Page 344 - Mechanical Products Installation Handbook IH-1000M
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336 GASKETS NSF-61 Certification
In order to retain the NSF-61 Certification, an NSF 61 Certified lubri- cant must be used for the intended service; for example, LA-CO Indus- tries Lubri-Joint or Dow Corning* No. 7, both offered through GRINNELL Mechanical Products.
• Grade “EN” EPDM Tri-Seal Gaskets, NSF-61 Approved Compound, are designed for use with potable water systems.
• Grade “EHT” EPDM Gaskets, NSF-61 Approved Compound, are designed for use with copper tubing systems.
Gasket Lubricants
To prevent gasket deterioration, use a petroleum-free lubricant for all EPDM and Grade “L” Silicone gaskets. A petroleum-free silicone lubricant should be used for HDPE applications and for low-temperature environments to prevent lubricant freezing.
WARNING
Never use silicone lubricants with Grade “L” silicone gaskets. Failure to select the proper compound could result in product failure, property damage, or serious injury.
• Refer to Technical Data Sheet G610 Gaskets.
