high head slurry pump sizing

14/12 Sand Dredge Pump China Manufacturer

14/12 Sand Dredge Pump Description

The 14/12 Sand Dredge Pump is an ultra-heavy-duty centrifugal slurry pump engineered for large-scale sand dredging, mining, and high-capacity slurry transport. The designation "14/12" refers to its 14-inch (355mm) suction inlet and 12-inch (300mm) discharge outlet, making it ideal for industrial, marine, and mega-infrastructure projects requiring massive material handling.

Designed for extreme abrasion resistance, this pump features high-chrome alloy (Cr30), rubber lining, or ceramic composites to withstand continuous operation with highly abrasive slurries. Its optimized hydraulic design ensures maximum efficiency, low maintenance, and long service life even in the harshest environments.

Technical Specifications

iTECH TM DOS Gravel Sand Pump

Gravel Sand Pump Specifications:

Size (discharge): 4" to 18"

Capacity: 36-4320m3/hr

Head: 5m-80 m

Handling solids: 0-260mm

Concentration: 0%-70%

Material: High chrome alloy, Cast iron, Stainless steel etc

DOS Sand Dredge Pump: High-Performance Dredging Solution

Introduction

A “DOS sand dredge pump” is a specialized centrifugal pump designed for extracting, transporting, and discharging sand, slurry, and other abrasive materials in dredging operations. These pumps are widely used in mining, river dredging, land reclamation, and construction projects due to their robust construction, high wear resistance, and efficient performance.

This article provides a detailed description of sand dredge pumps, including the sand dredge pump characteristics, features, applications, material composition (high-chrome alloy), hardness, dredging capabilities, ease of maintenance, high performance, long-distance transfer, and high-pressure operation.

DOS Sand dredge Pump Characteristics

Sand dredge pumps are engineered to handle highly abrasive mixtures with efficiency and durability. Key characteristics include:

- Centrifugal Design: Utilizes centrifugal force to move sand and slurry at high speeds.

- Heavy-Duty Construction: Built to withstand harsh dredging environments.

- High Wear Resistance: Made from high-chrome materials to combat abrasion.

- Large Flow Capacity: Capable of handling high volumes of sand and water mixtures.

- Robust Impeller & Casing: Designed to minimize wear and maximize efficiency.

- Corrosion Resistance: Suitable for both freshwater and saltwater applications.

Features of Sand Dredge Pumps

(1) High-Chrome Material Composition

The most critical feature of a sand dredge pump is its “high-chrome alloy construction”. The pump's impeller, casing, and wearing liners are typically made from Cr27, Cr30, or A05 high-chrome white iron, offering exceptional hardness and wear resistance.

- Hardness: Typically 58-65 HRC (Rockwell Hardness), ensuring long service life even under extreme abrasion.

-Impact Resistance: The high-chrome material can withstand the impact of large solid particles.

- Corrosion Resistance: Performs well in both saline and acidic environments.

(2) Superior Dredging Ability

- Handles “high-density slurries” (up to 60-70% solids concentration).

- Efficiently pumps “sand, gravel, silt, and other sediments”.

- Capable of dredging “deep underwater” (up to 30 meters or more, depending on pump power).

(3) Easy Maintenance

- Modular Design: Allows quick replacement of wear parts (impeller, liners, seals).

- Accessible Components: Easy disassembly for cleaning and servicing.

-Long Service Intervals: Reduced downtime due to high durability.

(4) High Performance & Efficiency

- High Flow Rates: Can move hundreds to thousands of cubic meters per hour.

- High Head Pressure: Capable of “long-distance slurry transfer” (up to several kilometers).

- Energy-Efficient Operation: Optimized hydraulic design reduces power consumption.

(5) Long-Distance Transfer & High Pressure

- Pipeline Dredging: Suitable for long-distance slurry transport (1km to 5km+).

- High-Pressure Capability: Some models can generate pressure up to 1.5 MPa for demanding applications.

Applications of Sand Dredge Pumps

Sand dredge pumps are used in various industries, including:

(1) River & Lake Dredging

- Dredging sand from river & lake.

- Removing sediment to restore water depth.

- Preventing flooding by improving water flow.

(2) Mining & Mineral Extraction

- Extracting sand, gold, iron ore, and other minerals.

- Transporting tailings and slurry in processing plants.

(3) Land Reclamation

- Pumping sand to create new land in coastal areas.

- Beach nourishment projects.

(4) Construction & Tunneling

- Dewatering foundation pits.

- Handling slurry in tunnel boring operations.

(5) Port & Harbor Maintenance

- Keeping shipping channels clear of sediment.

- Dock construction and maintenance.

Advantages Over Conventional Pumps

Sand dredge pumps are essential for heavy-duty dredging operations, offering unmatched durability, high performance, and low maintenance. Their high-chrome construction ensures longevity in abrasive environments, while their high-pressure and long-distance capabilities make them ideal for mining, construction, and marine projects.

Whether for river dredging, mining, or land reclamation, a high-quality sand dredge pump provides reliable, efficient, and cost-effective slurry transportation. Investing in a wear-resistant, high-performance dredge pump ensures maximum productivity and minimal downtime in demanding applications.