Model Implication

Flange Dimension

TYPE	Intake Flange Dimension				Discharge Flange Dimension
	Do	D1	D2	N-D3	d0	d1	d2	N-d3
DHE38X25-B	152	38	114	4-Φ16	165	25	127	4-Φ16
DHE50X38-B	184	51	146	4-Φ19	165	38	127	4-Φ19
DHE75X50-C	216	76	178	4-Φ19	203	51	146	4-Φ19
DHE100X75-C	279	102	235	4-Φ22	229	76	191	4-Φ22
DHE150X100-D	337	152	292	4-Φ22	279	102	235	4-Φ22
DHE200X150-E	406	203	356	4-Φ22	368	152	321	8-Φ22
DHE250X200-F	502	254	445	8-Φ29	432	203	375	8-Φ29
DHE300X250-G	527	305	470	12-Φ25	527	254	470	12-Φ25
DHE350X300-ST	585	356	521	12-Φ25	552	305	495	12-Φ25
DHE400X350-TU	705	406	641	12-Φ35	673	356	610	12-Φ29
DHE500X450-TU	900	508	800	12-Φ42	900	460	800	12-Φ42

 

Product Features

1. The DHE Slurry Pump is designed using advanced CFD and CAE simulation technologies to achieve exceptional efficiency, superior suction performance, extended service life, and outstanding cavitation resistance. It is Fully compatible with major international brands, it ensures easy integration and replacement of wear parts.
2. Featuring a stronger single-casing construction, all wetted parts are made of highly wear-resistant metals and elastomers. 
3. The pump offers multiple bearing assembly configurations, diverse sealing options, and supports both belt drive and direct drive connection.
4. Rotation is clockwise from the drive end, and the discharge outlet can be positioned in any of eight adjustable angles for flexible installation adaptability.

 

High-Performance Design

1. Efficient hydraulic design ensures optimal power consumption.
2. Optimization of the product series guarantees operation close to the best efficiency point.
3. Advanced fluid dynamics software enhances the pump's hydraulic efficiency.
4. 3D computer-aided design technologies are employed to develop hydraulic and mechanical components.

 

Longer Service Life
   
1. Wear parts are manufactured using top-quality materials such as high-chromium alloy, rubber, and ceramics.
2. Extra-thick section (type), a stronger design is adopted for areas with severe wear.
3. Top-quality wear-resistant synthetic rubber developed by Delin
4. Both cemented carbide and synthetic rubber components are interchangeable, enabling optimal solutions to be provided for each individual application. Special materials can be selected upon request.
5. Special materials can be selected upon request.

Application Scenarios

Mining and Mineral Processing, Highly Abrasive Slurries, SAG/Ball Mill Discharge Recirculation, Cyclone Feed, Mine Waste and Tailings Handling, Industrial Processing, Mill Discharge, Coal and Power Plant Fly Ash, Sand and Gravel Production, Abrasive Slurries in Mining, Internal Slurry Transfer Pumps, Pulp and Paper, Lime Slurry, Alumina, Fertilizer Industry, Acid Neutralization. Shale oil extraction

Usage Characteristics

1. Resistant to Highly Abrasive and High-Concentration Media:As a heavy-duty slurry pump, it features thick wear-resistant components and a heavy-duty support bracket. This construction enables it to handle highly abrasive slurries as well as high-concentration slurry applications.
2. Double Casing Structural Design: The pump utilizes a dual-casing construction, where both the pump casing and cover are equipped with replaceable wear-resistant liners. These liners, including those for the impeller, casing, and cover & frame plate liner insert , can be utilized until fully worn through, significantly extending equipment maintenance cycles and reducing overall replacement costs.
3. Various Wetted Parts Material Options: The wetted parts can be made of high-chrome materials or rubber materials, both offering excellent wear resistance. This versatility makes them suitable for pumping slurries with large, extremely hard particles as well as fine, corrosive particles with low hardness. The interchangeability between different material components provides flexible configuration options, while requiring lower demands on the installation foundation.
4. Adjustable Discharge Orientation: The pump features an axial inlet and radial discharge outlet. Users can adjust the discharge direction in 45° interval around the full circumference, allowing rotation to 8 distinct positions for flexible pipeline arrangement.
5. Versatile Drive Options: The pump offers multiple drive configurations, including V-belt drives, flexible coupling drives, gear reducer drives, and hydraulic coupling drives. Common configurations include DC-type direct drives, CV-type vertical belt drives, ZV-type top/bottom belt drives, and CR or CL type parallel belt drives, providing adaptable solutions for various operating conditions and power transmission requirements.

Structural Design

1.Pump Cover     2.Inlet Liner      3.Volute Liner       4.Impeller     5. Frame Plate Liner Insert      6.Pump Casing      7.Bearing Assembly       8.Base

Bearing Assembly

A variety of bracket types can be freely selected based on on-site conditions, including grease-lubricated bearing assemblies, oil-lubricated bearing assemblies, and external oil-lubricated bearing assemblies. Both the grease and lubricating oil used meet the standards of American, European, Australian, Japanese, and Chinese grades. All bearing assemblies are manufactured using Delin's advanced processing technology to ensure smooth installation. The design of a short overhang and large-diameter shaft minimizes deviations, thereby extending the service life of the bearings.

Bearing Assembly with Externally Mounted Oil Lubrication Tank

The intelligent bearing lubrication and cooling system delivers stable and sufficient cooled lubrication to bearing assembly of various large size solid pumps (such as slurry pumps, sewage pumps, and dredging pumps), effectively extending bearing service life while ensuring stable and safe pump operation.

Drive Types

Standard accessories can be selected based on specific working conditions, and custom designs are available to accommodate actual site dimensions. A variety of materials are offered for selection, with full coverage protection for the transmission section achievable.

Sealing Types

1. Gland seal: suitable for all kinds of working conditions, need high pressure water flushing, easy to replace

2. Expeller Lip Seal:Expeller features a simple structure requiring no complex machining. The lip seal utilizes standard components with compact size and light weight. Replacement can be performed without disassembling major components, delivering higher maintenance efficiency compared to mechanical seals.

3. Expeller & Gland  Seal:The expeller rotates synchronously with the pump shaft without requiring an external power source. It achieves sealing solely through centrifugal force, making it more energy-efficient compared to mechanical seals that require external flushing systems.

4. Mechanical Seal: Advanced international sealing technology providing leak-free performance. The cartridge-type design enables easy installation and replacement, with various configurations available to suit different operating conditions. The friction pair (stationary ring & rotating ring)  utilizes high-hardness ceramics and alloy materials, while the mechanical seal and seal chamber are engineered to match media flow state, delivering exceptional abrasion resistance and vibration tolerance. This ensures reliable sealing performance even under the most severe conditions.

DHE Series Selection Chart

Specifications And Parameters