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球阀是用带圆形通孔的球体作启闭件,球体随阀杆绕阀体中心线旋转以实现阀门开启和关闭.本厂球阀系列为Q41型,为对开二片结构形式.采用特殊的模压工艺，使密封面致密良好，加之V型PTFE填料组合使阀门达到零泄漏。球体与阀杆铸为一体，杜绝了由于压力变化引起阀杆冲出承压件内的可能性，根本保证使用中的安全性。采用全塑料衬里工艺，耐介质的强腐蚀
Q41F46衬氟球阀参数：
|
序号 |
零件名称 |
灰铸铁 |
铸钢 |
不锈耐酸铸钢 |
超低碳不锈耐酸铸钢 |
||
|
Z |
C |
P |
R |
PL |
RL |
||
|
1 |
阀体/阀盖 |
HT250 |
WCB |
CF8 |
CF8M |
CF3 |
CF3M |
|
2 |
球体/阀杆 |
WCB |
CF8 |
CF8M |
CF3 |
CF3M |
|
|
3 |
衬里/阀座 |
PCTEF(F3),FEP(F46),PFA(可溶F4),PP,PO |
|||||
|
4 |
填料压盖 |
WCB |
CF8 |
CF8M |
CF3 |
CF3M |
|
|
5 |
填料 |
PTFE(F4) |
PTFE(F4) |
PTFE(F4) |
|||
|
6 |
支架 |
35 |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
|||
|
7 |
螺栓 |
35 |
Cr17Ni2 |
1Cr18Ni2 |
|||
|
8 |
紧固螺母 |
45 |
0Cr18Ni9 |
0Cr18Ni9 |
|||
|
9 |
操作手柄 |
WCB |
WCB |
WCB |
|||
Q41F46衬氟球阀连接尺寸：
|
公称通经 |
L |
D |
D1 |
D2 |
f |
b |
Z-φd |
|
|
DN(mm) |
NPS(inch) |
PN1.0MPa |
||||||
|
15 |
1/2 |
130 |
95 |
65 |
45 |
2 |
14 |
4-φ14 |
|
20 |
3/4 |
140 |
105 |
75 |
55 |
2 |
16 |
4-φ14 |
|
25 |
1 |
150 |
115 |
85 |
65 |
2 |
16 |
4-φ14 |
|
32 |
5/4 |
165 |
135 |
100 |
78 |
2 |
18 |
4-φ18 |
|
40 |
3/2 |
180 |
145 |
110 |
85 |
3 |
18 |
4-φ18 |
|
50 |
2 |
200 |
160 |
125 |
100 |
3 |
20 |
4-φ18 |
|
65 |
5/2 |
220 |
180 |
145 |
120 |
3 |
20 |
4-φ18 |
|
80 |
3 |
250 |
195 |
160 |
135 |
3 |
22 |
4-φ18 |
|
100 |
4 |
280 |
215 |
180 |
155 |
3 |
22 |
8-φ18 |
|
125 |
5 |
320 |
245 |
210 |
185 |
3 |
24 |
8-φ18 |
|
150 |
6 |
360 |
280 |
240 |
210 |
3 |
24 |
8-φ23 |
|
200 |
8 |
457 |
335 |
295 |
265 |
3 |
26 |
8-φ23 |
|
250 |
10 |
533 |
390 |
350 |
320 |
3 |
28 |
12-φ23 |
|
PN1.6MPa |
||||||||
|
15 |
1/2 |
130 |
95 |
65 |
45 |
2 |
14 |
4-φ14 |
|
20 |
3/4 |
130 |
105 |
75 |
55 |
2 |
16 |
4-φ14 |
|
25 |
1 |
140 |
115 |
85 |
65 |
2 |
16 |
4-φ14 |
|
32 |
5/4 |
165 |
135 |
100 |
78 |
2 |
18 |
4-φ18 |
|
40 |
3/2 |
165 |
145 |
110 |
85 |
3 |
18 |
4-φ18 |
|
50 |
2 |
203 |
160 |
125 |
100 |
3 |
20 |
4-φ18 |
|
65 |
5/2 |
222 |
180 |
145 |
120 |
3 |
20 |
4-φ18 |
|
80 |
3 |
241 |
195 |
160 |
135 |
3 |
22 |
8-φ18 |
|
100 |
4 |
305 |
215 |
180 |
155 |
3 |
24 |
8-φ18 |
|
125 |
5 |
356 |
245 |
210 |
185 |
3 |
26 |
8-φ18 |
|
150 |
6 |
394 |
280 |
240 |
210 |
3 |
28 |
8-φ23 |
|
200 |
8 |
457 |
335 |
295 |
265 |
3 |
30 |
12-φ23 |
