liner components, such as the frame liner and impeller, to form a complete wear-resistance system.
During pump operation, the slurry comes into direct contact with the liner, which absorbs the abrasion and impact forces from the slurry. As a result, the pump casing remains intact and protected.
When the Rubber Cover Plate Liner becomes worn after prolonged use, it can be replaced individually without needing to replace the entire pump casing, significantly reducing maintenance costs.
The Rubber Cover Plate Liner protects the pump casing and key components from slurry impact and wear, ensuring stable, long-term operation.
- Wear Resistance
- Impact Absorption
- Structural Protection
- Efficiency Maintenance
Kingda Spares & parts
Kingda Pump Group offers end-to-end spare parts manufacturing capabilities, covering all critical slurry pump components. Our production process begins with precise design to ensure that every part meets industry standards for dimensions, shape, and materials.
With advanced manufacturing techniques and rigorous quality control, we guarantee the durability and wear resistance of essential components like bearing assemblies, frame plates, impellers, liners, and throat bushes.
Kingda Slurry Pump
Rubber Cover Plate Liner Material
Excellent Wear Resistance
Rubber’s elasticity and toughness effectively resist wear from solid particles, making it ideal for fine particles and highly corrosive slurries.
Outstanding Corrosion Resistance
Rubber materials are highly resistant to various chemical agents, allowing the pump to operate reliably in acidic, alkaline, or other corrosive environments, protecting the pump casing from chemical damage.
Impact Absorption
The elasticity of rubber cushions the impact of high-velocity slurry, protecting the pump casing and other key components, and extending the pump's service life.
Cost-Effectiveness
Compared to metal liners, rubber liners are more affordable, easier to replace, and require lower maintenance costs, making them a practical long-term solution.
| Kingda Coad | Material | Description | Chemical Resistance |
|---|---|---|---|
| KJZ-01 | Natural Rubber | Suitable for ordinary chemical media with a weight concentration ≤ 65%, solid particle size generally ranging from 80 to 200 mesh, and a small percentage of particles up to 3mm. The pH range is from 2 to 14. |
Sulfuric Acid :≤20% at ≤65°C Phosphoric Acid : ≤60% at ≤65°C Nitric Acid : ≤1% at room temperature Hydrofluoric Acid : ≤5% at room temperature Sodium Hydroxide :≤20% at ≤65°C |
| KJZ-02 | |||
| KJZ-03 | |||
| KJ21 | Butyl Rubber | Suitable for solutions with higher temperatures and excellent resistance to water-based solutions; unaffected by strong acids and alkalis. However, concentrated oxidizing acids and nitric acid may cause material degradation, and it will swell in oxidizing hydrocarbon solutions. |
Sulfuric Acid :≤50% at ≤65°C Phosphoric Acid :≤85% at ≤85°C Hydrochloric Acid :≤20% at ≤65°C Nitric Acid :≤10% at ≤40°C Sodium Hydroxide :concentrated at ≤85°C |
| KJ22 | Hypalon Rubber | Resistant to both organic and inorganic chemicals, primarily used in acidic environments. It also resists vegetable oils and mineral oils, but is not recommended for use with chlorinated solvents. |
Sulfuric Acid :≤80% at ≤65°C Phosphoric Acid :≤85% at ≤95°C Hydrochloric Acid :≤37% at ≤50°C Nitric Acid :≤30% at room temperature Sodium Hydroxide :≤70% at ≤110°C |
| Insp Item | Unit | Test Conditions | Benchmark Value | Measured value |
|---|---|---|---|---|
| Hardness | Shore A |
140℃ x 10min Dumbbell cutter Dumbbell L-shaped Rip cutter right angle | 49±4 | 48 |
| Tensile Strength | Mpa | ≥20 | 27.4 | |
| Breaking Elongation | % | ≥500 | 837.5 | |
| 300% Stretching Strength | Mpa | ≥4 | 7.11 | |
| Tear Resistent | KN/m | 780 | ||
| Specific Gravity | g/cm³ | 1.09 | ||
| Mooney | moony | ML1+4@100℃ | 59.1 | |
| Scorch | m:s | t5@140℃ | 6‘47“ | |
| Abrasion Resistance | cm³/1.61km | 0.0736 |
Kingda Rubber Physical Properties Test Report
Quality Management
Our rigorous quality control system ensures excellence at every step—from selecting and analyzing raw materials to precision machining and performance testing of pump parts.
We adhere to the highest inspection standards to guarantee that each component arrives to our customers in perfect condition, earning their trust with consistent and reliable quality.
Slurry Pump Parts
OEM & ODM services
With over 70 years of experience, we are a leading manufacturer of slurry pumps, providing high-quality impellers, spare parts, and wear components to some of the world’s most renowned pump manufacturers. Our parts are 100% interchangeable with those of leading pump brands, ensuring seamless integration and perfect compatibility.
With a state-of-the-art materials lab, we enhance part durability through innovation, extending service life. Our comprehensive production covers model making, casting, heat treatment, machining, welding, rubber lining, assembly, and testing, ensuring top quality at every step.
Backed by professional engineers, we provide 24/7 online support for quick solutions, minimizing downtime and maximizing reliability. Our expertise and commitment to excellence place us at the forefront of the slurry pump industry, delivering exceptional solutions worldwide.
Application
Slurry pumps transport mud, sand, lime slurry, ash and other substances in the fields of mining, metallurgy, coal, electric power, chemical industry and environmental protection, and play an important role in various technological processes in many industries. Efficiently and reliably convey and process high-concentration, high-density, high-abrasive slurry.
Processes
Cement Production | Dredging Operations | Flue Gas Desulfurization | Backfilling Pumping | Concentrate Slurry Pumping | Cyclone Feed Pumping | Tailings Handling | Flotation Slurry | Pumping | Mill Discharge Pumping | Multistage Pumping | Process | Material Pumping | Concentrate Material Pumping | Sugar Cane Refining | Tunnel Construction
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