| 規 格：DN20-500 |
型 號：YFNJ |
數 量：1200 |
| 品 牌：永一 |
包 裝：木箱 |
價 格：面議 |
YFNJ系列保溫夾套安全閥永一美標安全閥
用途及特點
1、
用作聚酯、乙烯、瀝青及尿素化肥等裝置中價質需要保溫的壓力安全泄壓閥。
2、
對進、進口法蘭在內的閥體均進行保溫，因而保溫效果好；特殊需要時可以增加蒸汽沖洗功能
3、
平衡波紋管式結構，變動背壓力不影響安全閥的整定壓力，且波紋管對彈簧等閥蓋內的零件起到保護價質侵蝕作用。
4、
內件（閥瓣、閥座）標準材料均為奧氏體不銹鋼，密封面堆焊stellite硬質合金。
5、
特殊需要時內件可提供尿素級316L、雙相不銹鋼0cr25Ni6Mo
3CuN、00Cr35Ni6Mo 2N及超級雙相不銹鋼F5 （NUS S31803）（UNS
S32750）、F55（UNS S32760）
Application &
Features,
1. Its 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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