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產(chǎn)品概述
結(jié)構(gòu)簡述
1、 彈簧全啟式安全閥具有結(jié)構(gòu)簡單、密封性能好、開啟壓力準(zhǔn)確、排放能力大、回座壓差小、調(diào)整方便等特點(diǎn)。
2、噴嘴型閥座:閥座為位伐爾噴嘴型閥座,蒸汽流經(jīng)閥座出口處時達(dá)到音速,排放系數(shù)大,閥座密封面堆焊鈷鉻鎢硬質(zhì)合金,耐磨抗沖蝕,壽命長。
3、熱彈性閥瓣:閥瓣設(shè)計(jì)為熱彈性結(jié)構(gòu),利用其在介質(zhì)壓力下微小的變形,提高密封能力,克服安全閥在介質(zhì)壓力下臨近整定壓力時的前泄現(xiàn)象。閥瓣密封面采用先進(jìn)的激光淬火技術(shù),提高了硬度、耐磨性、抗沖抗性。
4、調(diào)節(jié)螺母:通過調(diào)整調(diào)節(jié)螺母,調(diào)整彈簧壓縮量,使閥門能夠很方便、很迅速地獲得準(zhǔn)確的整定壓力。
5、背壓調(diào)整套:調(diào)整閥瓣背壓的輔助機(jī)構(gòu),通過背壓調(diào)整套調(diào)整,可獲得合適的回座壓差。上調(diào)時,使閥門背壓降低。下調(diào)時,使閥門背壓提高。
安裝說明
1、彈簧全啟封閉式安全閥必須垂直安裝,并直接安裝在容器或管道的接頭上。接頭內(nèi)徑應(yīng)不小于安全閥的進(jìn)口通徑。
2、安全閥的出口必須裝設(shè)適當(dāng)?shù)呐蛎浌?jié),以防止排放管的熱膨脹給安全閥帶來不應(yīng)有的熱應(yīng)力。排放管內(nèi)徑應(yīng)比閥門出口直徑大,長度盡可能短,避免拐彎。排放管及膨脹節(jié)重量不應(yīng)作用在安全閥上,應(yīng)固定在建筑上。排放管的中心線與閥體的中心線間距離盡可能的短。對每臺安全閥都應(yīng)單獨(dú)裝設(shè)排放管。
3、消聲器的出口處要有足夠的面積,防止產(chǎn)生背壓影響閥門的排放能力。
彈簧全啟封閉式安全閥主要零部件材料
上海路濤牌a48y型帶扳手彈簧全啟式安全閥適用于工作溫度≤350℃的蒸汽、空氣等介質(zhì)的設(shè)備和管路上。a44y適用于工作溫度≤300℃的空氣、石油等介質(zhì)的設(shè)備或管路上,作為超壓保護(hù)裝置。連接法蘭標(biāo)準(zhǔn)pn<6.4mpa按jb/t-94系列1。pn≥6.4mpa按jb/t-94系列2標(biāo)準(zhǔn)
二、主要零部件材料:
no. |
零件名稱 |
a48y-c 材料 |
a48y-p材料 |
a48y-r材料 |
1 |
閥體 |
wcb |
zg1cr18ni9ti |
cf8m |
2 |
閥座 |
2cr13 |
1cr18ni9ti |
316 |
3 |
調(diào)節(jié)圈 |
zg2cr13 |
zg1cr18ni9ti |
0cr18ni12mo2ti |
4 |
反沖盤 |
zg2cr13 |
zg1cr18ni9ti |
316 |
5 |
閥瓣 |
2cr13 |
1cr18ni9ti |
316 |
6 |
導(dǎo)向套 |
2cr13 |
1cr18ni9ti |
0cr18ni12mo2ti |
7 |
閥蓋 |
zg230-450 |
zg230-450 |
zg230-450 |
8 |
彈簧 |
50crva |
50crva包覆氟塑料 |
50crva包覆氟塑料 |
9 |
閥桿 |
2cr13 |
1cr18ni9ti |
1cr18ni12mo2ti |
10 |
扳手 |
zg200-400 |
zg200-400 |
zg200-400 |
11 |
調(diào)整螺桿 |
45 |
2cr13 |
2cr13 |
12 |
保護(hù)罩 |
zg200-400 |
zg200-400 |
316 |
密封面材料 |
堆焊co基硬質(zhì)合金 |
三、外形尺寸和連接尺寸:
型號 |
公稱通徑 |
do |
d |
k |
g |
g1 |
b |
f |
f1 |
z-ød |
dn |
d1 |
k1 |
g3 |
g2 |
b1 |
f |
f1 |
z1-ød1 |
l |
l1 |
≈h |
a48y-16c |
20 |
15 |
105 |
75 |
55 |
16 |
2 |
4-14 |
25 |
115 |
85 |
65 |
16 |
2 |
4-14 |
110 |
95 |
411 |
||||
25 |
16 |
115 |
85 |
65 |
16 |
2 |
4-14 |
32 |
140 |
100 |
78 |
18 |
2 |
4-18 |
110 |
95 |
411 |
|||||
32 |
20 |
140 |
100 |
78 |
18 |
2 |
4-18 |
40 |
150 |
110 |
85 |
18 |
3 |
4-18 |
115 |
100 |
411 |
|||||
40 |
25 |
150 |
110 |
85 |
18 |
3 |
4-18 |
50 |
165 |
125 |
100 |
20 |
3 |
4-18 |
120 |
110 |
