ASTM Specs Class 1 & Class 2 Gates
Class 1-External Roller Design:
Horizontal top and bottom steel pipe members to be 2.375 in. OD Vertical and internal members, 1.900 in. O.D. in compliance with Gate frame to be fabricated by welding, vertical and horizontal members installed no greater than 8 ft. apart. Welded joints are to be protected by applying zinc-rich paint in accordance with ASTM Practice A780. Gates designed to open or close by applying an initial pull force no greater 40 lbs. Match chain link fabric to that of the fence system. Positive locking pressed steel latch, galvanized after fabrication. Galvanized steel drop bars provided with double gates. Gateposts, 4.000 in. OD schedule 40 pipe per ASTM F1083. Provide safety protective guards for the top and bottom external rollers following ASTM F1184 guidelines.
Class 2-Internal Roller Design:
Gate frame fabricated by welding, vertical and horizontal members installed no greater than 8 ft. apart. Class 2 cantilever slide gates to comply with the performance deflection criteria listed in ASTM F1184.
Gates designed to open or close by applying an initial pull force no greater than 40 lbs. Internal truck assemblies designed to handle the forces required for gate size opening and height. Match chain link fabric to that of the fence system. Gateposts, 4.000 in. O.D. schedule 40 pipe per ASTM F1083.
a. Steel Pipe Frame Design: Match the specification of Class 1 cantilever slide gate. Securely bolt an extruded aluminum enclosed track to the top horizontal member that is designed to accommodate internal roller assemblies.
b. Aluminum Frame Design: Aluminum rectangular members of various shapes and wall thickness per manufacturers designed for gate opening and height. Top horizontal member to be one-piece extruded section having an integral internal track to accommodate truck assemblies.