1、 Product introduction:
LQZP petrochemical process is a horizontal, single-stage, single suction hanging hip centrifugal pump, designed according to API 610 specification of American Petroleum Institute, and characterized by high reliability, long service life, stable operation, high universality, good cavitation performance and high efficiency.
2、 Product picture:
3、 Performance range
Temperature: - 80~+450 ℃ Pressure:~50bar Flow: - 2600 m3/h Lift: - 300 m
4、 Scope of application
Conveying low or high temperature, neutral or corrosive, clean or containing solid particles, mainly used in:
◎ Refinery, petrochemical industry, coal chemical industry and low temperature range
◎ Water supply plant, seawater desalination plant and power plant
◎ Environmental protection project
◎ Chemical industry, paper making, pulp industry, sugar making
5、 Structural characteristics
LQZP petrochemical process, the main body adopts radial split structure, and the pump body is divided into angle supports. The pump body with a diameter of more than 80mm is designed as double volute, which can balance the radial force well. The pump body and the pump cover are connected to form a pressure shell, which is highly safe and reliable.
The pump body can be equipped with a high fruit temperature (cooling) jacket, and the pump cover is equipped with a cooling water chamber to insulate (cool) the pump working chamber and expand the use range of this series of pumps. The impeller can be either a closed mechanism or an open structure, which is also suitable for conveying different media. The impeller is equipped with a mouth ring and a balance hole to balance the axial force. It can also be equipped with inducer to improve the vapor turbidity performance of the pump.
The bearing box can be made of cast iron and steel. The bearing is lubricated with thin oil, and the box is equipped with a constant oil cup, which can automatically control the oil level. The rear end bearing can adopt angular contact ball bearing or tapered roller bearing according to the working pressure and inlet pressure. The bearing is equipped with three cooling modes: air cooling water cooling and air cooling, which are suitable for different working conditions.
The seal chamber is completely designed in accordance with API682 standard, and can be equipped with single section and double end mechanical seals. The corrugated pipe mechanical seal can also adopt various flushing schemes. From the drive end, the pump is timely.
6、 Model selection parameters
7、 Need to know
(1) Regularly fill the bearing box with high-quality calcium base grease and replace the wearing parts
(2) If cavitation occurs when the pump is running, it must be stopped within 1 minute.
(3) When the pump is shut down for a long time, the inner flow passage of the pump shall be cleaned.
(4) If the power is cut off suddenly when the pump is running, the power must be turned off immediately and the outlet valve must be closed.
(5) The noise of the pump is ≤ 95dB. In case of vibration and noise, the pump should be shut down for inspection and troubleshooting before operation.
(6) The pump shall be used under suction, and the pump shall be filled or vacuumized before starting; The pump is used under the condition of reverse filling. Before starting, the pump shall be filled with the infusion fluid. After the air in the pump is expelled, the gate valve of the discharge pipe shall be closed.
LQZP Petrochemical Process
The LQZP Petrochemical Process is a high-performance chemical processing system designed for modern petrochemical facilities, refineries, and industrial chemical plants. With a focus on efficiency, safety, and environmental compliance, this system provides reliable fluid handling, precise process control, and durable material construction for a wide range of petrochemical applications.
The LQZP Petrochemical Process integrates state-of-the-art engineering, corrosion-resistant components, and optimized flow control to deliver consistent performance and long-term reliability. Its modular design allows for customized configurations tailored to specific petrochemical processes, including refining, chemical synthesis, and fluid transfer operations.
High-precision chemical processing capabilities for petrochemical and industrial applications
Corrosion-resistant materials to handle aggressive chemicals
Energy-efficient design to reduce operational costs and environmental impact
Modular and scalable configuration for flexible deployment
Advanced monitoring and control systems for operational safety
Oil refineries for hydrocarbon processing
Chemical plants for synthesis and fluid transfer
Industrial facilities handling corrosive and high-temperature fluids
Petrochemical research laboratories requiring precise process control
In a large oil refinery, the LQZP system was used to manage high-viscosity hydrocarbon fluids. The system’s corrosion-resistant pipelines and valves ensured uninterrupted flow and safe operation, minimizing downtime and maintenance costs.
A chemical manufacturing plant employed the LQZP system for precise chemical synthesis and mixing operations. Its high-precision control and modular design allowed for consistent output and improved product quality.
During a large-scale fluid transfer project, the LQZP system handled high-temperature and corrosive fluids efficiently. Its robust material construction and energy-efficient pumps reduced operational risk and enhanced overall process efficiency.
