金属环垫
引用标准
HGJ74-91
JB/T89-94
JB/T79
JB/T82
SH 3403-96
GB 9128.2-88
金属环垫
金属环垫是以裁面形状的八角形,椭圆形、透镜形、双锥形、断面八角形作为法兰连接的密封元件,只要用于高压、高温的设备和管道法兰上。国家标准和石化行业标准规定实用于公称压力2.0-42.0MPa,化工行业标准规定适用于6.3、10、16、20MPa
金属环垫的最高使用温度和硬度值
材料名称
代号 硬度值HB 最高工作温度℃
软铁 O 90 540
08或10 S 120 540
oCr13 410 140 540
ooCr17Ni14Mo2 316L 150 800
oCr18Ni10 Ti 321 160 870
oCr17Ni12Mo2 316 160 800
oCr18Ni9 304 160 800
ooCr19Ni10 304L 150 800
5Cr-0.5Mo 钢 F5 130 650
铜 T2 50 350
椭圆八角环垫
Available from Ring No.R11 to R105 to suit the following flange specifications:
Nominal Pipe Size Class Rating and Standard
1/2"-24" 150-250lbs ANSi B16.5 BS 1560
26"-36" 300-600LBS MSS SP44 BS 3293
26"-36" 900lbs MSS SP44
1 1/2"-20" Rating per API 6A specificaion
API管道专用.RX断面形
Available from Ring No.RX20 to R215 to suit the following flange specifications:
Nominal Pipe Size Class Rating and Standard
1 1/2"-20" 720-5000 API flange
API管道专用.BX断面形
Available from Ring No.BX150 to BX162 to suit the following flange specifications:
Nominal Pipe Size Class Rating and Standard
111/16"-16"3/4" 5000-15000API flange
透镜环垫
Manufactured to DIN 2696 standard
N.W.10-400 DIN fla