We hope to emphasize the emphasis on the quality of 396 roots blower, bleed brakes with a vacuum pump, Twin Lobe Roots Blower, strengthening the construction of the product lines, consolidating the bases and strengthening the bases of the company. In the current of the market economy, honesty is the market and service is productivity, therefore an honest service is the starting point and purpose of a business. Our technical advantages are reflected in the establishment of a comprehensive quality assurance system within the technical department.
Three lobed low noise roots blower from Nantong Rongheng, we are professional roots blower manufacturer since 1993.
Roots type blower are widely used in water treatment and gas delivery sector.

| Model | Speed(n) | △P | flow(Q) | shaft power | motor | weight | ||
| r/min | kPa | mmH2O | m3/min | kW | model | kW | kg | |
| RH20053 | 980 | 9.8 | 1000 | 28.7 | 8.2 | Y2-160L-6 | 11 | 1117 |
| 19.6 | 2000 | 27.7 | 12.6 | Y2-180L-6 | 15 | 1170 | ||
| 29.4 | 3000 | 26.9 | 17.0 | Y2-200L1-6 | 18.5 | 1190 | ||
| 39.2 | 4000 | 26.3 | 21.7 | Y2-225M-6 | 30 | 1270 | ||
| 49 | 5000 | 25.7 | 26.4 | Y2-225M-6 | 30 | 1270 | ||
| 58.8 | 6000 | 25.1 | 32.2 | Y2-250M-6 | 37 | 1470 | ||
| 68.6 | 7000 | 24.5 | 38.0 | Y2-280S-6 | 45 | 1646 | ||
| 78.4 | 8000 | 24.1 | 43.3 | Y2-280M-6 | 55 | 1666 | ||
| 88.2 | 9000 | 23.3 | 48.5 | Y2-280M-6 | 55 | 1666 | ||
| 98 | 10000 | 22.5 | 53.7 | Y2-315S-6 | 75 | 1829 | ||
| 1100 | 9.8 | 1000 | 32.7 | 9.3 | Y2-160M-4 | 11 | 1127 | |
| 19.6 | 2000 | 31.7 | 14.4 | Y2-180M-4 | 18.5 | 1226 | ||
| 29.4 | 3000 | 30.9 | 19.8 | Y2-200L-4 | 30 | 1300 | ||
| 39.2 | 4000 | 30.3 | 25.2 | Y2-200L-4 | 30 | 1300 | ||
| 49 | 5000 | 29.7 | 30.7 | Y2-225S-4 | 37 | 1360 | ||
| 58.8 | 6000 | 29.1 | 36.2 | Y2-225M-4 | 45 | 1400 | ||
| 68.6 | 7000 | 28.5 | 41.8 | Y2-250M-4 | 55 | 1469 | ||
| 78.4 | 8000 | 27.9 | 47.6 | Y2-250M-4 | 55 | 1469 | ||
| 1200 | 9.8 | 1000 | 36.1 | 10.4 | Y2-160L-4 | 15 | 1197 | |
| 19.6 | 2000 | 35.1 | 16.2 | Y2-180M-4 | 18.5 | 1229 | ||
| 29.4 | 3000 | 34.3 | 22.2 | Y2-200L-4 | 30 | 1303 | ||
| 39.2 | 4000 | 33.7 | 28.3 | Y2-225S-4 | 37 | 1363 | ||
| 49 | 5000 | 33.1 | 34.5 | Y2-225M-4 | 45 | 1403 | ||
| 58.8 | 6000 | 32.5 | 40.7 | Y2-225M-4 | 45 | 1403 | ||
| 68.6 | 7000 | 31.9 | 47.0 | Y2-250M-4 | 55 | 1472 | ||
| 78.4 | 8000 | 31.3 | 53.5 | Y2-280S-4 | 75 | 1607 | ||
| 1310 | 9.8 | 1000 | 39.7 | 11.2 | Y2-160M-4 | 15 | 1200 | |
| 19.6 | 2000 | 38.7 | 17.8 | Y2-180L-4 | 22 | 1250 | ||
| 29.4 | 3000 | 37.9 | 24.5 | Y2-200L-4 | 30 | 1305 | ||
| 39.2 | 4000 | 37.3 | 31.3 | Y2-225S-4 | 37 | 1366 | ||
| 49 | 5000 | 36.7 | 38.3 | Y2-225M-4 | 45 | 1405 | ||
| 58.8 | 6000 | 36.1 | 45.5 | Y2-250M-4 | 55 | 1475 | ||
| 68.6 | 7000 | 35.5 | 52.7 | Y2-280S-4 | 75 | 1610 | ||
| 78.4 | 8000 | 34.9 | 60.4 | Y2-280S-4 | 75 | 1610 | ||
| 1450 | 9.8 | 1000 | 44.6 | 12.1 | Y2-160L-4 | 15 | 1215 | |
| 19.6 | 2000 | 43.6 | 20.0 | Y2-200L-4 | 30 | 1300 | ||
| 29.4 | 3000 | 42.8 | 27.5 | Y2-225S-4 | 37 | 1355 | ||
| 39.2 | 4000 | 42.2 | 35.6 | Y2-225M-4 | 45 | 1400 | ||
| 49 | 5000 | 41.6 | 43.4 | Y2-250M-4 | 55 | 1469 | ||
| 58.8 | 6000 | 41.0 | 51.4 | Y2-280S-4 | 75 | 1606 | ||
| 68.6 | 7000 | 40.5 | 59.5 | Y2-280S-4 | 75 | 1606 | ||
| 78.4 | 8000 | 40.0 | 67.7 | Y2-280S-4 | 75 | 1606 | ||