The LQZP system is built with durable, corrosion-resistant, and high-performance materials to ensure long-term reliability in demanding petrochemical environments.
| Component | Material Type | Description |
|---|---|---|
| Pipeline & Tubing | Stainless Steel / Alloy | Resistant to chemical corrosion and high temperatures |
| Valves & Fittings | High-Alloy Steel / PTFE | Durable against wear and chemical attack |
| Pumps & Motors | Stainless Steel / Cast Iron | High-efficiency pumps for various fluid types |
| Seals & Gaskets | PTFE / Viton | Ensure leak-free operation and chemical resistance |
| Control Panels | Stainless Steel / IP65 Enclosure | Protects electronics from harsh environments |
The LQZP Petrochemical Process undergoes rigorous performance testing to ensure safety, efficiency, and reliability. Key performance parameters include:
Flow Rate Accuracy: ±2% for precise chemical dosing and transfer
Pressure Stability: Maintains consistent operation under variable load
Temperature Resistance: Operates efficiently at high temperatures up to 200°C
Corrosion Resistance: Verified under prolonged exposure to aggressive chemicals
Energy Efficiency: Optimized pump and motor systems reduce energy consumption
Hydraulic Flow Tests – Validate flow rates and pump efficiency
Pressure Endurance Tests – Ensure system reliability under maximum pressure
Corrosion Simulation Tests – Expose system to aggressive fluids for long-term evaluation
Safety and Leak Tests – Verify all seals, valves, and joints are secure
The LQZP system complies with international environmental and safety standards, ensuring safe operation and minimal environmental impact.
Energy-efficient motors and pumps reduce overall power consumption
Corrosion-resistant materials extend operational life, reducing waste
Leak-proof design minimizes chemical spills and environmental contamination
Emission control systems for volatile fluids and gases
Ensure proper PPE (gloves, goggles, protective clothing) during operation
Follow pipeline pressure limits to prevent overpressurization
Conduct regular inspections of seals, valves, and pumps
Implement emergency shutdown procedures for high-risk scenarios
A well-structured upgrade and maintenance schedule ensures long-term reliability and optimal performance of the LQZP system.
| Component | Maintenance Interval | Maintenance Action |
|---|---|---|
| Pumps & Motors | Every 1000 hours | Lubricate, inspect for wear, and replace worn parts |
| Pipelines & Fittings | Annually | Check for corrosion, cracks, and leaks |
| Valves & Seals | Quarterly | Inspect and replace damaged gaskets |
| Control Panels | Semi-Annually | Test electronics, sensors, and alarms |
| System Calibration | Annually | Verify flow, pressure, and temperature accuracy |
Replace standard pumps with high-efficiency, low-energy models
Upgrade control systems with digital monitoring and automated flow control
Apply advanced anti-corrosion coatings to pipelines and fittings for harsh chemical environments
The LQZP Petrochemical Process has been highly rated by industry professionals for its reliability, efficiency, and versatility.
“Consistent and reliable performance” – Handles complex chemical processes without failure
“Energy-efficient design” – Reduces operational costs while maintaining high output
“Durable and low maintenance” – Minimal downtime with wear-resistant materials
“Flexible and scalable system” – Suitable for small-scale labs and large industrial plants
Refinery Operator A: “The LQZP system improved our fluid transfer process while ensuring safe operations.”
Chemical Plant B: “High-precision control allowed us to maintain consistent product quality across batches.”
Industrial Engineer C: “Its corrosion-resistant components significantly reduced maintenance costs over time.”
The LQZP Petrochemical Process provides a comprehensive solution for modern chemical and petrochemical industries, combining advanced materials, high efficiency, environmental compliance, and user-friendly design. With its proven performance in demanding applications, the LQZP system delivers reliable, safe, and energy-efficient operations, making it an ideal choice for refineries, chemical plants, and industrial processing facilities.
For companies seeking a robust, scalable, and high-performance petrochemical process system, the LQZP Petrochemical Process ensures long-term reliability, operational safety, and optimal productivity.
Phone：+86 15868545868/+8618968868555
whatsapp：+86 15868545868/+8618968868555
Email：haiwan@haiwanpump.cn
Add：Meiao Street, Qiaoxia Town, Yongjia County Wenzhou City, Zhejiang, China
Copyright ? 2025 Zhejiang Haiwan Pump Industry Co., Ltd.
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