472 |
|||||
50 |
32 |
165 |
125 |
100 |
20 |
3 |
4-18 |
65 |
185 |
145 |
120 |
20 |
3 |
4-18 |
135 |
120 |
532 |
|||||
65 |
40 |
185 |
145 |
120 |
20 |
3 |
4-18 |
80 |
200 |
160 |
135 |
20 |
3 |
8-18 |
160 |
140 |
556 |
|||||
80 |
50 |
200 |
160 |
135 |
20 |
3 |
8-18 |
100 |
220 |
180 |
155 |
22 |
3 |
8-18 |
170 |
135 |
561 |
|||||
100 |
65 |
220 |
180 |
155 |
20 |
3 |
8-18 |
125 |
250 |
210 |
185 |
22 |
3 |
8-18 |
195 |
175 |
667 |
|||||
125 |
80 |
250 |
210 |
185 |
22 |
3 |
8-18 |
150 |
285 |
240 |
210 |
24 |
3 |
8-23 |
210 |
190 |
857 |
|||||
150 |
100 |
285 |
240 |
210 |
24 |
3 |
8-23 |
175 |
310 |
270 |
240 |
26 |
3 |
8-23 |
255 |
230 |
915 |
|||||
200 |
125 |
340 |
295 |
265 |
26 |
3 |
12-23 |
250 |
405 |
355 |
320 |
30 |
3 |
12-26 |
300 |
260 |
1073 |
|||||
250 |
150 |
405 |
355 |
320 |
30 |
3 |
12-26 |
300 |
460 |
410 |
375 |
30 |
4 |
12-26 |
350 |
320 |
1307 |
|||||
300 |
220 |
460 |
410 |
375 |
30 |
4 |
12-26 |
400 |
580 |
525 |
485 |
36 |
4 |
16-30 |
370 |
350 |
1233 |
|||||
350 |
250 |
520 |
470 |
435 |
34 |
4 |
16-26 |
500 |
715 |
650 |
608 |
44 |
4 |
20-34 |
500 |
450 |
1711 |
|||||
400 |
280 |
580 |
525 |
485 |
36 |
4 |
16-30 |
500 |
715 |
650 |
608 |
44 |
4 |
20-34 |
500 |
450 |
1780 |
|||||
a48y-25 |
20 |
15 |
105 |
75 |
55 |
16 |
2 |
4-14 |
25 |
115 |
85 |
65 |
16 |
2 |
4-14 |
110 |
95 |
411 |
||||
25 |
16 |
115 |
85 |
65 |
16 |
2 |
4-14 |
32 |
140 |
100 |
78 |
18 |
2 |
4-18 |
110 |
95 |
411 |
|||||
32 |
20 |
140 |
100 |
78 |
18 |
2 |
4-18 |
40 |
150 |
110 |
85 |
18 |
3 |
4-18 |
115 |
100 |
411 |
|||||
40 |
25 |
150 |
110 |
85 |
18 |
3 |
4-18 |
50 |
165 |
125 |
100 |
20 |
3 |
4-18 |
120 |
110 |
472 |
|||||
50 |
32 |
165 |
125 |
100 |
20 |
3 |
4-18 |
65 |
185 |
145 |
120 |
20 |
3 |
4-18 |
135 |
120 |
532 |
|||||
65 |
40 |
185 |
145 |
120 |
22 |
3 |
8-18 |
80 |
200 |
160 |
135 |
20 |
3 |
8-18 |
160 |
140 |
556 |
|||||
80 |
50 |
200 |
160 |
135 |
22 |
3 |
8-18 |
100 |
220 |
180 |
155 |
22 |
3 |
8-18 |
170 |
135 |
561 |
|||||
100 |
65 |
230 |
190 |
160 |
24 |
3 |
8-23 |
125 |
250 |
210 |
185 |
22 |
3 |
8-18 |
195 |
175 |
667 |
|||||
125 |
80 |
270 |
220 |
188 |
28 |
3 |
8-26 |
150 |
285 |
240 |
210 |
24 |
3 |
8-23 |
210 |
190 |
857 |
|||||
150 |
100 |
300 |
250 |
218 |
30 |
3 |
8-26 |
175 |
310 |
270 |
240 |
26 |
3 |
8-23 |
255 |
