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用于一般用途卡套式管接头的工作压力(GB/T 3765—2008) |
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系列 |
管子 外径 /mm |
卡套连接与锥体连接 |
E型螺纹柱端 |
B型螺纹柱端 |
A型螺纹柱端 |
锥螺纹柱端 |
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普通 螺纹 |
最大工 作压力a /MPab |
普通 螺纹 |
最大工 作压力a /MPab |
普通 螺纹 |
最大工 作压力a /MPab |
普通 螺纹 |
55° 非密封 管螺纹 |
最大工 作压力a /MPab |
55° 密封 管螺纹 |
60° 密封 管螺纹 |
最大工 作压力a /MPab |
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|
LL |
4 |
M8×1 |
10 |
— |
— |
M8×1 |
10 |
M8×1 |
G1/8 |
10 |
R1/8 |
NPT1/8 |
10 |
|
5 |
M10×1 |
10 |
— |
— |
M8×1 |
10 |
M8×1 |
G1/8 |
10 |
R1/8 |
NPT1/8 |
10 |
|
|
6 |
M10×1 |
10 |
— |
— |
M10×1 |
10 |
M10×1 |
G1/8 |
10 |
R1/8 |
NPT1/8 |
10 |
|
|
8 |
M12×1 |
10 |
— |
— |
M10×1 |
10 |
M10×1 |
G1/8 |
10 |
R1/8 |
NPT1/8 |
10 |
|
|
L |
6 |
M12×1.5 |
25 |
M10×1 |
25 |
M10×1 |
25 |
M10×1 |
G1/8 |
25 |
R1/8 |
NPT1/8 |
25 |
|
8 |
M14×1.5 |
25 |
M12×1.5 |
25 |
M12×1.5 |
25 |
M12×1.5 |
G1/4 |
25 |
R1/4 |
NPT1/4 |
25 |
|
|
10 |
M16×1.5 |
25 |
M14×1.5 |
25 |
M14×1.5 |
25 |
M14×1.5 |
C1/4 |
25 |
R1/4 |
NPT1/4 |
25 |
|
|
12 |
M18×1.5 |
25 |
M16×1.5 |
25 |
M16×1.5 |
25 |
M16×1.5 |
G3/8 |
25 |
R3/8 |
NPT3/8 |
25 |
|
|
(14) |
M20×1.5 |
25 |
M18×1.5 |
25 |
M18×1.5 |
25 |
M18×1.5 |
G1/2 |
25 |
R1/2 |
NPT1/2 |
25 |
|
|
15 |
M22×1.5 |
25 |
M18×1.5 |
25 |
M18×1.5 |
25 |
M18×1.5 |
G1/2 |
25 |
R1/2 |
NPT1/2 |
25 |
|
|
(16) |
M24×1.5 |
25 |
M20×1.5 |
25 |
M20×1.5 |
25 |
M20×1.5 |
G1/2 |
25 |
R1/2 |
NPT1/2 |
25 |
|
|
18 |
M26×1.5 |
16 |
M22×1.5 |
16 |
M22×1.5 |
16 |
M22×1.5 |
G1/2 |
16 |
R1/2 |
NPT1/2 |
16 |
|
|
22 |
M30×2 |
16 |
M26×1.5 |
16 |
M26×1.5 |
16 |
M26×1.5 |
G3/4 |
16 |
R3/4 |
NPT3/4 |
16 |
|
|
28 |
M36×2 |
10 |
M33×2 |
10 |
M33×2 |
10 |
M33×2 |
G1 |
10 |
R1 |
NPT1 |
10 |
|
|
35 |
M45×2 |
10 |
M42×2 |
10 |
M42×2 |
10 |
M42×2 |
G1¼ |
10 |
R1¼ |
NPT1¼ |
10 |
|
|
42 |
M52×2 |
10 |
M48×2 |
10 |
M48×2 |
10 |
M48×2 |
G1½ |
10 |
R1½ |
NPTl½ |
10 |
|
|
S |
6 |
M14×1.5 |
63 |
M12×1.5 |
63 |
M12×1.5 |
40 |
M12×1.5 |
G1/4 |
63 |
R1/4 |
NPT1/4 |
40 |
|
8 |
M16×1.5 |
63 |
M14×1.5 |
63 |
M14×1.5 |
40 |
M14×1.5 |
G1/4 |
63 |
R1/4 |
NPT1/4 |
40 |
|
|
10 |
M18×1.5 |
63 |
M16×1.5 |
63 |
M16×1.5 |
40 |
M16×1.5 |
G3/8 |
63 |
R3/8 |
NPT3/8 |
40 |
|
|
12 |
M20×1.5 |
63 |
M18×1.5 |
63 |
M18×1.5 |
40 |
M18×1.5 |
G1/2 |
63 |
R1/2 |
NPT1/2 |
40 |
|
|
(14) |
M22×1.5 |
63 |
M20×1.5 |
63 |
M20×1.5 |
40 |
M20×1.5 |
G1/2 |
63 |
R1/2 |
NPT1/2 |
40 |
|
|
16 |
M24×1.5 |
40 |
M22×1.5 |
40 |
M22×1.5 |
40 |
M22×1.5 |
G3/4 |
40 |
R3/4 |
NPT3/4 |
40 |
|
|
20 |
M30×2 |
40 |
M27×2 |
40 |
M27×2 |
40 |
M27×2 |
G3/4 |
40 |
R3/4 |
NPT3/4 |
40 |
|
|
25 |
M36×2 |
40 |
M33×2 |
40 |
M33×2 |
25 |
M33×2 |
G1 |
40 |
R1 |
NPT1 |
25 |
|
|
30 |
M42×2 |
25 |
M42×2 |
25 |
M42×2 |
16 |
M42×2 |
G1¼ |
25 |
R1¼ |
NPT1¼ |
16 |
|
|
38 |
M52×2 |
25 |
M48×2 |
25 |
M48×2 |
16 |
M48×2 |
G1½ |
25 |
R1½ |
NPTl½ |
16 |
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a 设计系数:4∶1。 b 1 MPa=10 bar=l06 N/m2=106 Pa。 注:1.A 型和E 型螺纹柱端应符合GB/T 19674.2;B型螺纹柱端应符合GB/T 19674.3。 2.对于更高压力和动态应用,应咨询制造商。 3.尽可能不采用括号内的规格。 |
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