國標截止�概述�
國標截止�的啟閉件是圓柱形的閥�,密封面呈平面或錐面,閥瓣沿流體的中心線作直線運�。國標截止閥只適用于全開和全�(guān),一般不用來�(diào)節(jié)流量,定做時允許作調(diào)節(jié)和節(jié)��
�(yīng)用范�:
法蘭連接國標截止閥適用于公稱壓力PN1.6�16.0Mpa,工作溫�-29�550℃的石油、化�、制�、化�、電力行�(yè)等各種工況的管道�,切斷或接通介�(zhì)。截止閥適用介質(zhì)為:�、油品、蒸�、酸性介�(zhì)�。操作方式有:手�、齒輪傳動、電�、氣動等�
�(jié)�(gòu)特點�
截止閥產(chǎn)品設(shè)計制造按國家標準GB12235,結(jié)�(gòu)合理,密封可�,性能�(yōu)�,造型美觀�
閥瓣、閥座密封面用鐵基合金堆焊或司太立(stellite)鈷基硬�(zhì)合金堆焊而成,耐磨、耐高�、耐腐蝕、抗擦傷性能�、使用壽命長�
閥桿�(jīng)�(diào)�(zhì)及表面氮化處理,有良好的抗腐蝕性和抗擦傷��
可采用各種配管法蘭標準及法蘭密封面形�,滿足各種工程需要和用戶要求�
倒密封采用螺紋連接密封座或本體堆焊奧氏體不銹鋼而成,密封可�,填料與日俱更換可在不停機情況下進行方便快捷不影響系�(tǒng)運行�
標準�(guī)范:
�(shè)計制造標準:GB/T 12235-2007
�(jié)�(gòu)長度標準:GB/T 12221-2005
連接法蘭標準:GB/T 9113
壓力溫度等級:GB/T 12224-2005
試驗檢驗標準:GB/T 13927-2008
性能�(guī)�
公稱壓力
PN(MPa� |
試驗壓力(MPa� |
適用溫度(℃� |
適用
介質(zhì) |
強度試驗 |
密封試驗 |
WCB |
Wr5Mo |
1Cr18Ni12Mo2Ti |
1C18Ni9Ti |
1.6 |
2.4 |
1.8 |
≤425 |
≤550 |
≤200 |
≤200 |
�、油�、蒸氣、酸性介�(zhì) |
2.5 |
3.8 |
2.8 |
4.0 |
6.0 |
4.4 |
6.4 |
9.6 |
7.1 |
10.0 |
15 |
11 |
/ |
16.0 |
24 |
17.6 |
材料與工況:
� � |
WCB |
ZG1Cr18Ni12Mo2Ti |
ZGCr5Mo |
ZG1Cr18Ni9Ti |
� � |
WCB |
ZG1Cr18Ni12Mo2Ti |
ZGCr5Mo |
ZG1Cr18Ni9Ti |
� � |
WCB |
ZG1Cr18Ni12Mo2Ti |
ZGCr5Mo |
ZG1Cr18Ni9Ti |
� � |
2Cr13 |
316 |
Cr5Mo |
304 |
� � |
2Cr13 |
316 |
25Cr2MoV |
304 |
� � |
25 |
316 |
304 |
304 |
密封�(huán) |
304、增強柔性石� |
� � |
增強柔性石� |
閥桿螺母 |
ZCuA110Fe3 |
主要尺寸及重量:
公稱壓力
PN(MPa� |
公稱通徑
DN(mm� |
主要外形尺寸及連接尺寸(mm� |
重量
(kg� |
L |
D |
D1 |
D2 |
D6 |
b-f |
f2 |
z-φd |
H |
Do |
1.6 |
10 |
130 |
90 |
60 |
40 |
/ |
14-2 |
/ |
4-14 |
198 |
120 |
4.7 |
15 |
130 |
95 |
65 |
45 |
/ |
16-2 |
/ |
4-14 |
218 |
120 |
5.2 |
20 |
150 |
105 |
75 |
55 |
/ |
16-2 |
/ |
4-14 |
258 |
140 |
7.1 |
25 |
160 |
115 |
85 |
65 |
/ |
16-2 |
/ |
4-14 |
275 |
160 |
7.4 |
32 |
180 |
135 |
100 |
78 |
/ |
18-2 |
/ |
4-18 |
280 |
180 |
8.5 |
40 |
200 |
145 |
110 |
85 |
/ |
18-3 |
/ |
4-18 |
330 |
200 |
12.5 |
50 |
230 |
160 |
125 |
100 |
/ |
18-3 |
/ |
4-18 |
350 |
240 |
14 |
65 |
290 |
180 |
145 |
120 |
/ |
18-3 |
/ |
4-18 |
400 |
280 |
22.58 |
80 |
340 |
195 |
160 |
135 |
/ |
20-3 |
/ |
8-18 |
355 |
280 |
29 |
100 |
350 |
215 |
180 |
155 |
/ |
22-3 |
/ |
8-18 |
415 |
320 |
32.5 |
125 |
400 |
245 |
210 |
185 |
/ |
24-3 |
/ |
8-18 |
460 |
360 |
80 |
150 |
480 |
280 |
