D Series Single Casing  Slurry Pump

Built on standard slurry pump design, the SiC ceramic slurry pump is a next-generation pumping solution. It fully utilizes silicon carbide ceramic’s outstanding properties — excellent wear resistance, corrosion resistance, impact resistance and high-temperature tolerance — combined with professional SiC ceramic technology to upgrade traditional slurry pumping performance.

This pump features a simple structure, strong part interchangeability, wide compatibility, high operating efficiency and low overall running costs.Under the same working conditions, the life of  ceramic pump is more than 4-6 times that of traditional high chromium alloy slurry pump.

It is widely used for mining, mineral processing, metallurgy, power generation, coal washing, chemical processing and sand washing industries. With stable and reliable field performance, SiC ceramic slurry pumps have won wide recognition and positive feedback from global customers.

What Is Silicon Carbide (SiC)?

Silicon carbide (SiC) is a proven wear-resistant material. It features high hardness and stable molecular structure, with outstanding resistance to corrosion and high temperature. It is widely used in mining, metallurgy, power, chemical and other industries.Most slurry pumps at home and abroad work with highly corrosive and abrasive media under harsh conditions. Thus, wetted parts need strong anti-corrosion and anti-wear performance. Silicon carbide ceramic — including silicon nitride bonded sintered SiC ceramic and resin-bonded SiC composite ceramic — is your top pick.

SiC ceramic is the most widely used non-metallic industrial ceramic with superb high-temperature resistance. Its excellent structural performance relies on refined microstructures, so high-quality SiC powder production is the core to make premium SiC ceramic parts.

Silicon carbide (chemical formula: SiC) is a covalent compound. Both carbon and silicon have four valence bonds, and silicon carries partial metallic properties. Their network & bulky molecular structure delivers remarkable mechanical strength. That’s why SiC boasts great high-temperature strength, wear resistance, corrosion resistance, high thermal conductivity and excellent insulation.

Why Choosse Silicon Carbide (SiC) Ceramic Material?

▲Superior Corrosion Resistance of Silicon Carbide

• Excellent chemical stability: Resists corrosion from nearly all inorganic acids, organic acids and alkalis, with great anti-oxidation performance.

• Extraordinary wear resistance: 3 to 5 times more wear-resistant than high-chromium wear-resistant steel.

• Outstanding corrosion tolerance: Compatible with most acids, alkalis and chemical agents, except hydrofluoric acid and hot concentrated alkali.

  ▲ Exceptional Wear Resistance of Silicon Carbide

Silicon carbide features a diamond-like tetrahedral crystal structure bonded mainly by covalent bonds. Its hardness ranks second only to diamond. 

• Extraordinary wear resistance: 3 to 5 times more wear-resistant than high-chromium wear-resistant steel.

▲Superior Impact Resistance of Silicon Carbide

• Great impact resistance: Withstands impact from large granular materials and steel balls.

• ▲High Temperature Resistance of Silicon Carbide

• Wide operating temperature range: Stable long-term service from -40℃ to 90℃, peak working temperature up to 110℃.

Features and Benefits

1. Equipped with industry-standard auxiliary impeller and packing seal, this pump ensures stable, leak-proof sealing, perfectly suited for mineral processing.

2. All flow parts adopt high-performance new ceramic materials. Boasting high hardness and great wear resistance, they last 3-5 times longer than metal parts, cutting replacement costs.

3. The entire outlet flow channel is lined with wear-resistant ceramic, effectively resisting medium erosion and prolonging pump service life.

4. Adopting an innovative split pump head structure, different from traditional metal pumps, it features a simple design for fast installation and easy maintenance.

5. Grease lubrication is applied to the bearing system, thoroughly solving the oil leakage issue of traditional thin-oil lubrication for cleaner, trouble-free operation.

6. Full model coverage meets diverse usage needs, with max flow of 5400m³/h and head of068m. It shares universal installation sizes and accessories with metal slurry pumps for direct replacement and quick upgrade.

