管路防爆装置 Explosion-proof device for pipelines 回油温度显示表 Thermometer for return oil 开机自动排气功能 Automatic air-exhausting function after startup 油泵反抽回油功能 Return oil back suction of oil pump 加热功率切换功能 Switchover of heating power 隔离式电器控制箱,延长电器使用年限 Isolated electric box for longer services lives of electric appliances 负压系统运转(选购) Negative-pressure system (optional)
RS485通讯功能,实现自动化管理.(选购)
RS485 communication function for automated management (optional) 即时冷却回油关机功能 Instant cooling return oil shut-down function
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