240 |
210 |
/ |
24-3 |
/ |
8-23 |
510 |
400 |
93.5 |
200 |
600 |
335 |
295 |
265 |
/ |
26-3 |
/ |
12-23 |
710 |
400 |
180 |
250 |
650 |
405 |
355 |
320 |
/ |
30-3 |
/ |
12-25 |
786 |
450 |
440 |
300 |
750 |
460 |
410 |
375 |
/ |
30-4 |
/ |
12-25 |
925 |
500 |
648 |
2.5 |
10 |
130 |
90 |
60 |
40 |
/ |
16-2 |
/ |
4-14 |
198 |
120 |
4.9 |
15 |
130 |
95 |
65 |
45 |
/ |
16-2 |
/ |
4-14 |
218 |
120 |
5.4 |
20 |
150 |
105 |
75 |
55 |
/ |
16-2 |
/ |
4-14 |
258 |
140 |
7 |
25 |
160 |
115 |
85 |
65 |
/ |
16-2 |
/ |
4-14 |
275 |
160 |
7.4 |
32 |
180 |
135 |
100 |
78 |
/ |
18-2 |
/ |
4-18 |
280 |
180 |
8.5 |
40 |
200 |
145 |
110 |
85 |
/ |
18-3 |
/ |
4-18 |
330 |
200 |
12.5 |
50 |
230 |
160 |
125 |
100 |
/ |
20-3 |
/ |
4-18 |
350 |
240 |
16 |
65 |
290 |
180 |
145 |
125 |
/ |
22-3 |
/ |
8-18 |
400 |
280 |
25 |
80 |
310 |
195 |
160 |
145 |
/ |
22-3 |
/ |
8-18 |
355 |
280 |
30 |
100 |
350 |
230 |
190 |
160 |
/ |
24-3 |
/ |
8-23 |
415 |
320 |
34.5 |
125 |
400 |
270 |
220 |
188 |
/ |
28-3 |
/ |
8-25 |
460 |
360 |
89 |
150 |
480 |
300 |
250 |
218 |
/ |
30-3 |
/ |
8-25 |
510 |
400 |
98 |
200 |
600 |
360 |
310 |
278 |
/ |
34-3 |
/ |
12-25 |
710 |
400 |
180 |
250 |
650 |
425 |
370 |
332 |
/ |
36-3 |
/ |
12-30 |
786 |
450 |
446 |
300 |
750 |
485 |
430 |
390 |
/ |
40-4 |
/ |
12-30 |
925 |
500 |
654 |
4.0 |
10 |
130 |
90 |
60 |
40 |
34 |
16-2 |
4 |
4-14 |
198 |
120 |
4.9 |
15 |
130 |
95 |
65 |
45 |
40 |
16-2 |
4 |
4-14 |
233 |
120 |
5.7 |
20 |
150 |
105 |
75 |
55 |
51 |
16-2 |
4 |
4-14 |
275 |
140 |
7 |
25 |
160 |
115 |
85 |
65 |
58 |
16-2 |
4 |
4-14 |
285 |
160 |
8.8 |
32 |
180 |
135 |
100 |
78 |
66 |
18-2 |
4 |
4-18 |
302 |
180 |
11.8 |
40 |
200 |
145 |
110 |
85 |
76 |
18-3 |
4 |
4-18 |
355 |
200 |
16.5 |
50 |
230 |
160 |
125 |
100 |
88 |
20-3 |
4 |
4-18 |
373 |
240 |
24 |
65 |
290 |
180 |
145 |
125 |
110 |
22-3 |
4 |
8-18 |
408 |
280 |
33 |
80 |
310 |
195 |
160 |
145 |
121 |
22-32 |
4 |
8-18 |
436 |
320 |
44 |
100 |
350 |
230 |
190 |
160 |
150 |
24-3 |
4.5 |
8-23 |
480 |
360 |
60 |
125 |
400 |
270 |
220 |
188 |
176 |
28-3 |
4.5 |
8-25 |
558 |
400 |
89 |
150 |
480 |
300 |
250 |
218 |
204 |
30-3 |
4.5 |
8-25 |
611 |
400 |
98 |
200 |
600 |
375 |
320 |
282 |
260 |
38-3 |
4.5 |
12-30 |
720 |
400 |
190 |
|