低溫法蘭閘閥適用于甲烷、液態(tài)天然氣、已烯、二氧化碳、液氨、液氧、液氮、液氫等低溫介質(zhì)。
低溫法蘭閘閥產(chǎn)品特點(diǎn)
1、為防止中腔異常升壓,在閘板的進(jìn)口側(cè)設(shè)置了泄壓孔
2、根據(jù)閥門的工作溫度確定閥蓋的頂部長度,確保閥桿填料的可靠密封
3、根據(jù)工作溫度合理選用填料,墊片等零件的材料
4、嚴(yán)格控制材料的化學(xué)成份及低溫沖擊韌性等力學(xué)性能指標(biāo)
5、采用多種配管法蘭標(biāo)準(zhǔn)及密封面型式,適用于各種工程需要
二、低溫法蘭閘閥執(zhí)行標(biāo)準(zhǔn):
設(shè)計(jì)與制造 |
結(jié)構(gòu)長度 |
法蘭尺寸 |
壓力-溫度 |
試驗(yàn)-檢驗(yàn) |
JB/T7749 |
GB12221 |
JB79 |
Gb9131 |
JB/T9092 |
三、低溫法蘭閘閥壓力試驗(yàn):
公稱壓力PN |
1.6 |
2.5 |
4.0 |
6.4 |
10.0 |
強(qiáng)度試驗(yàn) |
2.4 |
3.8 |
6.0 |
9.6 |
15.0 |
水密封試驗(yàn) |
1.8 |
2.8 |
4.4 |
7.0 |
11.0 |
上密封試驗(yàn) |
1.8 |
2.8 |
4.4 |
7.0 |
11.0 |
氣密封試驗(yàn) |
0.4-0.7 |
四、低溫法蘭閘閥主要零件材料及性能:
體蓋板 |
閥桿 |
密封面 |
墊片 |
填料 |
工作溫度 |
適用介質(zhì) |
ZGoCrMNVAI低溫高壓鑄鋼 |
1Cr7Ni12 |
STL/STL |
1Cr13/柔性石墨 低溫石棉 |
PTFE浸聚四氟乙 烯石棉繩 柔性石墨 |
-46 |
丙烷/炳烯 甲醇/乙烷 煤氣/液氨 |
LCB |
ZGoCrMNVAI低溫高壓鑄鋼 |
-60 |
LC1 |
ZGoCrMNVAI低溫高壓鑄鋼 |
-73 |
LC2 |
ZGoCrMNVAI低溫高壓鑄鋼 |
1Cr18Ni9Ti |
-101 |
LC3 |
ZGoCrMNVAI低溫高壓鑄鋼 |
-115 |
LC4 |
ZGoCrMNVAI低溫高壓鑄鋼 |
-196 |
|
五、低溫法蘭閘閥規(guī)格主要尺寸(PN1.6MPa-2.5 MPa):
1.6MPa |
DN |
L |
D |
D1 |
D2 |
b |
n-Φd |
H |
D0 |
凸面法法 RF DZ40Y-16LCB DZ40Y-16LC1 DZ40Y-16LC2 DZ40Y-16LC3 DZ40Y-16LC4 DZ40Y-16P DZ40Y-16R |
20 |
150 |
105 |
75 |
55 |
14 |
4-Φ14 |
320 |
140 |
25 |
160 |
115 |
85 |
65 |
14 |
4-Φ14 |
350 |
160 |
32 |
180 |
135 |
100 |
78 |
16 |
4-Φ18 |
385 |
180 |
40 |
200 |
145 |
110 |
85 |
16 |
4-Φ18 |
420 |
220 |
50 |
250 |
160 |
125 |
100 |
16 |
4-Φ18 |
540 |
240 |
65 |
265 |
180 |
145 |
120 |
18 |
4-Φ18 |
610 |
240 |
80 |
280 |
195 |
160 |
135 |
20 |
8-Φ18 |
690 |
280 |
100 |
300 |
215 |
180 |
155 |
20 |
8-Φ18 |
780 |
300 |
125 |
325 |
245 |
210 |
185 |
22 |
8-Φ18 |
930 |
320 |
150 |
350 |
280 |
240 |
210 |
24 |
8-Φ23 |
980 |
350 |
200 |
400 |
335 |
295 |
265 |
26 |
12-Φ26 |
1180 |
400 |
250 |
450 |
105 |
355 |
320 |
30 |
12-Φ30 |
1390 |
450 |
300 |
500 |
460 |
410 |
375 |
30 |
12-Φ30 |
1620 |
500 |
350 |
550 |
520 |
470 |
435 |
34 |
16-Φ34 |
1810 |
500 |
400 |
600 |
580 |
525 |
485 |
36 |
16-Φ36 |
1970 |
550 |
2.5MPa |
20 |
150 |
105 |
75 |
55 |
16 |
4-Φ16 |
320 |
140 |
凸面法法 RF DZ40Y-25LCB DZ40Y-25LC1 DZ40Y-25LC2 DZ40Y-25LC3 DZ40Y-25LC4 DZ40Y-25P DZ40Y-25R |
25 |
160 |
115 |
85 |
65 |
16 |
4-Φ16 |
350 |
160 |
32 |
180 |
135 |
100 |
78 |
18 |
4-Φ18 |
385 |
180 |
40 |
200 |
145 |
110 |
85 |
18 |
4-Φ18 |
420 |
200 |
50 |
250 |
160 |
125 |
100 |
20 |
4-Φ20 |
540 |
240 |
65 |
265 |
180 |
145 |
125 |
22 |
8-Φ22 |
510 |
240 |
80 |
280 |
195 |
160 |
135 |
22 |
8-Φ22 |
690 |
280 |
100 |
300 |
230 |
190 |
160 |
24 |
8-Φ24 |
780 |
300 |
125 |
325 |
270 |
220 |
188 |
28 |
8-Φ28 |
930 |
300 |
150 |
350 |
300 |
250 |
218 |
30 |
8-Φ30 |
980 |
320 |
200 |
400 |
360 |
310 |
278 |
34 |
12-Φ34 |
1180 |
