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BWA42Y型保溫波紋管背壓平(ping)衡(heng)全(quan)啟式(shi)安全(quan)閥 Insulation back pressre balanced bellows flliftype safetyvalve
BWA42型安(an)(an)全(quan)(quan)(quan)閥(fa)用作(zuo)聚脂、乙烯(xi)及(ji)尿素等裝置,安(an)(an)全(quan)(quan)(quan)閥(fa)配備(bei)保溫夾套,蒸汽吹掃接頭,確(que)保系統安(an)(an)全(quan)(quan)(quan)運(yun)行(xing)。 BWA42 type valve used polyester, ethylene and urea and other devices equipped wih a safety vave insulaion jacket, steam purg fiigs, ensuring he sate operation of the systerm.