| 规 格：DN20-500 |
型 号：YFWA48 |
数 量：1200 |
| 品 牌：永一 |
包 装：木箱 |
价 格：面议 |
YFWA48系列高温蒸汽安全阀永一美标安全阀
用途:适用于动力锅炉、裂解炉、直流锅炉、再热器及其他设备管道作超
压�；�(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《锅炉和压力容器规范》第1卷动力锅炉要求(Perfor
mance: YFSH meets
the requirements of YFA48SH Boiler and pressure Vessel Code,Section I，power Boilers)。
●特点:o 采用背压套来调节回座压力，以达到极小的启闭压差(Features
Adjusting back
Seat pressure with back pressure Jacket,to arrive minimum Blowdown)。
0 高性能高温材料作弹性阀材料，以保证高温下的密封性(High
performance and
temperature material are used for valve to ensure its tightness in high
temperature)。
o密封付表面堆焊钴基硬质合金，以防护高温蒸汽的气蚀(Tightn-
ess body is faced
with stellite,to prevent from eroding of high temperature gas)。
o一定的热态测试，使安全阀更接近工况条件(Tested under hot position and make the safety
valve approach to service condition)。
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