A41H弹簧微启封闭式安全阀
A41H型适用于工作温度≤
介质的设备或管路上,作为超压保护装置。连接法兰标准按jb/t……94/系列。
结构简述
1、弹簧微启式安全阀具有结构简单、密封性能好、开启压力准确、排放能力大、回座压差小、调整方便等特点。
2、喷嘴型阀座:阀座为位伐尔喷嘴型阀座,蒸汽流经阀座出口处时达到音速,排放系数大,阀座密封面堆焊钴铬钨硬质合金,耐磨抗冲蚀,寿命长。
3、热弹性阀瓣:阀瓣设计为热弹性结构,利用其在介质压力下微小的变形,提高密封能力,克服安全阀在介质压力下临近整定压力时的前泄现象。阀瓣密封面采用先进的激光淬火技术,提高了硬度、耐磨性、抗冲抗性。
4、调节螺母:通过调整调节螺母,调整弹簧压缩量,使阀门能够很方便、很迅速地获得准确的整定压力。
5、背压调整套:调整阀瓣背压的辅助机构,通过背压调整套调整,可获得合适的回座压差。上调时,使阀门背压降低。下调时,使阀门背压提高。
安装说明
1、安全阀必须垂直安装,并*好直接安装在容器或管道的接头上。接头内径应不小于安全阀的进口通径。
2、安全阀的出口必须装设适当的膨胀节,以防止排放管的热膨胀给安全阀带来不应有的热应力。排放管内径应比阀门出口直径大,长度尽可能短,避免拐弯。排放管及膨胀节重量不应作用在安全阀上,应固定在建筑上。排放管的中心线与阀体的中心线间距离尽可能的短。对每台安全阀都应单独装设排放管。
3、消声器的出口处要有足够的面积,防止产生背压影响阀门的排放能力。
主要零部件材料
no |
零件名称 |
a41h-c/ka41y-c材料 |
a41y-p/ka41y-p材料 |
a41y-r/ka41y-r材料 |
1 |
阀体 |
wcb |
zg1cr18ni9ti |
zg1cr18ni12mo2ti |
2 |
阀座 |
zg2cr13/1cr18ni9ti |
zg1cr18ni9ti |
zg1cr18ni12mo2ti |
3 |
调节圈 |
zg2cr13/1cr18ni9ti |
zg1cr18ni9ti |
zg1cr18ni12mo2ti |
4 |
阀瓣 |
2cr13/1cr18ni9ti |
1cr18ni9ti |
1cr18ni12mo2ti |
5 |
导向套 |
zg2cr13/1cr18ni9ti |
zg1cr18ni9ti |
zg1cr18ni12mo2ti |
6 |
阀盖 |
zg230-450 |
zg230-450 |
zg230-450 |
7 |
弹簧 |
50crva |
50crva包覆氟塑料 |
50crva包覆氟塑料 |
8 |
阀杆 |
2cr13 |
2cr13 |
1cr18ni12mo2ti |
9 |
调整螺杆 |
45 |
2cr13 |
2cr13 |
10 |
保护罩 |
zg200-400 |
zg200-400 |
zg200-400 |
|
密封面材料 |
堆焊d507 |
堆焊co基硬质合金 |
外形尺寸和连接尺寸
型号 |
公称通径 |
do |
D |
K |
g |
g1 |
b |
f |
f1 |
Z-?d |
DN’ |
D1 |
K1 |
g2 |
g’ |
b1 |
f’ |
f |
Z1-?d1 |
L |
L1 |
≈H |
A41H |
20 |
15 |
105 |
75 |
- |
55 |
16 |
2 |
- |
4-14 |
20 |
105 |
75 |
55 |
- |
16 |
2 |
- |
4-14 |
100 |
85 |
276 |
25 |
20 |
115 |
85 |
- |
65 |
16 |
2 |
- |
4-14 |
25 |
115 |
85 |
65 |
- |
16 |
2 |
- |
4-14 |
100 |
85 |
276 |
|
32 |
25 |
140 |
100 |
- |
78 |
18 |
2 |
- |
4-18 |
32 |
140 |
100 |
78 |
- |
18 |
2 |
- |
4-18 |
115 |
100 |
285 |
|
40 |
32 |
150 |
110 |
- |
85 |
18 |
3 |
- |
4-18 |
40 |
150 |
110 |
85 |
- |
18 |
3 |
- |
4-18 |
120 |
110 |
292 |
|
50 |
40 |
165 |
125 |
- |
100 |
20 |
3 |
- |
4-18 |
50 |
165 |
125 |
100 |
- |
20 |
3 |
- |
4-18 |
135 |
120 |
370 |
|
65 |
50 |
185 |
145 |
- |
120 |
20 |
3 |
- |
4-18 |
65 |
185 |
145 |
120 |
- |
20 |
3 |
- |
4-18 |
140 |
130 |
375 |
