Rotary vane pumps fit many general industrial uses 旋片泵适合很多通用工业场景
Oil-sealed rotary vane pumps are widely used in packaging, thermoforming, electronics, vacuum drying and general vacuum systems. 油封旋片泵广泛用于包装、吸塑、电子、真空干燥和通用真空系统。
They are practical when the buyer needs stable supply, spare parts and predictable maintenance cost. 当客户重视供应稳定、备件支持和维护成本可控时，旋片泵通常更容易落地。
Dry screw pumps are selected by process conditions 螺杆干泵更依赖工况判断
Dry screw pumps are considered when the process cannot accept oil vapor or when the pumped gas requires a dry running design. 当工艺不能接受油雾，或抽除气体需要干式运行结构时，可以考虑螺杆干泵。
Before choosing a dry pump, confirm gas composition, vapor, dust, temperature and cleaning requirements. 选择干泵前，应确认气体成分、水汽、粉尘、温度和清洗维护要求。
Do not select only by pumping speed 不要只按抽速选泵
Two pumps with similar pumping speed may have very different maintenance cost, final pressure, process tolerance and spare parts availability. 抽速接近的两种泵，维护成本、极限压力、工艺适应性和备件供应可能完全不同。
Send the application and working conditions before quotation so the pump type can be checked first. 报价前建议先发送应用和工况，让工程师先确认泵型方向。