HWX single-phase explosion-proof oil-water high-pressure pump is composed of aluminum alloy and flow channel copper impeller. This series has the advantages of large flow, high self-priming speed, fast energy consumption and low cost. It can transport flammable and explosive media such as gasoline, alcohol, methanol, kerosene, diesel, etc. It is suitable for industrial and mining enterprises Gas station oil depot mine Dengfeng site circulation drainage can also be used as an explosion-proof consumption pump, a cart can be installed according to customer requirements
Features
Large flow, high lift, fast self-priming, low energy consumption
Filling cart for easy portability
| Technical Specification | ||||||||
Model | Size(mm) | Flow(L/min) | Head(m) | Power(KW) | Valtage(V) | Speed(rpm) | Material | Impellererial |
HWX25-8-15 | 25 | 133 | 15 | 1.1 Explosion-Proof | 220 | 2900 | Aluminum Alloy | Copper impeller |
| HWX40-18-28 | 40 | 300 | 28 | 1.5 Explosion-Proof | 220 | 2900 | Aluminum Alloy | Copper Impeller |
| HWX50-25-28 | 50 | 417 | 28 | 2.2 Explosion-Proof | 220 | 2900 | Aluminum Alloy | Copper Impeller |
| HWX80-50-28 | 80 | 834 | 28 | 2.5 Explosion-Proof | 220 | 2900 | Aluminum Alloy | Copper Impeller |
| HWX100-75-20 | 100 | 1250 | 20 | 3 Explosion-Proof | 220 | 2900 | Aluminum Alloy | Copper Impeller |
HWX Single-Phase Explosion-Proof High-Pressure Pump
The HWX Single-Phase Explosion-Proof High-Pressure Pump is a high-performance industrial solution engineered for safe and efficient circulation of oil and water in hazardous environments. Its single-phase motor design allows easy installation in locations where three-phase power is unavailable, while advanced explosion-proof technology ensures safe operation in flammable or volatile industrial settings.
This comprehensive guide covers maintenance tips, product performance, maintenance procedures, and technical advantages, providing a detailed understanding of the pump’s capabilities and optimal use.
The HWX series offers a combination of robust construction, energy efficiency, and operational safety, making it ideal for demanding industrial applications.
Certified for ATEX and IECEx hazardous zones.
Prevents sparks and overheating in flammable environments.
Ensures safe operation under continuous load conditions.
Easy installation in areas without three-phase power.
Smooth start-up and consistent high-pressure output.
Reduces mechanical stress and electrical complexity.
Maintains stable oil-water circulation under high-pressure conditions.
Efficient impeller and pump chamber design minimizes energy loss.
Supports continuous operation without fluctuations.
Constructed with stainless steel and corrosion-resistant alloys.
Resistant to chemical corrosion, high temperatures, and mechanical wear.
Low maintenance and long service life, reducing operational costs.
Designed according to international energy-saving standards.
Reduces energy consumption while maintaining high output.
Eco-friendly design aligns with modern industrial sustainability requirements.

The HWX Single-Phase Pump demonstrates excellent performance in high-pressure oil-water circulation systems. Key specifications include:
| Parameter | Specification |
|---|---|
| Power Supply | Single-Phase 220V/50Hz or 110V/60Hz |
| Flow Rate Range | 5–150 m³/h |
| Maximum Pressure | Up to 2.0 MPa |
| Material Construction | Stainless steel, corrosion-resistant alloys |
| Explosion-Proof Standard | ATEX, IECEx |
| Temperature Range | -20°C to +120°C |
| Noise Level | <75 dB |
This performance makes the HWX pump suitable for petrochemical, chemical, power generation, and metallurgy industries, particularly in environments requiring continuous, high-pressure, and safe operation.
Proper maintenance of the HWX Single-Phase Pump ensures long-term reliability and efficiency.
Inspect the pump monthly for leaks, unusual noise, or vibration.
Check the integrity of explosion-proof seals and electrical connections.
Lubricate bearings and moving parts according to manufacturer recommendations.
Use high-quality lubricants compatible with high-temperature and chemical-resistant applications.
Flush the pump with clean water after each operation cycle to remove residues.
Avoid using corrosive cleaning agents that may damage the stainless steel components.
Inspect impellers, seals, and bearings regularly.
Replace worn components immediately to maintain high-pressure efficiency.
Disconnect the pump from the power source.
Ensure the surrounding environment is free of flammable gases.
Remove the pump housing and impeller carefully.
Inspect for signs of corrosion, wear, or blockage.
Clean all parts with non-corrosive solvents.
Lubricate bearings and mechanical seals according to specifications.
Reassemble the pump following the installation schematic.
Test the pump under low-pressure conditions before full operation.
| Issue | Possible Cause | Solution |
|---|---|---|
| Pump not starting | Power supply problem or electrical fault | Check wiring and voltage; replace faulty components |
| Low pressure output | Blocked impeller or leakage | Inspect and clean impeller; replace damaged seals |
| Excessive noise or vibration | Worn bearings or misalignment | Replace bearings; realign motor and pump |
| Overheating | Insufficient lubrication or high load | Lubricate bearings; reduce load temporarily |
The HWX Single-Phase Explosion-Proof High-Pressure Pump is widely used in industrial environments where safety, high pressure, and continuous operation are critical.
Circulates oil-water mixtures safely in hazardous chemical zones.
Handles corrosive liquids and maintains stable high-pressure flow.
Cooling systems for turbines and generators in high-load operations.
Circulates fluids in harsh, dust-prone environments.
Efficiently manages oil-water mixtures in treatment processes.
Certified Safety: ATEX and IECEx compliant.
High Performance: Stable high-pressure output for continuous operation.
Durable Materials: Stainless steel and corrosion-resistant alloys.
Energy Efficient: Reduces operational costs while maintaining performance.
Easy Installation: Single-phase power design for versatile deployment.
The HWX Single-Phase Explosion-Proof High-Pressure Pump is a reliable, safe, and efficient solution for industries requiring high-pressure oil-water circulation in hazardous environments. Its combination of technical advantages, durable construction, and international safety certifications ensures long-term performance and peace of mind.
By following proper maintenance techniques and schedules, users can maximize the pump’s efficiency, reliability, and lifespan, making it an excellent investment for petrochemical, chemical, power generation, metallurgy, and wastewater treatment 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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