Our company's business has spread all over the world. We are working hard to become a benchmark enterprise in screw blower vs roots, wine vacuum pump, oil for roots blower industry. We're self-assured to create wonderful achievements while in the potential. We believe that our warm and professional service will bring you pleasant surprises as well as fortune. It not only improves work efficiency, but also effectively guarantees product quality and enhances customers' confidence in our products. All merchandise are manufactured with advanced equipment and strict QC procedures in purchase to assure high-quality.
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 | ||
We guarantee that every RD 40 Sell Well Pneumatic Double Vacuum Membrane Pump for Detergent we create is of the highest quality in terms of design, technology, service, etc., with the utmost attention to detail. Our solutions have national accreditation standards for experienced, premium quality goods, affordable value, was welcomed by people around the globe. We believe that performance is not only reflected in the scale of operation and development speed, but also reflected in the improvement of organizational capabilities, the innovation of management models, and the training of outstanding talents.
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