用途：
用來輸送溫度≤150℃、粘度3-760cSt、不含固體顆粒、無腐蝕性、具有潤滑性能的介質(zhì)。
適用壓力范圍：0.6-2.5Mpa;
適用流量范圍:0.6-123m3/h。
主要應(yīng)用于燃油輸送、液壓工程、船舶工程，石化及其他工業(yè)。
應(yīng)用范圍：
1、介質(zhì)為直線連續(xù)輸送、無攪拌、無脈動。
2、振動小，噪音低。
3、壓力高、效率高。
4、結(jié)構(gòu)簡單、拆裝方便。
5、體積小，重量輕。
6、磨損輕微，壽命長。
結(jié)構(gòu)形式：
一般采用機械密封。泵通過爪型聯(lián)軸器由電動機驅(qū)動。從主軸外伸端向泵年，為順時針旋轉(zhuǎn)。
材 質(zhì)：
主、從螺桿16MnCrS5,40Cr,45,38CrMoALA
泵體：HT200,QT450-10,ZCuSn10Pl,ZG270-500
3G型通用螺桿泵按泵的用途分類共分為5個系列
| 系列代號 | 主要用途 | 性能范圍 | |
| 流量 m3/h | 壓力 MPa | ||
| 3G | 輸送3-20oE潤滑油, 溫度≤80℃,Lub oil visc3-20oE;temp≤80℃ | 0.6-570 | 2.5 |
| 3GR | 輸送3-50oE重質(zhì)燃油， 溫度≤120℃,Heavy feul lil visc3-50oE;temp≤120℃ | 0.6-570 | 2.5 |
| 3GR | 輸送1.2-5oE輕質(zhì)燃油, 溫度≤120℃,Light feul oil visc1.2-5oE;temp≤120℃ | 0.6-570 | 1.6 |
| 3GW | 輸送高溫加熱燃油, 溫度≤150℃,High temp feul heated oil;temp≤150℃ | 0.6-363 | 1.6 |
| 3GN | 輸送100oE高粘度油料, 溫度≤80℃,High visc oil 100oE;temp≤80℃ | 0.6-636 | 2.5 |
● 3G型三螺桿泵性能參數(shù)表
| 型號 | 排出壓力 | 流量 Q | 轉(zhuǎn)速n | 必需汽蝕余量 rm | 效率η % | 電動機 | ||
| m3/h | L/min | 功率kw | 型號 | |||||
| 25×4-46 | 1.0 | 0.8 | 13 | 1450 | 4 | 62 | 0.75 | Y802-4 |
| 2.5 | 0.6 | 10 | 60.6 | 1.5 | Y90L-4 | |||
| 1.0 | 2.0 | 33 | 2900 | 4.5 | 59.4 | 1.5 | Y90S-2 | |
| 2.5 | 1.6 | 26 | 69 | 3 | Y100L-2 | |||
| 30×4-46 | 1.0 | 1.6 | 26 | 1450 | 4.5 | 63.5 | 1.1 | Y90S-4 |
| 2.5 | 1.2 | 20 | 61 | 2.2 | Y100L1-4 | |||
| 1.0 | 3.6 | 60 | 2900 | 5 | 60 | 2.2 | Y90L-2 | |
| 2.5 | 3.2 | 53 | 69 | 4 | Y112M-2 | |||
| 36×4-46 | 1.0 | 2.8 | 46 | 1450 | 4.5 | 66 | 2.2 | Y100L1-4 |
| 2.5 | 2.4 | 40 | 66.5 | 4 | Y112M-4 | |||
| 1.0 | 6.5 | 108 | 2900 | 5 | 60.5 | 4 | Y112M-2 | |
| 2.5 | 6 | 100 | 72 | 7.5 | Y132S2-2 | |||
| 42×4-46 | 1.0 | 4.8 | 80 | 1450 | 5 | 62 | 4 | Y112M-4 |
| 2.5 | 4.2 | 70 | 73 | 5.5 | Y132S1-4 | |||
| 1.0 | 10.5 | 175 | 2900 | 5.5 | 61 | 5.5 | Y132S1-2 | |
| 2.5 | 10 | 166 | 72 | 15 | Y160M2-2 | |||
| 45×4-46 | 1.0 | 6.3 | 106 | 1450 | 5 | 70 | 3 | Y100L2-4 |
| 2.5 | 5.9 | 99 | 74 | 7.5 | Y132M-4 | |||
| 1.0 | 13.5 | 225 | 2900 | 5.5 | 60 | 7.5 | Y132S2-2 | |
| 2.5 | 13 | 217 | 75 | 15 | Y160M2-2 | |||
| 60×4-46 | 1.0 | 15.5 | 255 | 1450 | 5 | 71.3 | 11 | Y160M-4 |
| 2.5 | 14.5 | 245 | 74 | 15 | Y160L-4 | |||
| 1.0 | 32 | 533 | 2900 | 5.5 | 63 | 18.5 | Y160L-2 | |
| 2.5 | 31.5 | 525 | 77 | 37 | Y200L2-2 | |||
| 70×2-46 | 0.6 | 24 | 400 | 1450 | 5 | 71 | 7.5 | Y132M-4 |
| 1.0 | 23.5 | 390 | 75 | 11 | Y160M-4 | |||
| 1.6 | 22.5 | 370 | 76 | 15 | Y160L-4 | |||
| 70×4-46 | 1.0 | 24.5 | 408 | 1450 | 5 | 72.5 | 18.5 | Y180M-4 |
| 2.5 | 23.5 | 392 | 79 | 30 | Y200L-4 | |||
| 80×2-46 | 0.6 | 36.5 | 608 | 1450 | 5 | 72 | 11 | Y160M-4 |
| 1.0 | 35 | 594 | 75.5 | 18.5 | Y180M-4 | |||
| 1.6 | 34.5 | 575 | 76.5 | 22 | Y180L-4 | |||
| 80×4-46 | 1.0 | 37 | 617 | 1450 | 5.5 | 72 | 30 | Y200L-4 |
| 2.5 | 35 | 590 | 78.1 | 45 | Y225M-4 | |||
| 100×2-46 | 0.6 | 72.5 | 1208 | 1450 | 5 | 73 | 22 | Y180L-4 |
| 1.0 | 71 | 1183 | 77 | 37 | Y225S-4 | |||
| 1.6 | 60.5 | 1158 | 79 | 45 | Y225M-4 | |||
| 100×4-46 | 1.0 | 72.5 | 1208 | 1450 | 5.5 | 73 | 55 | Y250M-4 |
| 2.5 | 70 | 1165 | 78.5 | 75 | Y280S-4 | |||
| S100×3-27 | 0.6 | 72 | 1196 | 1450 | 6 | 62 | 22 | Y180L-4 |
| 1.6 | 70 | 1160 | 72 | 55 | Y250M-4 | |||
| 2.5 | 69 | 1145 | 74 | 75 | Y280S-4 | |||
| S120×3-27 | 0.8 | 123 | 2055 | 1450 | 6 | 74.5 | 55 | Y250M-4 |
| 1.5 | 120 | 2010 | 76 | 90 | Y280M-4 | |||
| 2.5 | 115 | 1920 | 78.5 | 132 | Y315M-4 | |||
