CYA Series Horizontal Single stage Centrifugal Pump
The CYA series from Changyu Pump is a horizontal, single-stage, end-suction centrifugal pump designed to handle clean water and liquids with physical and chemical properties similar to water, provided they contain no solid particles. The pumps can be customised to meet specific requirements. Compliant with the EN733/ISO2858 international standards, they are available in materials ranging from cast iron to 2205 duplex stainless steel, making them ideal for general-purpose fresh water, high-temperature hot water, seawater and highly corrosive chemical media.
This series features a third-generation hydraulic model for significant energy savings and is available in both suspended and direct-coupled configurations. It comes standard with PN16 flanged direct-coupled connections to Chinese national standard piping, allowing for maintenance via rear access without dismantling the piping, thereby substantially reducing space requirements and long-term operating costs.
|
Flow Rate Range : |
4.5m³/h ~ 1660m³/h |
|---|---|
|
Head Range: |
5.2m~150m |
|
Motor Power : |
0.55 kw ~ 315 kw |
|
Speed: |
968 ~ 3450 r/min |
|
Medium Temperature Range: |
-15℃～120℃ |
|
Customizable Materials: |
HT250、QT450、ZG35、SS304、SS316、SS316L、2205、2507、C83600、C95200 |
Introduction
The CYA Series Single Stage Horizontal Centrifugal Pump is a high-performance fluid handling solution engineered for industrial reliability and efficiency. Designed with a robust single-casing structure, this horizontal single-stage centrifugal pump features an innovative back-pull-out design, allowing for seamless maintenance of the impeller and shaft seal without disconnecting suction or discharge piping. This significantly minimizes operational downtime and labor costs.
Built to withstand demanding environments, it offers exceptional resistance to cavitation and low energy consumption. With versatile sealing options—including single, double, or balanced mechanical seals—and a wide range of material selections like SS304, SS316L, and Cast Steel, it ensures the safe transportation of both clean water and aggressive chemical fluids. Whether applied in industrial cooling, chemical processing, or urban water supply, the CYA series delivers stable performance under pressures up to 1.0 MPa and temperatures ranging from -10°C to +85°C. Trust our ISO-certified technology for your most critical fluid transfer needs.
Parts of the CYA Series Horizontal Single stage Centrifugal Pump
- The casing is cast as a single unit, consisting of the volute chamber, base, and inlet/outlet flanges; the inlet is axial, and the outlet is radial.
- The pump has a rear-opening structure, eliminating the need to disassemble the suction and discharge pipes for maintenance; the pump is directly driven by an electric motor or internal combustion engine (diesel or gasoline engine) via a flexible coupling.
- The pump’s shaft seal type is divided into packing type and mechanical seal type; the mechanical seal type includes three types: internal mechanical seal, external mechanical seal, and balanced mechanical seal. The balanced mechanical seal is used for pumps with operating pressures >1.6 MPa.
- The pump’s bearing lubrication methods include grease lubrication and oil lubrication.
- Bearing configuration of the suspension components.
High-Precision Impeller
- Features: Each impeller undergoes strict dynamic balance testing to ensure vibration-free operation. Available in closed types with multiple material options (SS304/SS316L/Cast Steel) to resist wear and cavitation.
- Description: The heart of the pump, designed with an optimized hydraulic model to maximize energy conversion.
Heavy-Duty Pump Casing
- Description: A single-casing horizontal volute design with integrated casting of the pump body and support feet.
- Features: The robust construction provides superior resistance against pipeline stress. The smooth flow channel design reduces friction loss and enhances overall hydraulic efficiency.
Reliable Shaft & Bearing Assembly
- Description: High-strength steel shaft supported by premium heavy-duty bearings.
- Features: Engineered for minimal shaft deflection, ensuring stable rotation even under high loads. This assembly extends the service life of both the mechanical seal and the motor.
Advanced Shaft Sealing System
- Description: Flexible sealing configurations based on your specific medium requirements.
- Features: Supports Single/Double Mechanical Seals (Balanced or Unbalanced) for leak-free chemical handling, or Soft Packing Seals for economical water supply maintenance.
Innovative Back-Pull-Out Bracket
- Description: A maintenance-friendly structural design that defines the CYA series.
- Features: Allows for the removal of the entire rotor assembly (impeller, shaft, and seals) for inspection without disturbing the suction or discharge piping, significantly reducing downtime.
