求翻译：金牛JNJ系列保温夹套安全阀用于石化、化工等行业中聚酯、乙烯、炼重油、尿素化肥生产等介质需保温的场合，起安全泄压作用。阀门的进口法兰及阀体都进行保温，所以保温效果好。波纹管平衡结构，消除背压对安全阀开启压力的影响，使弹簧等零件不易受到介质的侵蚀。备有冲洗孔，可清除阀门内部的污垢。材料可根据使用介质、工况选用。法兰标准按ANSI B16.5或用户指定的标准。是什么意思？

Taurus the jnj series insulation jacket safety valve for the media need insulation of polyester, vinyl, refining, heavy oil, urea fertilizer production in the petrochemical, chemical and other industries occasions, from the safety relief role. The valve inlet flange and valve insulation, the insulat

Golden cow JNJ series keep-warm jacket for use in petrochemical, chemical safety valve in the industry such as polyester, vinyl, chain oil, urea fertilizer production, and other media need to be kept warm, and the occasions of a security. The valve inlet flange and valve body is warm, so insulated.

The golden cow JNJ series heat preservation clamp cover safety valve uses in petrifying, professions and so on in chemical industry the polyester, the ethylene, builds up the situation which medium and so on heavy oil, urea chemical fertilizer production must keep warm, plays the security decompress

Taurus JNJ series steam jacket valve used in petrochemical, chemical industry, such as polyester, vinyl, refining and fuel oil and urea fertilizer production media you want, such as thermal insulation, safety pressure relief. Imported flanges of valves and valve body for thermal insulation, thermal

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