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由上海市劳动保护科学研究所设计、江苏江都高频瓷厂研制的S ZQ—1/Ⅱ型双阻火于式回火防止器,4月7日在扬州市通过鉴定。这种回火防止器,安装在乙炔及其他可燃气体的输气管路和瓶装可燃气休钢瓶上,既能阻止回火,又能阻止泄压时向环境中释放的明火。据上海自行车厂等试用单位反映,该产品阻火性能好,流量大,气阻小,是气焊气割、火焰淬火、金属喷涂的较为理想的安全装
Design by Shanghai Institute of Labor Protection, Jiangsu Jiangdu high frequency porcelain factory developed S ZQ-1 / Ⅱ double-fire fire-type tempering preventer, April 7 in Yangzhou passed the appraisal. This type of backfire preventer, mounted on gas pipelines for acetylene and other combustible gases and bottled flammable gas cylinders, prevents both tempering and the release of open flame to the environment when relieving pressure. According to Shanghai Bicycle Factory and other trial units reflect the fire retardant performance, flow, air resistance is small, gas welding gas cutting, flame quenching, metal spraying the ideal safety equipment