What materials are used for the protective covers of spark-free couplings?
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The coupling protective cover is made of non-sparking materials; what are these materials, and must it be aluminum alloy?
My device is made entirely of aluminum alloy; there are no spark couplings. I hope other sea users can provide more details on this.
Non-ferrous metals all produce no sparks, but aluminum alloy is the cheapest.
Reply to 3# zhouhuihubei: There are standard codes for this, thank you!
Copper alloys can also be used if the cost budget permits~
The coupling passport is an accessory for couplings, and the information related to it can be found in various coupling technical standards, such as JB∕T 9559-2016 Flexible Couplings for Industrial Steam Turbines
Aluminum alloy is generally used; copper is too expensive
Our company uses aluminum alloy for everything; other materials are too expensive
It’s basically all aluminum alloy; the other materials are too expensive