Meets A156.17 Grade 1 requirements for self closing hydrolic hinges, 1,000,000 cycles Meets UL 10C requirements for 180 minute exposure period with hose stream in accordance with NFPA 252 & UL 10C under positive furnace pressure & CAN/ULC S104 & UL 10B under neutral furnace pressure Doors under 100lbs require a set of 2 hydrolic hinges + 1 dummy center hinge, Doors 100 lbs up to 150 lbs may require 3 hydrolic hinges. Heavier doors may require 4. Gauge of material .134" Stainless steel grade 304 Each closing system contains a full set of machine and wood screws ADA listed as meeting requirements of 5 lb maximum opening force Templates: AX40 Template AX45 Template AX50 Template Alrex Brochure