7.By combining advanced materials science with proven slurry pump performance, the SIC ceramic slurry pump  help mines achieve operational efficiency and sustainability gains

Performance Parameters

50D-B40

———D: Single Casing
———50:suction diameter
———B: impeller vane code 
———40:discharge diameter

SiC Ceramic Slurry Pump Applications

●Mining: conveying concentrates, tailings, and slurries containing fine hard particles

●Metallurgy: conveying ultra-high temperature slag and slag slurries

●Chemical industry: conveying highly corrosive chemical liquids such as strong acids, strong alkalis, and oxides

●Environmental protection: industrial wastewater treatment, flue gas desulfurization

●Cement: conveying highly abrasive slurries such as mortar and lime slurry

DISSCUSS YOUR APPLICATION

Guidelines for Selecting Heavy-Duty Slurry Pumps

Proper selection and structural configuration of heavy-duty slurry pumps are key prerequisites for stable operation and extended service life. Scientific model selection and customized design can fully maximize pump operating efficiency and optimize overall production benefits. The following core factors should be fully evaluated when choosing a suitable slurry pump:

Pump Size

Pump size is defined by its outlet diameter, which serves as a core parameter for equipment matching. According to actual project flow demands and slurry physical characteristics, users must confirm the optimal pipe diameter for slurry transportation. This maintains a reasonable pipeline flow velocity, effectively avoiding excessive pipe wear, material deposition and pipeline blockage issues.

Flow Capacity

Flow capacity refers to the slurry delivery volume per unit time, which directly determines the overall conveying efficiency. It is necessary to accurately confirm the on-site required flow rate to ensure the pump fully matches actual working conditions. Insufficient flow capacity will restrict production progress, reduce operational efficiency and fail to meet the standard requirements of industrial and engineering projects.

Pump Head

Pump head refers to the effective energy obtained by the liquid per unit weight after passing through the pump. It covers the actual vertical lifting height of the slurry and the friction loss generated during pipeline transportation. When calculating the required head, comprehensive factors including pipe material, conveying distance and pipeline fittings such as elbows need to be considered. Selecting a pump with matched head parameters helps cut energy consumption and improve overall operating economy.

Motor Power

Matching motor power is critical to the pump’s working performance, energy-saving effect and operational stability. Adequate power support ensures the pump stably achieves the preset flow and head indicators. Insufficient power will lead to abnormal operation, frequent equipment overload and motor burnout, resulting in increased maintenance costs and reduced long-term operational reliability.

Solid Particle Size

Each slurry pump model is designed with a rated maximum passing particle size, applicable to specific solid-liquid mixing mediums. If the solid particles in the slurry exceed the pump’s design range, equipment blockage, impeller wear and structural damage are likely to occur. Therefore, particle size parameters of on-site slurry must be consistent with the pump’s technical specifications.

Material Selection Recommendation

For working conditions involving weak acid corrosive slurry, low delivery head and fine rounded solid particles, rubber-lined slurry pumps are the optimal choice. This type of pump features light overall weight, cost-effective pricing and excellent adaptability to such mild working environments. For complex working conditions with strong wear and wear + corrosion in metal ore dressing plants and non-metal dressing plants,SIC ceramic heavy duty slurry pump are especially suitable.and the life of SIC ceramic heavy duty slurry pump is more than 4-6 times that of traditional high chromium alloy slurry pump.

Shaft Seal Types

XAH series heavy-duty slurry pumps support three mainstream shaft sealing solutions: packing seal, expeller seal and mechanical seal. Users can select the most suitable sealing configuration based on on-site working conditions and personalized application requirements. The detailed structure and applicable specifications of each sealing type are displayed in the figure below.

Packing Seal

A packing seal works by filling elastic packing material into the pump’s stuffing box. As the packing gland compresses the material, it expands radially to fully seal the clearance between the shaft sleeve and stuffing box, achieving effective leakage prevention. This sealing structure allows a slight amount of dripping during operation and features excellent universal adaptability. Serving as the standard sealing configuration for Warman slurry pumps, it boasts mature technology, affordable costs and extremely convenient replacement and maintenance procedures. It is worth noting that packing seals require continuous shaft sealing water for normal operation, with the sealing water pressure maintained 0.035MPa  higher than the pump outlet pressure.