360 |
250 |
450 |
425 |
370 |
332 |
36 |
12-Φ36 |
1390 |
400 |
300 |
500 |
485 |
430 |
390 |
40 |
16-Φ40 |
1620 |
450 |
350 |
550 |
550 |
490 |
448 |
44 |
16-Φ44 |
1810 |
500 |
400 |
600 |
610 |
550 |
505 |
48 |
16-Φ48 |
1990 |
560 |
六、低溫法蘭閘閥規(guī)格主要尺寸PN4.0MPa-10.0MPa:
4.0 MPa |
DN |
L |
D |
D1 |
D2 |
D6 |
b |
n-Φd |
H |
D0 |
凹面法法 MFM DZ40Y-40LCB DZ40Y-40LC1 DZ40Y-40LC2 DZ40Y-40LC3 DZ40Y-40LC4 DZ40Y-40P DZ40Y-40R |
20 |
150 |
105 |
75 |
55 |
51 |
16 |
4-Φ14 |
330 |
140 |
25 |
160 |
115 |
85 |
65 |
58 |
16 |
4-Φ14 |
360 |
160 |
32 |
180 |
135 |
100 |
78 |
66 |
18 |
4-Φ18 |
440 |
180 |
40 |
200 |
145 |
110 |
85 |
76 |
18 |
4-Φ18 |
455 |
200 |
50 |
250 |
160 |
125 |
100 |
88 |
20 |
4-Φ18 |
575 |
240 |
65 |
380 |
180 |
145 |
120 |
110 |
22 |
4-Φ20 |
635 |
240 |
80 |
3103 |
195 |
160 |
135 |
121 |
22 |
8-Φ22 |
715 |
280 |
100 |
50 |
230 |
190 |
160 |
150 |
24 |
8-Φ22 |
815 |
300 |
125 |
400 |
270 |
220 |
188 |
176 |
28 |
8-Φ24 |
965 |
360 |
150 |
450 |
300 |
250 |
218 |
204 |
30 |
8-Φ28 |
1025 |
400 |
200 |
550 |
375 |
320 |
282 |
160 |
38 |
8-Φ30 |
1225 |
450 |
250 |
650 |
445 |
385 |
345 |
313 |
42 |
12-Φ34 |
1440 |
560 |
300 |
750 |
510 |
450 |
408 |
364 |
46 |
16-Φ34 |
1665 |
5470 |
350 |
850 |
570 |
510 |
465 |
422 |
52 |
16-Φ41 |
1880 |
720 |
400 |
950 |
655 |
585 |
535 |
474 |
58 |
16-Φ18 |
2050 |
800 |
6.4MPa |
20 |
190 |
125 |
90 |
68 |
51 |
20 |
4-Φ18 |
330 |
180 |
凹面法法 MFM DZ40Y-64LCB DZ40Y-64LC1 DZ40Y-64LC2 DZ40Y-64LC3 DZ40Y-64LC4 DZ40Y-64P DZ40Y-64R |
25 |
210 |
135 |
100 |
78 |
58 |
22 |
4-Φ23 |
360 |
180 |
32 |
230 |
150 |
110 |
82 |
66 |
24 |
4-Φ23 |
410 |
180 |
40 |
240 |
165 |
125 |
95 |
76 |
24 |
4-Φ23 |
480 |
220 |
50 |
250 |
175 |
135 |
105 |
88 |
26 |
4-Φ23 |
585 |
240 |
65 |
280 |
200 |
160 |
130 |
110 |
28 |
8-Φ23 |
690 |
240 |
80 |
310 |
210 |
170 |
140 |
121 |
30 |
8-Φ23 |
745 |
280 |
100 |
350 |
250 |
200 |
168 |
150 |
32 |
8-Φ25 |
885 |
300 |
125 |
400 |
295 |
240 |
202 |
176 |
36 |
8-Φ30 |
985 |
360 |
150 |
450 |
340 |
280 |
240 |
204 |
38 |
8-Φ34 |
1050 |
400 |
200 |
550 |
405 |
345 |
300 |
260 |
44 |
12-Φ34 |
1240 |
450 |
250 |
650 |
470 |
400 |
352 |
313 |
48 |
12-Φ41 |
1460 |
560 |
300 |
750 |
530 |
160 |
412 |
364 |
54 |
16-Φ41 |
1670 |
5640 |
10.0MPa |
25 |
210 |
135 |
100 |
78 |
58 |
24 |
4-Φ18 |
365 |
200 |
凹面法法 MFM DZ40Y-100LCB DZ40Y-100LC1 DZ40Y-100LC2 DZ40Y-100LC3 DZ40Y-100LC4 DZ40Y-100P DZ40Y-100R |
32 |
230 |
150 |
110 |
82 |
66 |
24 |
4-Φ23 |
420 |
200 |
50 |
250 |
195 |
145 |
112 |
88 |
28 |
4-Φ25 |
630 |
240 |
65 |
280 |
220 |
170 |
138 |
110 |
32 |
8-Φ25 |
700 |
240 |
80 |
310 |
230 |
180 |
148 |
121 |
34 |
8-Φ25 |
760 |
280 |
100 |
350 |
265 |
210 |
172 |
150 |
38 |
8-Φ30 |
900 |
280 |