LQRY type hot oil pumps are designed with a self-heat-radiating structure, replacing the traditional water-cooling system. This innovative design simplifies the pump’s operation, reduces its size, lowers operational costs, and ensures excellent performance and reliable operation. It represents the second generation of products developed by absorbing and applying foreign technology in our country.
**Key Features:**
1. The basic structure is a single-stage, single-suction cantilever foot-supported pump. The suction is axial, and the discharge is vertical, mounted on the same base as the motor.
2. The pump is supported by double ball bearings, with the front end lubricated by oil and the rear end by grease. A guide tube is placed in the middle to monitor the sealing condition and recover heat transfer oil.
3. The shaft seal combines packing and mechanical seals. High-temperature resistant packing ensures good thermal adaptability, while the mechanical seal uses high-strength, wear-resistant hard alloy materials, ensuring effective sealing under high-temperature conditions. Additionally, imported PTFE (polytetrafluoroethylene) is used for lip seals, offering superior sealing performance, 25 times more reliable than rubber seals, and excellent corrosion resistance.
**Model Explanation:**
For example: LQRY 65-50-170
- LQRY: Hot oil pump
- 65: Pump suction diameter (mm)
- 50: Pump discharge diameter (mm)
- 170: Impeller nominal diameter (mm)
**Performance Table:**
| Model | Capacity (m³/h) | Head (m) | Speed (r/min) | Shaft Power (KW) | Motor Power (KW) | Efficiency (%) | NPSH (m) |
|-------------|------------------|----------|---------------|-------------------|------------------|----------------|-----------|
| 26-20-100 | 4.5 | 15 | 2825 | 0.45 | 0.75 | 40 | 0.8 |
| 50-32-150 | 8 | 22 | 2840 | 1.0 | 1.5 | 42 | 1.6 |
| 50-32-160 | 10 | 25 | 2840 | 1.5 | 2.2 | 42 | 1.8 |
| 65-40-160 | 12.5 | 25 | 2880 | 2.5 | 3 | 45 | 2.2 |
| 50-50-170 | 12.5 | 32 | 2890 | 3.2 | 4 | 45 | 2.5 |
| 50-50-150 | 24 | 18 | 2890 | 3.1 | 4 | 46 | 1.8 |
| 65-40-190 | 18 | 40 | 2890 | 4.5 | 5.5 | 52 | 2.8 |
| 65-50-180 | 32 | 32 | 2900 | 4.5 | 5.5 | 52 | 2.7 |
| 65-50-170 | 40 | 25 | 2900 | 4.5 | 5.5 | 52 | 2.7 |
| 65-50-150 | 52 | 16 | 2900 | 4.2 | 5.5 | 52 | 2.8 |
| 65-40-200 | 25 | 50 | 2900 | 6.7 | 7.5 | 63 | 3.1 |
| 80-50-180 | 40 | 40 | 2900 | 6.7 | 7.5 | 63 | 3.1 |
| 80-50-170 | 60 | 20 | 2900 | 6.7 | 7.5 | 63 | 3.1 |
| 100-65-190 | 60 | 38 | 2930 | 9.2 | 11 | 68 | 3.5 |
| 100-65-200 | 80 | 40 | 2930 | 12.5 | 15 | 70 | 3.5 |
| 100-65-220 | 58 | 50 | 2930 | 12.5 | 15 | 68 | 3.5 |
| 100-65-210 | 90 | 45 | 2930 | 15.7 | 18.5 | 70 | 3.6 |
| 100-65-230 | 58 | 60 | 2930 | 15.5 | 18.5 | 62 | 3.5 |
| 100-65-230 | 100 | 55 | 2940 | 19.5 | 22 | 70 | 3.6 |
| 125-100-190 | 155 | 30 | 2930 | 17.6 | 22 | 72 | 3.8 |
| 100-65-240 | 100 | 70 | 2950 | 25.5 | 30 | 69.8 | 4.1 |
| 100-65-257 | 100 | 80 | 2950 | 32.5 | 37 | 67 | 3.6 |
| 125-100-220 | 160 | 45 | 2950 | 25.5 | 37 | 75 | 3.6 |
| 125-80-250 | 160 | 60 | 2970 | 35.5 | 45 | 74 | 5 |
| 125-80-270 | 150 | 85 | 2970 | 46 | 55 | 73 | 5 |
| 125-100-250 | 200 | 60 | 2970 | 42.8 | 55 | 76.8 | 6 |
| 125-100-257 | 260 | 70 | 2970 | 64.3 | 75 | 77 | 6.8 |
| 125-100-265 | 200 | 80 | 2970 | 59 | 75 | 74 | 6 |
| 125-100-245 | 300 | 55 | 2970 | 61 | 75 | 74 | 7.5 |
| 125-100-260 | 300 | 70 | 2970 | 75.3 | 90 | 78.2 | 8 |
| 125-100-270 | 220 | 85 | 2970 | 68 | 90 | 76 | 6 |
| 125-100-280 | 260 | 85 | 2970 | 75 | 90 | 76 | 6.8 |
| 150-125-250 | 350 | 60 | 2970 | 75.2 | 90 | 76 | 8.6 |
| 150-125-240 | 400 | 50 | 2970 | 72 | 90 | 76 | 9.8 |
| 150-125-270 | 340 | 76 | 2970 | 89.5 | 110 | 78.6 | 8.5 |
| 150-125-250 | 400 | 60 | 2970 | 88 | 110 | 74 | 9.8 |
| 150-125-280 | 400 | 78 | 2970 | 106 | 132 | 80.6 | 9.8 |
| 150-125-280 | 370 | 85 | 2970 | 106 | 132 | 80 | 9.7 |
| 250-200-500 | 500 | 80 | 1480 | 136 | 160 | 76 | 5 |
| 300-250-500 | 600 | 80 | 1480 | 158 | 185 | 70 | 9 |
| 250-200-550 | 700 | 80 | 1480 | 190 | 220 | 81 | 14 |
These pumps are ideal for high-temperature applications and are widely used in industrial and commercial systems where reliability and efficiency are essential. Whether you need a small or large-scale solution, there is an LQRY model that fits your requirements.
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