Non-sparking materials?
Non-sparking materials?
(OP)
Hello,
I have also posted this in the Pump engineering forum.
Would somebody be able to tell me if ductile iron and stainless steels are considered to be "non-sparking" materials? Our pump data sheet calls for non-sparking materials but the listed materials are A 536 (ductile iron) and 17-4 PH stainless steel.
I appreciate any help you can provide!
I have also posted this in the Pump engineering forum.
Would somebody be able to tell me if ductile iron and stainless steels are considered to be "non-sparking" materials? Our pump data sheet calls for non-sparking materials but the listed materials are A 536 (ductile iron) and 17-4 PH stainless steel.
I appreciate any help you can provide!





RE: Non-sparking materials?
RE: Non-sparking materials?
Thank you for your response. The pumps were requested to have all non-sparking materials for the process-wetted components. The rotor and casing were specified to be ductile iron and the shaft to be 1045 steel.
The vendor came back with A 216 (WCB) rotor and A 105 casing with 17-4 PH shaft. I have been just told that the shaft will not see the process fluid, so I guess it's just the rotor and the casing which need to be non-sparking. I do not know what the materials are of the other components.
I would have thought that any iron based materials would NOT be considered as non-sparking, therefore all these listed materials would not be suitable (ductile iron, 1045 steel, carbon steel, and 17-4 PH steel). Can ductile iron be considered non-sparking, if I do not know what the materials of construction of the other components are?
RE: Non-sparking materials?
RE: Non-sparking materials?
RE: Non-sparking materials?
'Sparks' are produced from friction, ejection of loosely-held electrons. Surely, that includes metals.
Which surfaces need to be spark-proof? For overhead crane-lifts calling for similar requirements, epoxy paints can work well.
Good luck!
William Gunnar
http://www.IndustrialCoatingsWorld.com