Flexible Coupling
- Description: Connects the pump to the motor or diesel engine.
- Features: Compensates for minor angular and axial misalignments, absorbing start-up shocks and protecting the drive system from premature wear.
Notice: Confused about parts installation or maintenance? Our engineering team is here to help! Whether it’s optimizing seal performance or navigating the back-pull-out system, we provide professional guidance to ensure your operations run smoothly.
Email: [email protected]
Tel/WhatsApp: +86-13651913727
Specifications
Technical Specifications: CYA Horizontal Single-stage Centrifugal Pump
| Parameter | Range / Specifications |
| Flow Rate (Q) | 4.5m³/h ~ 1660m³/h |
| Head (H) | 5.2m~150m |
| Standard Speed | 2900 rpm (50Hz) / 3550 rpm (60Hz) |
| Inlet/Outlet Diameter | DN32 – DN150 |
| Working Temperature | -15°C to +120°C (Up to 120°C with custom cooling) |
| Max. Operating Pressure | 1.0 MPa (Standard) / 1.6 MPa (Optional) |
| NPSHr (Cavitation) | 2.0 m – 5.0 m |
| Motor Efficiency | IE3 High-efficiency (Standard) |
Design & Manufacturing Standards
- EN733 (European Standard): Fully compliant.
- ISO2858 (International Standard): Partially compliant (Main performance and interface dimensions match for easy global interchangeability).
Flange Specifications
Standard Configuration: Complies with DIN24255 (corresponding to EN733) and is fully compatible with Chinese GB9119 PN16 standards.
Engineering Benefit: Users can directly connect standard PN16 flanges without custom adapters, reducing site piping complexity and procurement costs.
Detailed Material Configuration (Customizable)
To ensure maximum durability in different environments, the Horizontal Single-stage Centrifugal Pump offers various material options:
- Casing/Impeller: Cast Iron (HT200), Ductile Iron (QT400-18), Cast Steel (WCB), Stainless Steel (SS304, SS316, SS316L).
- Pump Shaft: High-strength Stainless Steel (2Cr13 or SS304/316).
- Static Sealing: Fluorine Rubber (Viton) / EPDM / PTFE.
Metallurgy & Media Compatibility
Cast Iron (HT250) & Ductile Iron (QT450-10): Cost-effective solutions for standard water services, cooling circulation, and non-corrosive fluids.
Stainless Steel (SS304/SS316/SS316L) & Bronze: Designed for chemical processing, mild acids, alkalis, and industrial water treatment.
Duplex Stainless Steel (2205/2507): Engineered specifically for severe corrosive environments, offering exceptional resistance to chloride-induced pitting and stress corrosion cracking (SCC) in seawater and high-salt applications.
Standard Sealing Options
- Gland Packing: An economical, easy-to-maintain configuration designed for clean water at low or ambient temperatures.
- Mechanical Seal: Available in single, double, or balanced configurations. Engineered for hot water, mild corrosive media, or fluids with trace impurities, ensuring leak-free reliability.
Model Identification Code (Example)
To help you select the right Horizontal Single-stage Centrifugal Pump, please refer to our naming convention:
Example: CYA 50 / 160 A
- CYA: Series Name (Horizontal Single-stage Pump)
- 50: Discharge Diameter (mm)
- 160: Nominal Impeller Diameter (mm)
- A: Impeller Cutting Code (A, B, or C indicates different performance curves)
Email: [email protected]
Tel/WhatsApp: +86-13651913727
Structural Design Note: Frame-Mounted vs. Close-Coupled Configurations
Please note that while the standard model identification codes in the selection matrix below refer to the standard hydraulic performance of the CYA Series, Changyu Pump provides two optional structural configurations for every single model to match your specific piping and spatial requirements.
1. Frame-Mounted Architecture (XA Type / IEC B3 Standard)
- Design Character: Features an independent bearing housing and a flexible coupling connecting the pump shaft to the motor.
- Engineering Advantage: Features the standard Back-Pull-Out capability. The complete rotor assembly (bearing frame, shaft, seal, and impeller) can be pulled out from the rear for inspection or maintenance without separating the suction/discharge pipelines from the casing.
- Best Suited For: Heavy-duty industrial basements, continuous process plants, and high-temperature fluid loops where line stresses must be isolated.
2. Close-Coupled Architecture (XAW Type / IEC B35 Standard)
- Design Character: Features a compact direct-drive design where the pump casing is securely bracketed to the motor flange, utilizing an extended motor shaft.