230 |
915 |
|||||
200 |
125 |
360 |
310 |
278 |
34 |
3 |
12-26 |
250 |
405 |
355 |
320 |
30 |
3 |
12-26 |
300 |
260 |
1073 |
|||||
250 |
150 |
425 |
370 |
332 |
36 |
3 |
12-30 |
300 |
460 |
410 |
375 |
30 |
4 |
12-26 |
350 |
320 |
1307 |
|||||
300 |
220 |
485 |
430 |
390 |
40 |
4 |
16-30 |
400 |
580 |
525 |
485 |
36 |
4 |
16-30 |
370 |
350 |
1233 |
|||||
350 |
250 |
555 |
490 |
448 |
44 |
4 |
16-34 |
500 |
715 |
650 |
608 |
44 |
4 |
20-34 |
500 |
450 |
1711 |
|||||
400 |
280 |
620 |
550 |
505 |
48 |
4 |
16-36 |
500 |
715 |
650 |
608 |
44 |
4 |
20-34 |
500 |
450 |
1780 |
|||||
a48y-40 |
20 |
15 |
105 |
75 |
51 |
55 |
16 |
2 |
4 |
4-14 |
25 |
115 |
85 |
65 |
16 |
2 |
4-14 |
110 |
95 |
411 |
||
25 |
16 |
115 |
85 |
58 |
65 |
16 |
2 |
4 |
4-14 |
32 |
140 |
100 |
78 |
18 |
2 |
4-18 |
110 |
95 |
411 |
|||
32 |
20 |
140 |
100 |
66 |
78 |
18 |
2 |
4 |
4-18 |
40 |
150 |
110 |
85 |
18 |
3 |
4-18 |
115 |
100 |
411 |
|||
40 |
25 |
150 |
110 |
76 |
85 |
18 |
3 |
4 |
4-18 |
50 |
165 |
125 |
100 |
20 |
3 |
4-18 |
120 |
110 |
472 |
|||
50 |
32 |
165 |
125 |
88 |
100 |
20 |
3 |
4 |
4-18 |
65 |
185 |
145 |
120 |
20 |
3 |
4-18 |
135 |
120 |
532 |
|||
65 |
40 |
185 |
145 |
110 |
120 |
22 |
,
3 |
4 |
8-18 |
80 |
200 |
160 |
135 |
20 |
3 |
8-18 |
160 |
140 |
556 |
|||
80 |
50 |
200 |
160 |
121 |
135 |
22 |
3 |
4 |
8-18 |
100 |
220 |
180 |
155 |
22 |
3 |
8-18 |
170 |
135 |
561 |
|||
100 |
65 |
235 |
190 |
150 |
160 |
24 |
3 |
4.5 |
8-23 |
125 |
250 |
210 |
185 |
22 |
3 |
8-18 |
195 |
175 |
697 |
|||
125 |
80 |
270 |
220 |
176 |
188 |
28 |
3 |
4.5 |
8-26 |
150 |
285 |
240 |
210 |
24 |
3 |
8-23 |
210 |
190 |
857 |
|||
150 |
100 |
300 |
250 |
204 |
218 |
30 |
3 |
4.5 |
8-26 |
175 |
310 |
270 |
240 |
26 |
3 |
8-23 |
255 |
230 |
915 |
|||
200 |
125 |
375 |
320 |
260 |
282 |
38 |
3 |
4.5 |
12-30 |
250 |
405 |
355 |
320 |
30 |
3 |
12-26 |
300 |
260 |
1073 |
|||
250 |
150 |
450 |
385 |
313 |
345 |
42 |
3 |
4.5 |
12-34 |
300 |
460 |
410 |
375 |
30 |
4 |
12-26 |
350 |
320 |
1307 |
|||
300 |
220 |
515 |
450 |
364 |
408 |
46 |
4 |
4.5 |
16-34 |
400 |
580 |
525 |
485 |
36 |
4 |
16-30 |
370 |
350 |
1233 |
|||
350 |
250 |
580 |
510 |
422 |
465 |
52 |
4 |
5 |
16-36 |
500 |
715 |
650 |
608 |
44 |
4 |
20-34 |
500 |
450 |
1711 |
|||
400 |
280 |
660 |
585 |
474 |
535 |
58 |
4 |
5 |
16-41 |
