Specifications include, but are not limited to: Item 0001: Seal, single mechanical, balanced, Chesterton 891 or approved equal. Stationary face = Silicon Carbon Rotating face = Silicon Carbide Springs = Hastelloy “C” “O” Rings = Buna N Rotary holder = 316 SS Sizes = 1” – 3-5/8” Maximum operating pressure = 200 PSI Maximum operating temperature = 150 degrees F Set screws: Hardened Steel (No. 316 s/s) Item 0002: Seal, external, single mechanical, balanced, modified with “L” type seat in stuffing box; John Crane T-1, Chesterton 440, PPC B, or approved equal. Stationary face = Silicon Carbon Rotating face = Silicon Carbide Springs = Hastelloy “C” “O” Rings = Buna N Rotary holder = 316 SS Sizes = 1” – 2-3/4” Maximum operating pressure = 150 PSI Maximum operating temperature = 150 degrees F Set screws: Hardened Steel (No. 316 s/s) Item 0003: Seal, single, split mechanical, balanced; Chesterton 442, PPC 1200S, or approved equal. Stationary face = Silicon Carbon Rotating face = Silicon Carbide Springs = Hastelloy “C” “O” Rings = AFLAS Rotary holder = 316 SS Sizes = 1-1/4” – 7” Maximum operating pressure = 250 PSI Maximum operating temperature = 150 degrees F Set screws: Hardened Steel (No. 316 s/s)