|
80 |
65 |
200 |
160 |
- |
135 |
20 |
3 |
- |
8-18 |
80 |
200 |
160 |
135 |
- |
20 |
3 |
- |
8-18 |
160 |
135 |
373 |
|
100 |
80 |
220 |
180 |
- |
155 |
22 |
3 |
- |
8-18 |
100 |
220 |
180 |
155 |
- |
22 |
3 |
- |
8-18 |
170 |
160 |
513 |
|
125 |
100 |
250 |
210 |
- |
185 |
22 |
3 |
- |
8-18 |
125 |
250 |
210 |
185 |
- |
22 |
3 |
- |
8-18 |
190 |
190 |
560 |
|
150 |
125 |
285 |
240 |
- |
210 |
24 |
3 |
- |
8-23 |
150 |
285 |
240 |
210 |
- |
24 |
3 |
- |
8-23 |
205 |
195 |
570 |
|
200 |
150 |
340 |
295 |
- |
265 |
26 |
3 |
- |
12-23 |
200 |
340 |
295 |
265 |
- |
26 |
3 |
- |
12-23 |
240 |
230 |
717 |
|
250 |
200 |
405 |
355 |
- |
320 |
30 |
3 |
- |
12-26 |
250 |
405 |
355 |
320 |
- |
30 |
3 |
- |
12-26 |
350 |
320 |
940 |
|
300 |
250 |
460 |
410 |
- |
375 |
30 |
4 |
- |
12-26 |
300 |
460 |
410 |
375 |
- |
30 |
4 |
- |
12-26 |
350 |
320 |
980 |
|
A41H-25 |
20 |
15 |
105 |
75 |
- |
55 |
16 |
2 |
- |
4-14 |
20 |
105 |
75 |
55 |
- |
16 |
2 |
- |
4-14 |
100 |
85 |
276 |
25 |
20 |
115 |
85 |
- |
65 |
16 |
2 |
- |
4-14 |
25 |
115 |
85 |
65 |
- |
16 |
2 |
- |
4-14 |
100 |
85 |
276 |
|
32 |
25 |
140 |
100 |
- |
78 |
18 |
2 |
- |
4-18 |
32 |
140 |
100 |
78 |
- |
18 |
2 |
- |
4-18 |
115 |
100 |
285 |
|
40 |
32 |
150 |
110 |
- |
85 |
18 |
3 |
- |
4-18 |
40 |
150 |
110 |
85 |
- |
18 |
3 |
- |
4-18 |
120 |
110 |
292 |
|
50 |
40 |
165 |
125 |
- |
100 |
20 |
3 |
- |
4-18 |
50 |
165 |
125 |
100 |
- |
20 |
3 |
- |
4-18 |
135 |
120 |
370 |
|
65 |
50 |
185 |
145 |
- |
120 |
22 |
3 |
- |
8-18 |
65 |
185 |
145 |
120 |
- |
20 |
3 |
- |
4-18 |
140 |
130 |
375 |
|
80 |
65 |
200 |
160 |
- |
135 |
24 |
3 |
- |
8-18 |
80 |
200 |
160 |
135 |
- |
20 |
3 |
- |
8-18 |
160 |
135 |
373 |
|
100 |
80 |
230 |
190 |
- |
160 |
24 |
3 |
- |
8-23 |
100 |
220 |
180 |
155 |
- |
20 |
3 |
- |
8-18 |
170 |
160 |
513 |
|
125 |
100 |
270 |
220 |
- |
188 |
28 |
3 |
- |
8-26 |
125 |
250 |
210 |
185 |
- |
22 |
3 |
- |
8-18 |
190 |
190 |
560 |
|
150 |
125 |
300 |
250 |
- |
218 |
30 |
3 |
- |
8-26 |
150 |
285 |
240 |
210 |
- |
24 |
3 |
- |
8-23 |
205 |
195 |
570 |
|
200 |
150 |
360 |
310 |
