YFWA48系列高溫蒸汽安全閥永一美標安全閥

用途:適用于動力鍋爐、裂解爐、直流鍋爐、再熱器及其他設備管道作超

壓保護(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:o 采用背壓套來調節回座壓力，以達到極小的啟閉壓差(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合金，以防護高溫蒸汽的氣蝕(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)。