| 88.2 | 9000 | 39.2 | 75.9 | Y2-280M-4 | 90 | 1711 | ||
| 98 | 10000 | 38.0 | 85.0 | Y2-315S-4 | 110 | 2040 | ||
| Model | Speed(n) | △P | flow(Q) | shaft power | motor | weight | ||
| r/min | kPa | mmH2O | m3/min | kW | model | kW | kg | |
| RH20053 | 980 | 9.8 | 1000 | 28.7 | 8.2 | Y2-160L-6 | 11 | 1117 |
| 19.6 | 2000 | 27.7 | 12.6 | Y2-180L-6 | 15 | 1170 | ||
| 29.4 | 3000 | 26.9 | 17.0 | Y2-200L1-6 | 18.5 | 1190 | ||
| 39.2 | 4000 | 26.3 | 21.7 | Y2-225M-6 | 30 | 1270 | ||
| 49 | 5000 | 25.7 | 26.4 | Y2-225M-6 | 30 | 1270 | ||
| 58.8 | 6000 | 25.1 | 32.2 | Y2-250M-6 | 37 | 1470 | ||
| 68.6 | 7000 | 24.5 | 38.0 | Y2-280S-6 | 45 | 1646 | ||
| 78.4 | 8000 | 24.1 | 43.3 | Y2-280M-6 | 55 | 1666 | ||
| 88.2 | 9000 | 23.3 | 48.5 | Y2-280M-6 | 55 | 1666 | ||
| 98 | 10000 | 22.5 | 53.7 | Y2-315S-6 | 75 | 1829 | ||
| 1100 | 9.8 | 1000 | 32.7 | 9.3 | Y2-160M-4 | 11 | 1127 | |
| 19.6 | 2000 | 31.7 | 14.4 | Y2-180M-4 | 18.5 | 1226 | ||
| 29.4 | 3000 | 30.9 | 19.8 | Y2-200L-4 | 30 | 1300 | ||
| 39.2 | 4000 | 30.3 | 25.2 | Y2-200L-4 | 30 | 1300 | ||
| 49 | 5000 | 29.7 | 30.7 | Y2-225S-4 | 37 | 1360 | ||
| 58.8 | 6000 | 29.1 | 36.2 | Y2-225M-4 | 45 | 1400 | ||
| 68.6 | 7000 | 28.5 | 41.8 | Y2-250M-4 | 55 | 1469 | ||
| 78.4 | 8000 | 27.9 | 47.6 | Y2-250M-4 | 55 | 1469 | ||
| 1200 | 9.8 | 1000 | 36.1 | 10.4 | Y2-160L-4 | 15 | 1197 | |
| 19.6 | 2000 | 35.1 | 16.2 | Y2-180M-4 | 18.5 | 1229 | ||
| 29.4 | 3000 | 34.3 | 22.2 | Y2-200L-4 | 30 | 1303 | ||
| 39.2 | 4000 | 33.7 | 28.3 | Y2-225S-4 | 37 | 1363 | ||
| 49 | 5000 | 33.1 | 34.5 | Y2-225M-4 | 45 | 1403 | ||
| 58.8 | 6000 | 32.5 | 40.7 | Y2-225M-4 | 45 | 1403 | ||
| 68.6 | 7000 | 31.9 | 47.0 | Y2-250M-4 | 55 | 1472 | ||
| 78.4 | 8000 | 31.3 | 53.5 | Y2-280S-4 | 75 | 1607 | ||
| 1310 | 9.8 | 1000 | 39.7 | 11.2 | Y2-160M-4 | 15 | 1200 | |
| 19.6 | 2000 | 38.7 | 17.8 | Y2-180L-4 | 22 | 1250 | ||
| 29.4 | 3000 | 37.9 | 24.5 | Y2-200L-4 | 30 | 1305 | ||
| 39.2 | 4000 | 37.3 | 31.3 | Y2-225S-4 | 37 | 1366 | ||
| 49 | 5000 | 36.7 | 38.3 | Y2-225M-4 | 45 | 1405 | ||
| 58.8 | 6000 | 36.1 | 45.5 | Y2-250M-4 | 55 | 1475 | ||
| 68.6 | 7000 | 35.5 | 52.7 | Y2-280S-4 | 75 | 1610 | ||
| 78.4 | 8000 | 34.9 | 60.4 | Y2-280S-4 | 75 | 1610 | ||
| 1450 | 9.8 | 1000 | 44.6 | 12.1 | Y2-160L-4 | 15 | 1215 | |
| 19.6 | 2000 | 43.6 | 20.0 | Y2-200L-4 | 30 | 1300 | ||
| 29.4 | 3000 | 42.8 | 27.5 | Y2-225S-4 | 37 | 1355 | ||
| 39.2 | 4000 | 42.2 | 35.6 | Y2-225M-4 | 45 | 1400 | ||
| 49 | 5000 | 41.6 | 43.4 | Y2-250M-4 | 55 | 1469 | ||
| 58.8 | 6000 | 41.0 | 51.4 | Y2-280S-4 | 75 | 1606 | ||
| 68.6 | 7000 | 40.5 | 59.5 | Y2-280S-4 | 75 | 1606 | ||
| 78.4 | 8000 | 40.0 | 67.7 | Y2-280S-4 | 75 | 1606 | ||
| 88.2 | 9000 | 39.2 | 75.9 | Y2-280M-4 | 90 | 1711 | ||
| 98 | 10000 | 38.0 | 85.0 | Y2-315S-4 | 110 | 2040 | ||
With our loaded working experience and thoughtful products and services, we've got been acknowledged as a reputable supplier for 400W Dereike Side Channel Vacuum Pump for Fish Farming Pneumatic Conveying Systems. We have strong technological development strength, absorb international cutting-edge high-tech technologies, recruit top talents in the industry, and we take meeting the needs of customers as our responsibility. They trust us and always give repetitive orders.
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