UHB Series Horizontal Chemical Slurry Pump
This UHB Series Horizontal Chemical Slurry Pump, independently developed by Changyu, is a horizontal, single-stage, single-suction centrifugal pump specifically designed for conveying corrosive slurries containing fine particles. Featuring a steel-lined UHMW-PE construction, it offers excellent wear and corrosion resistance. The semi-open impeller ensures high flow capacity, and the pump is available with either mechanical or dynamic seals. It is widely used in the chemical, metallurgical, and fertilizer industries for the conveyance of acids, alkalis, and abrasive media.
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Flow Range : |
3~2600m³/h |
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Head Range: |
5-80m |
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Solid content : |
≤ 40% (including fine particles and soft/hard particles) |
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Temperature : |
-20°C-100°C (modified materials can withstand temperatures up to approximately 120°C) |
Introduction
Changyu Pump’s UHB Series Horizontal Chemical Slurry Pump is a cantilevered, single-stage, single-suction centrifugal pump designed and developed specifically for conveying corrosive media containing fine particles. The pump is constructed with a steel lining coated with ultra-high molecular weight polyethylene (UHMW-PE), a next-generation engineering plastic for pumps that offers outstanding wear resistance, impact resistance (particularly at low temperatures), creep resistance (resistance to environmental stress cracking), and excellent corrosion resistance, making it superior to all other plastics.
The structural design features a cantilevered, front-opening configuration, and the impeller is semi-open (without a front cover plate), which enhances flow passage within the flow path. This allows particles and impurities in the medium to pass through the pump chamber quickly without causing blockages. The shaft seal consists of a K-type fluororubber sealing ring with an external cooling water jacket, meeting both corrosion and wear resistance requirements. Alternatively, our proprietary double-face mechanical seal can be used. (Additionally, fluoroplastic linings can be incorporated to meet specific customer requirements for corrosion or temperature resistance, and non-standard models with custom flow rates and heads can be manufactured.)
Working Principle
The UHB series chemical slurry pump is driven by an electric motor, which uses a coupling to drive the pump shaft and semi-open impeller to rotate at high speed. Under the action of centrifugal force, the corrosive slurry containing particles at the inlet is continuously drawn into the center of the impeller and flung into the volute passage. During this flow, kinetic energy is gradually converted into pressure energy, thereby achieving stable and continuous conveyance. The steel-lined UHMW-PE construction effectively resists corrosion and wear from the medium, enabling long-term, stable operation even under conditions involving particulate matter.
Parts of the UHB Series Horizontal Chemical Slurry Pump
The UHB series chemical slurry pump consists of several key components, including the pump casing, impeller, pump shaft, bearing assembly, and sealing system. The pump casing features a corrosion-resistant lining; the impeller is responsible for transferring energy to the fluid; the pump shaft and bearing system ensure stable power transmission and operational precision; and the sealing system is designed to prevent fluid leakage and accommodate various operating conditions.
Pump Casing
The pump casing features a steel-lined ultra-high molecular weight polyethylene (UHMWPE) structure with a lining thickness of 8–20 mm. This pump utilizes patented plastic-lining technology, offering advantages over similar pumps, including excellent resistance to thermal deformation, crack resistance, prevention of lining peeling, and high operating temperature tolerance.
Bearings
Imported bearings with guaranteed quality, manufactured using European-standard processes, genuine original parts, and designed for long-term operation.
Impeller
Made of ultra-high molecular weight polyethylene, available in open or closed configurations (selectable based on medium conditions), featuring high flow capacity, corrosion resistance, and wear resistance.
Double-sided Water-Cooled Mechanical Seal
Modular mechanical seal design ensures greater reliability, dry-running resistance, and high efficiency. (Available seal options: K-type dynamic seal, K1-type dynamic seal, T-type packing seal, T1-type packing seal, C3-type custom seal.)
Pump Lining
Impeller Structure
Bearings
Sealing Method
Features of our proprietary seals:
The K-type dynamic seal primarily consists of a secondary impeller (or secondary vane) and a standstill seal (rubber oil seal). During operation, the centrifugal force generated by the rotation of the secondary impeller (or secondary vane) creates a negative pressure in the seal chamber, thereby preventing liquid leakage outward; at this point, the standstill seal is inactive.
The lip of the rubber oil seal loosens due to the negative pressure, creating a certain gap with the shaft sleeve, which reduces wear between them and extends service life. When the unit is shut down, as the auxiliary impeller (or auxiliary vane) stops rotating, the seal chamber transitions from negative to positive pressure, and the shutdown seal begins to function. Under pressure, the lip of the rubber oil seal tightly wraps around the shaft sleeve, thereby achieving the sealing objective. If cooling water is allowed to enter the medium, a K-type dynamic seal with cooling water can be selected, or an external cooling water system can be added to extend the service life of the oil seal. The oil seal of this type is made of fluororubber and is primarily suitable for conveying corrosive media such as slurries containing solid particles and sewage containing impurities (the cooling water used for the K-type dynamic seal with cooling water must be clean tap water, with a pressure preferably within 0.05 MPa).
