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Gasket for Ductile Iron Pipe Joint

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tiga852

tiga852

Mechanical
Joined
Mar 5, 2012
Messages
3
Location
HK
Anyone enlightens me why in the old days we used Lead Tip gasket for ductile iron pipe joint and nowadays we use EPDM gasket?
 
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Probably because EPDM materials were not an economical option until fairly recently.
 
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