500 |
715 |
650 |
608 |
44 |
4 |
20-34 |
500 |
450 |
1711 |
|||
a48y-64 |
20 |
10 |
125 |
90 |
51 |
68 |
22 |
2 |
4 |
4-18 |
25 |
115 |
85 |
58 |
65 |
16 |
2 |
4 |
4-14 |
96 |
85 |
297 |
25 |
16 |
140 |
100 |
58 |
78 |
22 |
2 |
4 |
4-18 |
32 |
140 |
100 |
66 |
78 |
18 |
2 |
4 |
4-18 |
110 |
100 |
310 |
|
32 |
20 |
155 |
110 |
66 |
82 |
24 |
2 |
4 |
4-23 |
40 |
150 |
110 |
76 |
85 |
18 |
3 |
4 |
4-18 |
130 |
110 |
322 |
|
40 |
25 |
170 |
125 |
76 |
95 |
24 |
3 |
4 |
4-23 |
50 |
165 |
125 |
88 |
100 |
20 |
3 |
4 |
4-18 |
135 |
120 |
352 |
|
50 |
32 |
180 |
135 |
88 |
105 |
26 |
3 |
4 |
4-23 |
65 |
185 |
145 |
110 |
120 |
22 |
3 |
4 |
8-18 |
155 |
135 |
425 |
|
65 |
40 |
160 |
110 |
130 |
28 |
3 |
4 |
8-23 |
80 |
200 |
160 |
121 |
135 |
22 |
3 |
4 |
8-18 |
175 |
160 |
570 |
||
80 |
50 |
215 |
170 |
121 |
140 |
30 |
3 |
4 |
8-23 |
100 |
235 |
190 |
150 |
160 |
24 |
3 |
4.5 |
8-23 |
175 |
160 |
560 |
|
100 |
65 |
250 |
200 |
150 |
168 |
32 |
3 |
4.5 |
8-26 |
125 |
270 |
220 |
176 |
188 |
28 |
3 |
4.5 |
8-25 |
195 |
195 |
690 |
|
150 |
100 |
345 |
280 |
204 |
240 |
38 |
3 |
4.5 |
8-34 |
200 |
375 |
320 |
260 |
282 |
38 |
3 |
4.5 |
12-30 |
280 |
265 |
935 |
|
a48y-100 |
20 |
10 |
125 |
90 |
51 |
68 |
22 |
2 |
4 |
4-18 |
25 |
115 |
85 |
58 |
65 |
16 |
3 |
4 |
4-14 |
96 |
85 |
297 |
25 |
16 |
140 |
100 |
58 |
78 |
24 |
2 |
4 |
4-18 |
32 |
140 |
100 |
66 |
78 |
18 |
2 |
4 |
4-18 |
110 |
100 |
310 |
|
32 |
20 |
155 |
110 |
66 |
82 |
24 |
2 |
4 |
4-23 |
40 |
150 |
110 |
76 |
85 |
18 |
2 |
4 |
4-18 |
130 |
110 |
322 |
|
40 |
25 |
170 |
125 |
76 |
95 |
26 |
3 |
4 |
4-23 |
50 |
165 |
125 |
88 |
100 |
20 |
3 |
4 |
4-18 |
135 |
120 |
352 |
|
50 |
32 |
195 |
145 |
88 |
112 |
28 |
3 |
4 |
4-26 |
65 |
185 |
145 |
110 |
120 |
22 |
3 |
4 |
8-18 |
155 |
135 |
425 |
|
65 |
32 |
220 |
170 |
110 |
138 |
32 |
3 |
4 |
8-26 |
80 |
200 |
160 |
121 |
135 |
22 |
3 |
4 |
8-18 |
175 |
160 |
570 |
|
80 |
40 |
230 |
180 |
121 |
148 |
34 |
3 |
4 |
8-26 |
100 |
235 |
190 |
150 |
160 |
24 |
3 |
4.5 |
8-23 |
175 |
160 |
560 |
|
100 |
50 |
265 |
210 |
150 |
172 |
38 |
3 |
4.5 |
8-30 |
125 |
270 |
220 |
176 |
188 |
28 |
3 |
4.5 |
8-25 |
195 |
195 |
690 |
|
150 |
80 |
355 |
290 |
204 |
250 |
46 |
3 |
4.5 |
12-34 |
200 |
375 |
320 |
260 |
282 |
38 |
3 |
4.5 |
12-30 |
280 |
265 |
935 |