"盘管进入接头" can be translated as "coil pipe entering connector" or more contextually specific terms like "coil inlet connector" (if referring to the entry point of the coil into a connector) or "coil connection fitting (for entry)" depending on the exact context and technical usage.
In engineering or HVAC (heating, ventilation, and air conditioning) contexts, a common and concise translation might be:
Coil inlet fitting (if it's the specific fitting where the coil enters)
Coil connection connector (for inlet) (to emphasize both connection and entry)
However, "coil pipe entering connector" directly conveys the idea of the connector where the coil pipe enters. Choose the most appropriate term based on the specific technical document or context.