5、YFWA48系列高溫蒸汽安全閥永一美標(biāo)安全閥
用途:適用于動力鍋爐、裂解爐、直流鍋爐、再熱器及其他設(shè)備管道作超
壓保護(hù)(Application:YFA48SH is serviced for overpres sure protection of power boiler,decomposition boiler,once-through boiler,reheater and other pressure vessel and pipe)。
●性能:符合ASME《鍋爐和壓力容器規(guī)范》第1卷動力鍋爐要求(Perfor
mance: YFSH meets the requirements of YFA48SH Boiler and pressure Vessel Code,Section I,power Boilers)。
●特點(diǎn):o 采用背壓套來調(diào)節(jié)回座壓力,以達(dá)到極小的啟閉壓差(Features
Adjusting back Seat pressure with back pressure Jacket,to arrive minimum Blowdown)。
0 高性能高溫材料作彈性閥材料,以保證高溫下的密封性(High
performance and temperature material are used for valve to ensure its tightness in high temperature)。
o密封付表面堆焊鈷基硬質(zhì)合金,以防護(hù)高溫蒸汽的氣蝕(Tightn-
ess body is faced with stellite,to prevent from eroding of high temperature gas)。
o一定的熱態(tài)測試,使安全閥更接近工況條件(Tested under hot position and make the safety valve approach to service condition)。 |
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