| | 品牌：德耐尔 | | 材质：铸铁 | | 驱动方式：电动 | |
| | 功率：11 kW | | 外形尺寸：1542 * 490 * 1147 mm | | 型号：DS400 | |
| | 重量（kg）：610 kg | | 转速（rpm）：2900 rpm | | | |
等螺距真空泵
Constant pitch vacuum pump
国家专利；
national patents;
粗抽效率高，可以稳定运行于粗真空工况，扩展了工作压力范围；
The rough pumping efficiency is high, and it can run stably in the rough vacuum working condition, which expands the working pressure range;
屋内压缩，泵温高，适宜抽速易凝结、易结晶的气体；
Compression in the house, high pump temperature, suitable for pumping gas that is easy to condense and easy to crystallize;
转子间隙大，固体粉尘与冷凝液不易在转子间和泵腔内沉积。
The rotor gap is large, and solid dust and condensate are not easily deposited between the rotors and in the pump chamber.
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