Expeller Seal

The expeller sealing structure prevents slurry leakage by utilizing the centrifugal pressure generated by the impeller-driven expeller during operation. This sealing method requires no shaft sealing water, avoiding dilution of the conveyed slurry, which makes it ideal for water-scarce working environments and applications that demand undiluted slurry media. This seal is only applicable when the pump inlet pressure is no more than 10% of the outlet pressure; it cannot work properly beyond this range. Fitted with an oil cup, the expeller ring needs regular grease replenishment to ensure stable performance. Notably, the packing structure undertakes the sealing function when the pump is shut down. In addition to standard metal configurations, rubber-made expeller rings and complete expeller assemblies are also available for diverse working conditions.

Mechanical Seal

Mechanical seals are specially designed for strict no-leakage working scenarios and fluid conveying requirements. Though they feature a relatively higher cost, they deliver outstanding durability and simple replacement procedures, while requiring standardized and rigorous daily operational maintenance. Three mainstream types are available for different working conditions. The external flushing mechanical seal requires clean external flushing water with a constant pressure of 0.1MPa. The internal flushing mechanical seal also adopts clean flushing water, with the water pressure set 0.1MPa higher than the pump chamber pressure to achieve effective internal flushing. The non-flushing mechanical seal operates stably without any flushing water supply, meeting the demands of diverse special working conditions.

Bearing Assembly

XAH series heavy-duty slurry pumps are equipped with robust cartridge-style bearing units that adopt grease lubrication for stable and long-term operation. Frames ranging from A, B, C, D, E, F to G are fitted with two opposed-mounted imperial single-row tapered roller bearings for balanced load bearing. In comparison, frame types including R, S, ST, T, TU and U feature a different configuration: one imperial double-row tapered roller bearing installed at the pump side, paired with two metric cylindrical roller bearings arranged at the drive side. The end cover adopts a labyrinth sealing structure with an integrated dust ring to block external dust and impurities. Precise axial clearance adjustment can be easily completed via the adjusting bolt installed between the pump frame and bearing .

Pump Frame

XAH heavy-duty slurry pumps feature an integral pump base designed to securely support the cartridge bearing and shaft set via clamping fasteners. Few penetrating bolts fasten the frame plate onto the main frame body. This compact, high-rigidity layout simplifies field disassembly and routine servicing. Every frame specification matches a rated maximum drive power plus the optimal flush water flow rate required for packing-type shaft seals.

Installation Types :

XAH series heavy-duty slurry pumps rely on matched drive motors to supply power for slurry conveying tasks, with multiple flexible transmission options for different installation layouts. Common drive forms consist of direct-coupled DCZ, horizontally side-mounted CRZ, top vertical CV and inverted top-mounted ZVZ to satisfy varied site layout demands.

Structure Description

Our ceramic slurry pumps are built for easy maintenance, high efficiency and long life. Here’s how:

single pump shell structure: the pump head part adopts modular design, which is mainly composed of flow parts (pump cover, impeller, pump body, rear protection plate), binding plate, sealing assembly, bracket assembly, etc. The joint plate, bracket and pump body are provided with a stop, and the pump body and the joint plate, and the joint plate and bracket are connected with high-strength bolts between them.

• All flow-passing parts (pump body, impeller, liners) are made of wear-resistant, corrosion-resistant silicon carbide ceramic, ensuring long service life.

• The axial adjustment structure lets you easily adjust the impeller gap, keeping the pump running at high efficiency at all times.

• Back-pull design allows you to remove the impeller, shaft and seal without disconnecting the suction and discharge pipes, making maintenance fast and simple.

• Large-diameter, short overhang pump shaft reduces deflection, protecting the seal and extending its life.

• Thin-oil lubricated bearings are housed in a removable bearing box with rubber seals to keep out dirt and water.

• A large tapered space between the impeller and pump cover prevents solids from entering the shaft seal, further extending seal life.

• Rigid shaft design with roller and thrust bearings handles heavy radial loads, keeping the drive system running smoothly and reliably.