2、YFNJ系列保温夹套安全阀永一美标安全阀
用途及特点
1、 用作聚酯、乙烯、沥青及尿素化肥等装置中价质需要保温的压力安全泄压阀。
2、 对进、进口法兰在内的阀体均进行保温，因而保温效果好；特殊需要时可以增加蒸汽冲洗功能
3、 平衡波纹管式结构，变动背压力不影响安全阀的整定压力，且波纹管对弹簧等阀盖内的零件起到保护价质侵蚀作用。
4、 内件（阀瓣、阀座）标准材料均为奥氏体不锈钢，密封面堆焊stellite硬质合金。
5、 特殊需要时内件可提供尿素级316L、双相不锈钢0cr25Ni6Mo 3CuN、00Cr35Ni6Mo 2N及超级双相不锈钢F5 （NUS S31803）（UNS S32750）、F55（UNS S32760）
Application & Features,
1. It's serviced in the circumslancc where the heat preservation of fluid is needed, such as equipment of polyester, ethy-lene, pitch, urea, etc.
2. Body including iniet and outlet flanges is heat preserved, vo the effect is very well the function of vapor flushing be ad,ded, if needed.
3. Balaned bellows construction protects set pressure from being affected by variable back pressure, and the parts in bo.
mmet, such as spring, form being corroded.
4. Trim(nozzle and disc) is normally made with austenitic stainless steel, and faced with stellite alloy.
5. To meet special service; the material of trim can be 316LN; OCr25Ni6Mo3CUN, 00Cr25Ni6Mo2N F51(NUS S31803),F53(UNS S32750㎡F55(UNS S32760) |
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