Chemical Slurry Pump Specifications
| Item | Specification |
|---|---|
| Pump Type | Horizontal, single-stage, single-suction centrifugal pump |
| Material | Steel-lined UHMW-PE (Ultra-High Molecular Weight Polyethylene) |
| Impeller Type | Semi-open impeller |
| Flow Rate | 5 – 2600 m³/h |
| Head | ≤ 80 m |
| Inlet Diameter | 32 – 350 mm |
| Operating Temperature | -20°C to 100°C (up to ~120°C with modified material) |
| Solids Content | ≤ 40% (fine, hard or soft particles) |
| Seal Type | K-type dynamic seal / mechanical seal / packing seal (optional) |
| Drive Type | Electric motor driven |
| Voltage | 380V (customizable) |
| Bearing | Imported high-precision bearings |
| Application Media | Acids, alkalis, salts, oxidizing agents, abrasive slurries, chemical liquids |
| Installation Type | Horizontal installation |
Model Description (UHB Series)
UHB series pump model is generally composed of pump type, inlet diameter, outlet diameter, and flow/head code. It is used to identify pump structure size and performance parameters.
Example: 65UHB
- 60: Inlet diameter (mm)
- UHB: Ultra-high molecular weight polyethylene lined corrosion-resistant slurry pump series
Model Meaning Summary
The model designation reflects pump size, structural type, and hydraulic specification, helping to select suitable pump based on flow requirement, pipeline size, and working condition.
Note: At Changyu, we provide one-on-one technical guidance and product recommendations tailored to your specific operating conditions. If you have any questions, please feel free to contact us right away, our team of experts will respond within 24 hours.
Email: jade@changyupump.com
Phone: +86-13651913727
Advantages of the Chemical Slurry Pump
Strong corrosion & wear resistance
Pump wetted parts are lined with UHMW-PE, providing strong resistance to acids, alkalis, salts, and abrasive slurries, ensuring stable operation in harsh chemical environments.
Flexible sealing options
Supports K-type dynamic seal, mechanical seal, and packing seal, suitable for different leakage control requirements and working conditions.
High solids handling
Semi-open impeller design improves flow passage and allows smooth handling of slurries containing fine, hard, or soft particles, reducing blockage risk.
Wide application range
Designed for chemical, metallurgical, fertilizer, and environmental industries, suitable for corrosive liquids and slurries with up to 40% solids content.
Applications: Horizontal Chemical Slurry Pump
The Changyu Horizontal Chemical Slurry Pump is designed to handle a wide range of operating conditions, such as the transfer of acidic or alkaline clear liquids or slurries; various corrosive mineral slurries in the smelting industry; various dilute acids in the sulfuric acid industry; and various types of wastewater in the environmental protection sector. This pump is both corrosion-resistant and wear-resistant, making it suitable for a wide range of applications.
Phosphate Fertilizer Industry
Conveyance of media such as dilute acid, mother liquor, wastewater, seawater, fluorosilicic acid containing silica gel, and phosphate slurry.
Non-ferrous metal smelting industry
Particularly suitable for the conveyance of various media, including acid solutions used in the hydrometallurgical processing of lead, zinc, gold, silver, copper, manganese, cobalt, and rare earth elements; corrosive slurries; feed slurries (for use with filter presses); electrolytes; and wastewater.
Chemical Industry
Positions involving the handling of clear liquids or slurries containing sulfuric acid, hydrochloric acid, alkalis, and oils. Industries such as titanium dioxide and iron oxide production, the manufacture of various dyes and pigments, and the processing of non-metallic minerals.
Water Treatment Industry
Pure water, ultra-pure water, wastewater (leather wastewater, electroplating wastewater, electronics wastewater, paper manufacturing wastewater, textile wastewater, food processing wastewater, domestic wastewater, pharmaceutical wastewater, etc.).
Leading Manufacturer of UHB Series Chemical Slurry Pumps
Founded in 2006, Anhui Changyu Pump and Valve Manufacturing Co., Ltd (Changyu Pump) is a national high-tech enterprise specializing in the R&D and manufacturing of industrial corrosion-resistant pumps. With a 20,000 m² modern production facility and over 20 years of engineering experience, we are recognized as an “Anhui Specialized and Sophisticated SMB” with strong capabilities in chemical pump technology and material innovation.
The UHB Series Chemical Slurry Pump is one of our core product lines, designed for handling corrosive and abrasive slurries containing solid particles. Built with steel-lined UHMW-PE structure, the UHB pump delivers excellent wear resistance, corrosion resistance, and stable operation under demanding industrial conditions. It is widely used in chemical processing, metallurgy, fertilizer production, and environmental protection systems.
Supported by ISO 9001 certification, CE compliance, and more than 50 patents, Changyu Pump is committed to providing reliable, long-life, and cost-effective UHB slurry pump solutions for global customers in harsh and complex working environments.
Email: jade@changyupump.com
Phone: +86-13651913727
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Our UHB Series Chemical Slurry Pump is designed for corrosive and abrasive slurry conditions where standard pumps fail. With UHMW-PE lining and semi-open impeller, it ensures stable transport of acids, alkalis, and solids. Changyu Pump delivers reliable, long-life performance in chemical, metallurgy, fertilizer, and wastewater applications worldwide.
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