- |
278 |
34 |
3 |
- |
12-26 |
200 |
340 |
295 |
265 |
- |
26 |
3 |
- |
12-23 |
240 |
230 |
717 |
|
250 |
200 |
425 |
370 |
- |
332 |
36 |
3 |
- |
12-30 |
250 |
405 |
355 |
320 |
- |
30 |
3 |
- |
12-26 |
350 |
320 |
940 |
|
300 |
250 |
485 |
430 |
- |
390 |
40 |
4 |
- |
16-30 |
300 |
460 |
410 |
375 |
- |
30 |
4 |
- |
12-26 |
350 |
320 |
980 |
|
A41H-40 |
20 |
15 |
105 |
75 |
51 |
55 |
16 |
2 |
4 |
4-14 |
20 |
105 |
75 |
55 |
- |
16 |
2 |
- |
4-14 |
100 |
85 |
276 |
25 |
20 |
115 |
85 |
58 |
65 |
16 |
2 |
4 |
4-14 |
25 |
115 |
85 |
65 |
- |
16 |
2 |
- |
4-14 |
100 |
85 |
276 |
|
32 |
25 |
140 |
100 |
66 |
78 |
18 |
2 |
4 |
4-18 |
32 |
140 |
100 |
78 |
- |
18 |
2 |
- |
4-18 |
115 |
100 |
285 |
|
40 |
32 |
150 |
110 |
76 |
85 |
18 |
3 |
4 |
4-18 |
40 |
150 |
110 |
85 |
- |
18 |
3 |
- |
4-18 |
120 |
110 |
292 |
|
50 |
40 |
165 |
125 |
88 |
100 |
20 |
3 |
4 |
4-18 |
50 |
165 |
125 |
100 |
- |
20 |
3 |
- |
4-18 |
135 |
120 |
370 |
|
65 |
50 |
185 |
145 |
110 |
120 |
22 |
3 |
4 |
8-18 |
65 |
185 |
145 |
120 |
- |
20 |
3 |
- |
4-18 |
140 |
130 |
375 |
|
80 |
65 |
200 |
160 |
121 |
135 |
22 |
3 |
4 |
8-18 |
80 |
200 |
160 |
135 |
- |
20 |
3 |
- |
8-18 |
160 |
135 |
373 |
|
100 |
80 |
235 |
190 |
150 |
160 |
24 |
3 |
4.5 |
8-23 |
100 |
220 |
180 |
155 |
- |
22 |
3 |
- |
8-18 |
170 |
160 |
513 |
|
125 |
100 |
270 |
220 |
176 |
188 |
28 |
3 |
4.5 |
8-26 |
125 |
250 |
210 |
185 |
- |
22 |
3 |
- |
8-18 |
190 |
190 |
560 |
|
150 |
125 |
300 |
250 |
204 |
218 |
30 |
3 |
4.5 |
8-26 |
150 |
285 |
240 |
210 |
- |
24 |
3 |
- |
8-23 |
205 |
195 |
570 |
|
200 |
150 |
375 |
320 |
260 |
282 |
38 |
3 |
4.5 |
12-30 |
200 |
340 |
295 |
265 |
- |
26 |
3 |
- |
12-23 |
240 |
230 |
717 |
|
250 |
200 |
450 |
385 |
313 |
345 |
42 |
3 |
4.5 |
12-34 |
250 |
405 |
355 |
320 |
- |
30 |
3 |
- |
12-26 |
350 |
320 |
940 |
|
300 |
250 |
515 |
450 |
364 |
408 |
46 |
4 |
4.5 |
16-34 |
300 |
460 |
410 |
375 |
- |
30 |
4 |
- |
12-26 |
350 |
320 |
980 |
|
A41H-64 |
20 |
15 |
130 |
90 |
51 |
68 |
20 |
2 |
4 |
4-18 |
20 |
105 |
75 |
55 |
51 |
16 |
2 |
4 |
4-14 |
100 |
95 |
268 |
25 |
20 |
