| 普通型，螺杆位于填料下部（250℃） |
外螺杆型，螺杆位于填料上部（480℃/550℃） |
外螺杆型，螺杆位于填料上部（480℃/550℃）>
| 序号 > |
部件名称 > |
材料 > |
> |
序号 > |
部件名称 > |
材料 > |
| 1> |
普通型阀体 > |
不锈钢316（250℃） > |
> |
5> |
密封填料 > |
石墨 > |
| 高温型阀体 > |
耐热合金13CrMo44 (1.7335) 450℃ > |
> |
密封填料(可选)> |
PTFE> |
| 耐热合金10CrMo9 10 (1.7380) 550℃> |
> |
6> |
普通型压帽 > |
不锈钢316> |
| 2> |
可换阀座 > |
不锈钢316> |
> |
高温型压帽 > |
不锈钢303 (1.4305)> |
| 3> |
阀头 > |
不锈钢316 > |
> |
7> |
密封垫 > |
不锈钢316> |
| 4> |
阀杆 > |
不锈钢316> |
> |
8> |
手轮 或 直手柄 > |
碳钢 或 不锈钢 > |
二）外形尺寸(mm)：L=90 (A7)/101 (A11); H=101(A7)/124 (A11); D=80 (A7)/80 (A11); M=M22×1.5 (A7)/ M26×1.5 (A11)
三）A7/A11阀门用途：化学适应范围广，可用于各种气体和液体。适用于仪表测试系统、气体处理系统等众多场合。
四）特点：
·阀门通径：A7通径8mm；A11通径12mm
·工作压力： 400 Bar
·最高工作温度：1）普通型A72/ A112为 250℃;2)外螺杆型A72A/ A112A/A73A /A113A为480℃; A117A为550℃
·阀杆密封：三种形式可选 1）石墨填料(标准配置)，大于550℃ 2）PTFE填料200℃
·阀门结构形式：普通型为密封填料位于阀杆螺纹上部，外螺杆型为密封填料位于阀杆螺纹下部,螺杆不接触介质.
·可提供经过除油和去污处理的用于氧气的阀门，密封为PTFE，压力为PN250Bar。
五）订货示例：
| 接口形式 |
|
尺寸mm |
适用的阀门 |
接口形式 |
|
尺寸mm |
适用的阀门 |
| 英制螺纹BSPP |
接口代号 |
G |
L |
B12 |
A7 |
A11 |
可拆焊接式 |
接口代号 |
D |
d |
L |
B12 |
A7 |
A11 |
 |
GI18 |
G1/8〞 |
9 |
● |
● |
|
 |
SK8 |
8 |
4 |
36 |
● |
● |
|
| GI14 |
G1/4〞 |
14 |
● |
● |
● |
SK10 |
10 |
6 |
36 |
● |
● |
|
| GI38 |
G3/8〞 |
14 |
● |
● |
● |
SK12 |
12 |
8 |
36 |
● |
● |
|
| GI12 |
G1/2〞 |
17 |
● |
● |
● |
SK14 |
14 |
8 |
36 |
● |
● |
● |
| GI34 |
G3/4〞 |
19 |
|
|
● |
SK16 |
16 |
10 |
38 |
|
● |
● |
| GI01 |
G1〞 |
21 |
|
|
● |
焊接式 |
接口代号 |
D |
S |
L |
B12 |
A7 |
A11 |
| 美制内锥螺纹NPT |
接口代号 |
N |
L |
B12 |
A7 |
A11 |
|
SZ12 |
12 |
2 |
7 |
● |
● |
● |
 |
NI18 |
1/8〞NPT |
10 |
● |
● |
|
 |
SZ13 |
13.5 |
2.6 |
7 |
● |
● |
● |
| NI14 |
1/4〞NPT |
11 |
● |
● |
● |
SZ14 |
14 |
2.5 |
7 |
● |
● |
● |
| NI38 |
3/8〞NPT |
12 |
● |
● |
● |
SZ17 |
17.2 |
2.6 |
10 |
● |
● |
● |
| NI12 |
1/2〞NPT |
15 |
|
● |
● |
SZ20 |
20 |
2.6 |
10 |
|
● |
● |
| NI34 |
3/4〞NPT |
17 |
|
|
● |
SZ22 |
21.3 |
3.2 |
10 |
|
● |
● |
| NI01 |
1〞NPT |
19 |
|
|
● |
SZ24 |
24 |
7.1 |
10 |
|
|
● |
| 美制外锥螺纹NPT |
接口代号 |
N |
L |
B12 |
A7 |
A11 |
SZ27 |
26.9 |
5 |
10 |
|
|
● |
 |
NA18 |
1/8〞NPT |
8 |
● |
● |
● |
外螺纹仪表接口 |
接口代号 |
D |
L |
d |
B12 |
A7 |
A11 |
| NA14 |
1/4〞NPT |
12 |
● |
● |
● |
 |
GM18 |
G1/8〞 |
10 |
– |
● |
● |
● |
| NA38 |
3/8〞NPT |
12 |
● |
● |
● |
GM14 |
G1/4〞 |
13 |
5 |
● |
● |
● |
| NA12 |
1/2〞NPT |
14 |
● |
● |
● |
GM38 |
G3/8〞 |
16 |
5.5 |
● |
● |
● |
| NA34 |
3/4〞NPT |
16 |
|
● |
● |
GM12 |
G1/2〞 |
20 |
6 |
● |
● |
● |
| NA01 |
1〞NPT |
19 |
|
|
|
MM20 |
M20×1.5 |
20 |
6 |
● |
● |
● |
| 双卡套式连接 |
接口代号 |
d |
|
B12 |
A7 |
A11 |
带活螺母仪表接口 |
接口代号 |
D |
I |
d |
B12 |
A7 |
A11 |
 |
KL6 |
6 |
|
● |
● |
|
|
LG18 |
G1/8〞 |
3 |
4 |
● |
● |
● |
| KL8 |
8 |
|
● |
● |
|
|
LG14 |
G1/4〞 |
3.5 |
5.5 |
● |
● |
● |
| KL10 |
10 |
|
● |
● |
● |
|
LG38 |
G3/8〞 |
4 |
6 |
● |
● |
● |
| KL12 |
12 |
|
● |
● |
● |
|
LG12 |
G1/2〞 |
5.5 |
7 |
● |
● |
● |
| KL14 |
14 |
|
● |
● |
● |
|
LM20 |
M20×1.5 |
5.5 |
7 |
● |
● |
● |
| KL15 |
15 |
|
● |
● |
● |
|
|
|
|
|
|
|
|
| KL16 |
16 |
|
|
● |
● |
|
|
|
|
|
|
|
|
| KL18 |
18 |
|
|
● |
● |
|
|
|
|
|
|
|
|
| !!注：接口所连钢管 |
KL20 |
20 |
|
|
|
● |
|
|
|
|
|
|
|
|
| 外径为d |
KL22 |
22 |
|
|
|
● |
|
|
|
|
|
|
|
|
| |
KL25 |
25 |
|
|
|
● |
|
|
|
|
|
|
|
|
三）E : 排气螺堵
应用：当针阀用作仪表阀门，和压力表等仪表
连接时，用排气螺堵可以在阀门关闭时将表端
的气体放出，使表处于无压状态。
适用于： A7、A11系列针阀 (详见针阀订货示例) |
 |
|
