814® Series #1830 Directional Flow Vane Grate

The 814® 18″ x 30″ cast iron directional flow grate is designed for precise water management—simply turn the grate to reverse flow direction as needed. Manufactured in the USA from durable, uncoated ASTM A48 CL35B cast gray iron, this stock item meets TxDOT standard specifications and AASHTO M306-10 requirements. When installed in a rated frame with proper reinforcement, the grate is H-20 traffic rated, delivering exceptional strength, compliance, and long-lasting usability for demanding infrastructure projects.

NOTE: Grate slot total open area is 195 square inches (actual flow must be calculated by a qualified engineer)

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