- Engineering Advantage: Eliminates the need for precise shaft alignment during installation or site servicing, significantly reducing labor. The integrated design reduces the physical footprint and total equipment weight by 20% to 30%.
- Best Suited For: Skid-mounted equipment, fluid handling modules, mobile pumping stations, or compact mechanical rooms with strict space limits.
Configuration Selection Matrix
| Engineering Factor | Frame-Mounted (XA Type) | Close-Coupled (XAW Type) |
| IEC Installation Standard | B3 (Foot Mounted) | B35 (Foot & Flange Mounted) |
| Shaft Coupling | Flexible / Spacer Coupling | Direct Drive (Extended Shaft) |
| Laser Alignment on Site | Required during commissioning | Not Required (Factory Pre-aligned) |
| Maintenance Footprint | Requires standard clearance | Highly Compact (Space Saving) |
| Core Maintenance Focus | Zero pipeline disruption | Reduced component count, fast swap |
Note: If your engineering drawing requires a specific IEC B3 or B35 mounting layout, please specify your preference to our sales engineers when requesting a quotation based on the performance table below.
CYA Series Horizontal Single Stage Centrifugal Pump Download
Advantages of Horizontal Single stage Centrifugal Pump
Innovative Back-Pull-Out Design
Engineered with a maintenance-friendly back-pull-out structure. The complete rotor assembly—including the impeller, shaft, and seals—can be removed from the rear without separating the suction/discharge piping or displacing the motor. This structural advantage substantially cuts maintenance hours and operational downtime.
Optimized Hydraulics & Closed Impeller
Utilizing a third-generation hydraulic model, the precision closed impeller limits internal recirculation and energy loss. Every impeller undergoes strict dynamic balancing combined with a high-rigidity shaft. This eliminates vibration during high-speed operation, lowering turbulence and significantly extending the fatigue life of bearings and seals.
Versatile Shaft Sealing Solutions
Offers adaptive shaft sealing configurations to match diverse medium requirements. Select single, double, or balanced mechanical seals (with Viton/PTFE) for zero-leakage chemical processing, or choose soft packing seals for economical water transfer. This allows a single pump series to adapt fluid properties seamlessly.
Robust Metallurgy & Broad Parameter Coverage
Features a single-casing structure with integrated support feet to absorb pipeline stress under pressures up to 1.0 MPa. Available in extensive metallurgies from Cast Iron to Duplex Stainless Steel (2205/2507). Its broad performance range satisfies diverse loops, allowing single-series standardization to reduce customer spare parts inventory.
Applications of CYA Horizontal Single stage Centrifugal Pump
Our CYA series horizontal single-stage centrifugal pumps provide high-efficiency fluid handling solutions. Engineered for durability and reliability, they are widely used across multiple sectors for safe and stable transportation of various media.
Chemical Industry
Corrosive fluid and acid transportation.
Industrial Manufacturing
Cooling circulation and factory drainage.
Municipal Engineering
Urban water supply and boosting.
Modern Agriculture
Large scale irrigation and drainage.
Leading Manufacturer of High-Performance Horizontal Single stage Centrifugal Pumps
Established in 2006, Anhui Changyu Pump and Valve Manufacturing Co., Ltd is a leading national high-tech enterprise with over 20 years of expertise in industrial fluid solutions. Operating from a 20,000 m² smart factory, we boast an annual production capacity of 20,000 units, ranking among the top industrial manufacturers in the region.
Our commitment to quality is backed by ISO 9001, CE, and KC certifications, along with more than 50 independent patents. As a specialist in corrosive and valuable fluid transportation, we integrate R&D, digital manufacturing, and global service to deliver high-performance horizontal single-stage centrifugal pumps.
Whether you need standard models or customized industrial solutions, our engineering team is ready to support your project. Contact us today for professional technical consulting and a factory-direct quote. Let Changyu Pump be your trusted partner in chemical and industrial fluid management.
Factory Show
FAQs
Project Showcases
From complex chemical processing to large-scale municipal water supply, our extensive library of real-world applications demonstrates the reliability, efficiency, and long-term durability of our fluid solutions across diverse and demanding environments.
Request a free quote
Please fill in the details of your pumped liquid, including flow, head, specific gravity, and temperature, so we can recommend the best pump and provide a precise quote.