140 |
100 |
58 |
78 |
22 |
2 |
4 |
4-18 |
25 |
115 |
85 |
65 |
58 |
16 |
2 |
4 |
4-14 |
100 |
95 |
268 |
|
32 |
25 |
155 |
110 |
66 |
82 |
24 |
2 |
4 |
4-23 |
32 |
140 |
100 |
78 |
66 |
18 |
2 |
4 |
4-18 |
115 |
105 |
279 |
|
40 |
32 |
170 |
125 |
76 |
95 |
24 |
3 |
4 |
4-23 |
40 |
150 |
110 |
85 |
76 |
18 |
3 |
4 |
4-18 |
135 |
115 |
330 |
|
50 |
40 |
180 |
135 |
88 |
105 |
26 |
3 |
4 |
4-23 |
50 |
165 |
125 |
100 |
88 |
20 |
3 |
4 |
4-18 |
160 |
125 |
360 |
|
65 |
50 |
205 |
160 |
110 |
130 |
28 |
3 |
4 |
8-23 |
65 |
185 |
145 |
120 |
110 |
22 |
3 |
4 |
8-18 |
175 |
160 |
503 |
|
80 |
65 |
215 |
170 |
121 |
140 |
30 |
3 |
4 |
8-23 |
80 |
200 |
160 |
135 |
121 |
22 |
3 |
4 |
8-18 |
175 |
160 |
498 |
|
100 |
80 |
250 |
200 |
150 |
168 |
32 |
3 |
4.5 |
8-26 |
100 |
235 |
190 |
160 |
150 |
24 |
3 |
4.5 |
8-23 |
190 |
180 |
530 |
|
150 |
100 |
345 |
280 |
204 |
240 |
38 |
3 |
4.5 |
8-34 |
150 |
300 |
250 |
218 |
204 |
30 |
3 |
4.5 |
8-26 |
280 |
260 |
657 |
|
, A41H-100 |
20 |
15 |
130 |
90 |
51 |
68 |
22 |
2 |
4 |
4-18 |
20 |
105 |
75 |
55 |
51 |
16 |
2 |
4 |
4-14 |
100 |
95 |
268 |
25 |
20 |
140 |
100 |
58 |
78 |
24 |
2 |
4 |
4-18 |
25 |
115 |
85 |
65 |
58 |
16 |
2 |
4 |
4-14 |
100 |
95 |
268 |
|
32 |
25 |
155 |
110 |
66 |
82 |
24 |
2 |
4 |
4-23 |
32 |
140 |
100 |
78 |
66 |
18 |
2 |
4 |
4-18 |
115 |
105 |
279 |
|
40 |
32 |
170 |
125 |
76 |
95 |
26 |
3 |
4 |
4-23 |
40 |
150 |
110 |
85 |
76 |
18 |
3 |
4 |
4-18 |
135 |
115 |
330 |
|
50 |
40 |
195 |
145 |
88 |
112 |
28 |
3 |
4 |
4-26 |
50 |
165 |
125 |
100 |
88 |
20 |
3 |
4 |
4-18 |
160 |
125 |
360 |
|
65 |
50 |
220 |
170 |
110 |
138 |
32 |
3 |
4 |
8-26 |
65 |
185 |
145 |
120 |
110 |
22 |
3 |
4 |
8-18 |
175 |
160 |
503 |
|
80 |
65 |
230 |
180 |
121 |
148 |
34 |
3 |
4 |
8-26 |
80 |
200 |
160 |
135 |
121 |
22 |
3 |
4 |
8-18 |
175 |
160 |
498 |
|
100 |
80 |
265 |
210 |
150 |
172 |
38 |
3 |
4.5 |
8-30 |
100 |
235 |
190 |
160 |
150 |
24 |
3 |
4.5 |
8-23 |
190 |
180 |
530 |
|
150 |
100 |
355 |
290 |
204 |
250 |
46 |
3 |
4.5 |
12-34 |
150 |
300 |
250 |
218 |
204 |
30 |
3 |
4.5 |
8-26 |
280 |
260 |
657 |