HW Urea Pump series is a stainless steel self-priming miniature electric pump developed by our company. The impeller of the pump adopts a semi-open structure. Because the product integrates excellent structure, performance and shape, and the overflow parts and connecting frame are made of high quality Made of stainless steel, the product has the advantages of corrosion resistance, reliable performance, convenient use and maintenance, compact structure, low energy consumption, and good sealing performance. It can transport flammable and explosive media such as urea, methanol, gasoline, alcohol, and xylene.
Features
The flow parts are integral stainless steel 304
Corrosion-resistant mechanical seal, cold-resistant to minus 50 degrees, plus 150 degrees
Explosion-proof permanent magnet motor Protection class IP55
Built-in pressure reducing valve
Small size and easy to carry
| Technical Specification | ||||||||
Model | Size(mm) | Flow(L/min) | Head(m) | Power(KW) | Valtage(V) | Speed(rpm) | Material | Impellererial |
HW25-3-18 | 25 | 50 | 10 | 0.25 Explosion-Proof | 220 | 2900 | Stainless Steel | Stainless Steel |
| HW25-3-18 | 25 | 50 | 18 | 0.55 Explosion-Proof | 220 | 2900 | Stainless Steel | Stainless Steel |
| HW25-8-18 | 25 | 133 | 18 | 0.75 Explosion-Proof | 220 | 2900 | Stainless Steel | Stainless Steel |
| HW40-10-18 | 40 | 166 | 18 | 1.1 Explosion-Proof | 220 | 2900 | Stainless Steel | Stainless Steel |
| HW40-13-20 | 40 | 217 | 20 | 1.5 Explosion-Proof | 220 | 2900 | Stainless Steel | Stainless Steel |
| HW50-13-22 | 50 | 217 | 22 | 2.2 Explosion-Proof | 220 | 2900 | Stainless Steel | Stainless Steel |
| HW50-13-30 | 50 | 217 | 30 | 3 Explosion-Proof | 220 | 2900 | Stainless Steel | Stainless Steel |
HW Single-Phase Explosion-Proof Methanol Pump Series: Complete Guide
The HW Single-Phase Explosion-Proof Methanol Pump Series is engineered to provide safe, reliable, and efficient methanol transfer in hazardous environments. With a single-phase explosion-proof motor, this pump ensures stable operation, corrosion resistance, and precise fluid handling, making it ideal for chemical plants, fuel storage facilities, and small to medium industrial applications.
This series is designed for ease of maintenance, long-term reliability, and safety compliance, meeting the rigorous demands of modern industrial operations.
Explosion-Proof Design: Certified for use in flammable and hazardous areas.
Single-Phase Motor: Optimized for consistent power output and energy efficiency.
Corrosion-Resistant Construction: Suitable for methanol and other industrial chemicals.
Low Maintenance: Modular components allow quick servicing and part replacement.
Precision Fluid Handling: Ensures accurate methanol transfer with minimal leakage.
HW Single-Phase Explosion-Proof Methanol Pump Series: Complete Guide
The HW Single-Phase Explosion-Proof Methanol Pump Series is engineered to provide safe, reliable, and efficient methanol transfer in hazardous environments. With a single-phase explosion-proof motor, this pump ensures stable operation, corrosion resistance, and precise fluid handling, making it ideal for chemical plants, fuel storage facilities, and small to medium industrial applications.
This series is designed for ease of maintenance, long-term reliability, and safety compliance, meeting the rigorous demands of modern industrial operations.

Explosion-Proof Design: Certified for use in flammable and hazardous areas.
Single-Phase Motor: Optimized for consistent power output and energy efficiency.
Corrosion-Resistant Construction: Suitable for methanol and other industrial chemicals.
Low Maintenance: Modular components allow quick servicing and part replacement.
Precision Fluid Handling: Ensures accurate methanol transfer with minimal leakage.
Regular maintenance ensures long-term performance and safety. Follow these steps:
Daily Inspection
Check for unusual noise, vibration, or leaks.
Ensure the pump is operating within normal temperature ranges.
Weekly Maintenance
Lubricate motor bearings and inspect for wear.
Verify flow rate and pressure for proper operation.
Monthly Maintenance
Inspect mechanical seals and gaskets; replace if worn.
Clean impellers, valves, and internal piping to prevent buildup.
Quarterly Maintenance
Perform full inspection of pump housing and internal components.
Test electrical connections for corrosion or loose wiring.
Annual Overhaul
Conduct complete disassembly, cleaning, and replacement of worn parts.
Calibrate performance and safety parameters for optimal operation.
The HW Single-Phase Explosion-Proof Methanol Pump Series comes with a comprehensive warranty, ensuring peace of mind and reliable service:
Standard Warranty: Covers manufacturing defects for 12 months from the date of purchase.
Extended Warranty Options: Available for multi-year coverage with optional maintenance packages.
Technical Support: Includes installation guidance, troubleshooting, and performance monitoring.
Spare Parts Supply: Guarantees availability of mechanical seals, bearings, and other critical components.
Adhering to proper maintenance practices ensures consistent performance and long service life:
| Task | Frequency | Notes |
|---|---|---|
| Visual Inspection | Daily | Look for leaks, vibration, or noise |
| Lubrication | Weekly | Check motor bearings and lubrication levels |
| Flow and Pressure Test | Monthly | Confirm accurate methanol transfer |
| Seal and Gasket Inspection | Quarterly | Replace if signs of wear or leakage are found |
| Full Overhaul | Annually | Clean internal parts and inspect all components |
Best Practices:
Always use compatible lubricants.
Ensure motor is switched off before maintenance.
Follow local safety standards for explosion-proof equipment.
Proper storage is essential to preserve pump performance and prevent corrosion:
Environment: Store in a dry, ventilated area free from moisture and dust.
Temperature: Keep ambient temperature between 5°C to 40°C.
Positioning: Place the pump horizontally to prevent stress on the shaft.
Protection: Cover the pump to avoid dust accumulation and foreign particle ingress.
Idle Periods: Rotate shafts every few weeks to maintain bearing lubrication.
Enhanced Safety: Meets international explosion-proof standards.
Reliable Operation: Single-phase motor ensures stable and energy-efficient performance.
Durable Construction: Stainless steel housing resists corrosion and chemical damage.
Low Maintenance: Modular design allows quick part replacement and reduced downtime.
Precision Handling: Maintains accurate methanol transfer in hazardous conditions.
The HW Single-Phase Explosion-Proof Methanol Pump Series is widely used in industries requiring safe methanol transfer:
Small Chemical Plants – Safe and controlled methanol circulation.
Fuel Stations and Blending Facilities – Precise flow and leak-free operation.
Laboratories and Pilot Plants – Reliable for experimental or batch methanol processing.
Industrial Research Facilities – Safe handling of flammable liquids.
The HW Single-Phase Explosion-Proof Methanol Pump Series provides high reliability, operational safety, and precision for methanol transfer in hazardous industrial environments. Following proper maintenance, storage, and operational guidelines, users can achieve long-term efficiency and minimal downtime, making this pump series a trusted solution for chemical, fuel, and industrial applications.


Phone:+86 15868545868/+8618968868555
whatsapp:+86 15868545868/+8618968868555
Email:haiwan@haiwanpump.cn
Add:Meiao Street, Qiaoxia Town, Yongjia County Wenzhou City, Zhejiang, China
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