窗帘材料:重型乙烯涂层网,17 × 11编织,0.025“线直径。有安全黄色,红色,蓝色和灰色可供选择。可选30 x 20编织,0.013“螺纹直径可在黑色或灰色。可选12 x 8编织,0.028“螺纹直径可在黑色。密封:Turn-Tite®离心顶部密封。Elvaloy™循环密封底部边缘的地板。轨道:标准的门框轨道是由挤出PVC强度和耐久性。可选钢轨。聚乙烯轨道插入提供额外的抗风和平滑的门操作。驱动系统:手动模式利用一个10,000循环扭转弹簧在滚管,包括下拉手柄和一个保险杠,以防止窗帘过行程。 Powered models operated by a tubular motor with gear head, free-fall brake protection, and rotary limit switches. The motor is contained within the roll tube and drives the tube with an integral key. Electrical Requirements: (for powered models) 120 Volt, 1 ph, 60 Hz standard/220 Volt, 1 ph, 50 Hz available. Control Box: Control box is NEMA 4X enclosure with constant contact rotary cam switch. Seals: Turn-Tite® top seal, polyethylene track inserts, and water resistant Hypalon® bottom seal. Temperature Range: -40° F to 120° F (-40° C to 48° C) Warrnty: Limited 1 year parts and labor, including 90 days for electrical. Rite-Hite Doors also offers an exclusive 1 year money back guarantee Allow fresh air in for comfort and productivity. Enable light to enter the work area. Deter theft and vandalism. Door is a visual barrier and has a foam-filled bottom. Powered models have a constant contact switch for total control of operation.