Material Specifications Housing Ductile Iron conforming to ASTM A536, Grade 65-45-12 Bolts SAE J429, Grade 5, Zinc Electroplated (Standard) Heavy Hex Nuts ASTM A563, Grade A, Zinc Electroplated, Violet Dyed (Standard) Coatings Rust inhibiting paint Color: Orange (Standard) Hot Dipped Zinc Galvanized (Optional) Lubrication Standard Gruvlok Gruvlok Xtreme Gasket Materials Properties as designated in accordance with ASTM D2000 Pre-Lubricated Grade “E” EPDM, Type A C-Style Gasket (Violet color code) -40°F to 150°F (Service Temperature Range) (-40°C to 66°C) Recommended for wet and dry (oil free air) fire protection sprinkler systems. For freezing conditions, Gruvlok Xtreme Lubricant is required. Grade “EP” EPDM Flush Gap Gasket (Green color code) -40°F to 230°F (Service Temperature Range) (-40°C to 110°C) Recommended for wet and dry (oil free air) fire protection sprinkler systems. For freezin
