Orange County NC Website
Browse       Search
Performance and finishes • Physical endurance <br />Book Rev. 08/30/17 • Page Rev. 7/31/14 • Technical data manual • • 319 <br />SDI 131-10 (Previously ANSI A250.5) <br />The door is mounted in a test fixture and is rapidly cycled <br />(opened and closed) by an air cylinder, or by an arm connected <br />to an electric motor through a cam mechanism. <br />Cycle Test: The cycle is repeated a minimum of 60 cycles per <br />minute. The closing forces applied to the door. <br />Twist Test: At test intervals prescribed by the test procedure, <br />three corners of the door are clamped in place and the fourth <br />corner is twist tested. <br />Steelcraft doors tested in accordance with SDI 131-10 for <br />extended life cycle. <br />Door Series Cycles Tested <br />L18 10 million <br />T18 250,000 <br />This test simulates an actual door in operation. Steelcraft's L18 <br />honeycomb core door was successfully tested in accordance <br />with SDI 131-10 for 10,000,000 cycles and 21 twist tests <br />conducted at different intervals throughout the cycle test. <br />Products tested: Door Model: L-18 3070 <br />Test Results: After 10,000,000 cycles and 21 twist tests, the <br />L-18 door demonstrated the following: <br />Cycle Test: <br />1. Edge Condition: no visible signs of metal fatigue, cracking, <br />or deformation along edges or channels <br />2. Hardware Preparations: no visible issues <br />3. Core condition: no notable issues <br />4. Panel condition: no de-lamination or weld damage <br />Twist Test: <br />• Initial deflection at 300 lbs = .132" <br />• Initial residual deflection (0 lbs) = .002" <br />• After 10 million cycles max. deflection at 300 lbs = .528" <br />• After 10 million cycles residual deflection (0 lbs) = .0045" <br />ANSI A 250.4 <br />Twist tests <br />The twist test evaluates the door structure and clearly establishes the strength of the bonding or <br />welding of the core material to the panels and the connection of the panels. The twist test is a required <br />part of both ANSI 250.4 and SDI 131-10. <br />The door is placed into a structural steel opening and clamped into place at three corners. The <br />unclamped corner is subjected to a force applied in 30 pound increments until a total of 300 pounds of <br />force is applied. The force is removed in the same 30 pound increments until all of the force is off the <br />door. <br />Measurements are taken at each 30 pound increment and at the 300 pound force. Additional <br />measurements are taken at every 30 pound increment as the force is being removed. Five minutes after <br />the force has been removed, a final reading is taken. This is the residual deflection the door has taken. <br />ANSI 250.4 <br />Door <br />opening <br />Cycles <br />tested Test standard <br />Average Deflection in <br />test 300 lbs load, 1.25" <br />max. See note #2 <br />Residual Deflection at <br />Completion of test <br />(load removed), 0.125" <br />max. See note #2 <br />Total Number <br />of twist tests <br />conducted <br />L18 10 million SDI 131-10 .033"0.01".21 <br />L16 5 million ANSI 250.4 0.76"0.05"103 <br />L14 5 million ANSI 250.4 0.62"0.03"103 <br />B18 3 million ANSI 250.4 0.45"0.01"63 <br />B16 3 million ANSI 250.4 0.75"0.06"63 <br />CE18 2 million ANSI 250.4 1.02"0.125"43 <br />Notes: <br />1. All tests are UL certified <br />2. Maximum deflection shown is the pass/fail criteria in accordance with ANSI A250.4 and SDI 131-10. <br />ANSI A250.4 & SDI 131-10 <br />Twist Test Fixture <br />ANSI A250.4 and SDI 131-10 <br />Twist test fixture <br />Home <br />General InformationFramesDoorsLights and LouversElevationsHurricaneSpecialtyHardwareFire Rated ProductsPerformanceArchitecturalVariationsVariationsTornadoDocuSign Envelope ID: 97A9508F-537F-4A89-96AD-A82F9ABD3708