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A ''DSP coupling'' is a self-sealing symmetrical coupling which is secured by inter-connecting two couplings together. It is closed by turning the locking ring on the trignaular part of the opposed DSP coupling. Extra closure can be applied by locking the connection with couplings wrench. The DSP coupling locking principle is similar to that of the guillemin coupling. However, there are differences to the preformed serration on the locking ring and the design of the lugs. The locking ring of DSP couplings can be turned up to 45° 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「DSP coupling」の詳細全文を読む スポンサード リンク
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