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L系列羅茨鼓風機是一種高效節能羅茨風機，它是國家推廣的第九批節能產品，系容積運轉式鼓風機。它利用一對漸開線腰形風葉呈同步回轉輸送氣體，當送風阻力變化時，流量保持不變。L系列羅茨風機零部件通過性強、標準化程度高、結構合理、效率高、使用穩妥可靠。用戶選型、安裝維修及配備品備件方便。其性能覆蓋面廣，流量從0.37-1000m3/min，壓升最高可達98KPa。
L系列羅茨風機主要由軸、葉輪、軸承、同步齒輪、聯軸器、軸套這六大部分組成。
葉輪：葉輪型線采用復合線型，容積利用系數高，嚙合完美，泄漏少，效率高，流量大，噪音低
軸承：近聯軸器端作為定位端選用3000型雙列向心球面滾子軸承。近齒輪端作為自由端選用32000型單列向心短圓柱滾子軸承以適應熱臌脹時產生的摩擦。
| 風 機 型 號 | 轉 速 | 升 壓 △P | 進口流量m3/min | 配 套 電 機 | ||
| r/min | KPa | mmH20 | 型 號 | 功率KW | ||
| L11LD | 1450 | 9.8 | 1000 | 0.62 | Y801-4 | 0.55 |
| 19.6 | 2000 | 0.46 | Y802-4 | 0.75 | ||
| 29.4 | 3000 | 0.33 | Y90S-4 | 1.1 | ||
| 39.2 | 4000 | 0.21 | Y90L-4 | 1.5 | ||
| 2950 | 9.8 | 1000 | 1.86 | Y801-2 | 0.75 | |
| 19.6 | 2000 | 1.69 | Y90S-2 | 1.5 | ||
| L13LD | 1450 | 9.8 | 1000 | 1.09 | Y801-4 | 0.55 |
| 19.6 | 2000 | 0.9 | Y90S-4 | 1.1 | ||
| 29.4 | 3000 | 0.75 | Y90L-4 | 1.5 | ||
| 39.2 | 4000 | 0.6 | Y90L-4 | 1.5 | ||
| 2950 | 9.8 | 1000 | 2.87 | Y802-2 | 1.1 | |
| 19.6 | 2000 | 2.68 | Y90S-2 | 1.5 | ||
| L14LD | 1450 | 9.8 | 1000 | 1.47 | Y802-4 | 0.75 |
| 19.6 | 2000 | 1.26 | Y90L-4 | 1.5 | ||
| 29.4 | 3000 | 1.08 | Y90L-4 | 1.5 | ||
| 39.2 | 4000 | 0.93 | Y100L1-4 | 2.2 | ||
| 49 | 5000 | 0.79 | Y100L2-4 | 3 | ||
| 2950 | 9.8 | 1000 | 3.76 | Y90S-2 | 1.5 | |
| 19.6 | 2000 | 3.54 | Y90L-2 | 2.2 | ||
| 29.4 | 3000 | 3.37 | Y100L-2 | 3 | ||
| L21LD | 1450 | 9.8 | 1000 | 2.23 | Y90S-4 | 1.1 |
| 19.6 | 2000 | 2.04 | Y90L-4 | 1.5 | ||
| 29.4 | 3000 | 1.83 | Y100L1-4 | 2.2 | ||
| 39.2 | 4000 | 1.64 | Y100L2-4 | 3 | ||
| 49 | 5000 | 1.46 | Y112M-4 | 4 | ||
| 2950 | 9.8 | 1000 | 5.77 | Y90S-2 | 1.5 | |
| 19.6 | 2000 | 5.48 | Y100L-2 | 3 | ||
| 29.4 | 3000 | 5.26 | Y112M-2 | 4 | ||
| L22LD | 1450 | 9.8 | 1000 | 3.3 | Y90L-4 | 1.5 |
| 19.6 | 2000 | 2.98 | Y100L1-4 | 2.2 | ||
| 29.4 | 3000 | 2.73 | Y100L2-4 | 3 | ||
| 39.2 | 4000 | 2.51 | Y112M-4 | 4 | ||
| 49 | 5000 | 2.3 | Y132S-4 | 5.5 | ||
| 2950 | 9.8 | 1000 | 7.97 | Y90L-2 | 4 | |
| 19.6 | 2000 | 7.66 | Y112M-2 | 4 | ||
| 29.4 | 3000 | 7.4 | Y132S1-2 | 5.5 | ||
| L23LD | 1450 | 9.8 | 1000 | 4.49 | Y90L-4 | 1.5 |
| 19.6 | 2000 | 4.32 | Y100L2-4 | 3 | ||
| 29.4 | 3000 | 4.03 | Y112M-4 | 4 | ||
| 39.2 | 4000 | 3.76 | Y132S-4 | 5.5 | ||
| 49 | 5000 | 3.53 | Y132M-4 | 7.5 | ||
| 2950 | 9.8 | 1000 | 10.9 | Y100L-2 | 3 | |
| 19.6 | 2000 | 10.8 | Y132S1-2 | 5.5 | ||
| 29.4 | 3000 | 10.5 | Y132S2-2 | 7.5 | ||
| L32LD | 1450 | 9.8 | 1000 | 7.92 | Y100L1-4 | 2.2 |
| 19.6 | 2000 | 7.3 | Y132S-4 | 5.5 | ||
| 29.4 | 3000 | 6.81 | Y132M-4 | 7.5 | ||
| 39.2 | 4000 | 6.38 | Y160M-4 | 11 | ||
| 49 | 5000 | 5.99 | Y160M-4 | 11 | ||
| L33LD | 1450 | 9.8 | 1000 | 10.8 | Y100L2-4 | 3 |
| 19.6 | 2000 | 10.1 | Y132S-4 | 5.5 | ||
| 29.4 | 3000 | 9.54 | Y160M-4 | 11 | ||
| 39.2 | 4000 | 9.04 | Y160M-4 | 11 | ||
| 49 | 5000 | 8.57 | Y160L-4 | 15 | ||
| L41LD | 980 | 9.8 | 1000 | 6.59 | Y112M-6 | 2.2 |
| 19.6 | 2000 | 5.77 | Y132M1-6 | 4 | ||
| 29.4 | 3000 | 5.11 | Y132M2-6 | 5.5 | ||
| 39.2 | 4000 | 4.52 | Y160M-6 | 7.5 | ||
| 49 | 5000 | 3.97 | Y160L-6 | 11 | ||
| 1450 | 9.8 | 1000 | 11 | Y100L2-4 | 3 | |
| 19.6 | 2000 | 10.2 | Y132S-4 | 5.5 | ||
| 29.4 | 3000 | 9.52 | Y160M-4 | 11 | ||
| 39.2 | 4000 | 8.93 | Y160M-4 | 11 | ||
| 49 | 5000 | 8.36 | Y160L-4 | 15 | ||
| 58.8 | 6000 | 7.84 | Y180M-4 | 18.5 | ||
| L42LD | 980 | 9.8 | 1000 | 10.5 | Y132S-6 | 3 |
| 19.6 | 2000 | 9.52 | Y132M2-6 | 5.5 | ||
| 29.4 | 3000 | 8.75 | Y160L-6 | 11 | ||
| 39.2 | 4000 | 8.05 | Y160L-6 | 11 | ||
| 49 | 5000 | 7.43 | Y180L-6 | 15 | ||
| 58.8 | 6000 | 6.82 | Y200L1-6 | 18.5 | ||
|
|
9.8 | 1000 | 17.1 | Y112M-4 | 4 | |
| 19.6 | 2000 | 16.1 | Y160M-4 | 11 | ||
