| 摘要 |
The heating system has an inner feed pipe (11) projecting downwards from the housing (10) and having a hose mounting (18-20) below and a pipe sealing and fixing mount at the top end of the shaft (12). The thickness of the hollow shaft tapers conically inwards and steadily towards the mounting in the pipe, and the transitions between vertical and bent shaft parts are harmoniously rounded and curved. The axial interval between the shaft and radiator screw fitting is itself internally threaded and has an inside sealing cone (15) and corresponds to standard valve intervals. The outer pipe connection (14a,15a) faces the radiator or distributor connection (14,15) at right angles. The supply is brought in by a single externally visible line despite the use of a two-pipe system.
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