踏板和住房由铸铁强度和耐久性的保护由一个强大的铸铝屏蔽不同寻常AirVal O.E.M.可用模型在特殊订单画预警橙色单3/4”核不扩散条约-14螺纹管道入口标准重责任脚踏开关功能是anti-trip踏板机制,有助于防止偶然的冲动通过无意踩脚踏板开关操作要求门闩撞击杆被释放之前压抑的脚踏板作为内联脚压力应用于舌撞击杆位于后方的脚踏板平稳旅行杠杆释放和踏板抑郁运动的良好结果operation Dual treadle return springs and latching mechanism -Anti-skid rubber feet and 3 holes for rigid mounting to floor or equipment -All Models have a neoprene Cover Gasket plus O-Rings on the Actuating shaft and separate ground screw Treadle and housing constructed from cast iron for strength and durability Protected by a strong cast aluminum shield Special AirVal models available to the O.E.M. on special order Painted Alert Orange Single 3/4"-14 N.P.T. threaded conduit entry is standard Oversize "O" and "OX" Shield models accept oversized safety shoes and metatarsal foot guards. The "OX" Shield has an additional 3/4" (19.1 mm) opening height as compared to the "O" shield Special Dual 1/2"-14 N.P.T. threaded conduit entry and metric sizes available to the O.E.M. on special order Special Twin & Triple models available to the O.E.M. no special order