Comparison Between UL 555/UL 555S (U.S. Standard) and GB 15930/GB/T 17428 (Chinese Standard) Standard
UL 555 and UL 555S are U.S. standards for fire dampers and smoke dampers, while GB 15930 and GB/T 17428 are the corresponding Chinese standards. The main differences lie in testing...
Gao Yushan 发布于
ASTM A350 LF2 Flange for Low Temperature Standard
ASTM A350 (ASME SA350) is the standard specification for carbon steel and low alloy steel forged flanges and flanged fittings for low temperature services.
Common use grade is ASTM...
Gao Yushan 发布于
ASTM A105 Flange Specification Standard
ASTM A105 is the standard specification for carbon steel forging flanges.
Standard Scope
ASTM A105 covers forged carbon steel flange and piping components for ambient and higher-t...
Gao Yushan 发布于
Flange 法兰 Flange
法兰的分类
1按化工行业标准分
整体法兰（IF）、螺纹法兰（Th）、板式平焊法兰（PL）、带径对焊法兰（WN）、带颈平焊法兰（SO）、承插焊法兰（SW）、对焊环松套法兰（PJ/SE）、平焊环松套法兰（PJ/RJ）、衬里法兰盖（BL（S））、法兰盖（BL）。
2按石化行业标准分
螺纹法兰（PT）、对焊法兰（WN）、平焊法兰（SO）、承插焊法兰（SW）、松套法兰...
Gao Yushan 发布于