【帶扳手微啟式安全閥應用范圍和結構概述】
應用范圍:
帶扳手微啟式安全閥適用于工作溫度≤350℃的蒸汽、空氣等介質的設備或管路上。作為超壓保護裝置。連接法蘭標準按JB/T-94的系列1。
結構概述:
1、彈簧微啟式安全閥具有結構簡單、密封性能好、開啟壓力準確、排放能力大、回座壓差小、調整方便等特點。
2、噴嘴型閥座:閥座為位伐爾噴嘴型閥座,蒸汽流經閥座出口處時達到音速,排放系數大,閥座密封面堆焊鈷鉻鎢硬質合金,耐磨抗沖蝕,壽命長。
3、熱彈性閥瓣:閥瓣設計為熱彈性結構,利用其在介質壓力下微小的變形,提高密封能力,克服安全閥在介質壓力下臨近整定壓力時的前泄現象。閥瓣密封面采用先進的激光淬火技術,提高了硬度、耐磨性、抗沖抗性。
4、調節螺母:通過調整調節螺母,調整彈簧壓縮量,使閥門能夠很方便、很迅速地獲得準確的整定壓力。
5、背壓調整套:調整閥瓣背壓的輔助機構,通過背壓調整套調整,可獲得合適的回座壓差。上調時,使閥門背壓降低。下調時,使閥門背壓提高。
【帶扳手微啟式安全閥結構圖】

【帶扳手微啟式安全閥主要零件材料】
NO |
零件名稱 |
材料 |
1 |
閥體 |
WCB |
2 |
閥座 |
ZG2Cr13 |
3 |
調節圈 |
ZG2Cr13 |
4 |
閥瓣 |
2Cr13 |
5 |
導向套 |
2Cr13 |
6 |
閥蓋 |
ZG230-450 |
7 |
彈簧 |
50CrVA |
8 |
閥桿 |
2Cr13 |
9 |
扳手 |
ZG200-400 |
10 |
調整螺桿 |
45 |
11 |
保護罩 |
ZG200-400 |
|
密封面材料 |
"H"堆焊D507,"Y"堆焊Co基硬質合金 |
【帶扳手微啟式安全閥主要尺寸參數】
型號 |
公稱 通徑 |
do |
D |
K |
g |
g1 |
b |
f |
f1 |
Z-ød |
DN' |
D1 |
K1 |
g2 |
g' |
b1 |
f' |
f1' |
Z1-ød1 |
L |
L1 |
≈H |
A47H-16C |
20 |
15 |
105 |
75 |
|
55 |
16 |
2 |
|
4-14 |
20 |
105 |
75 |
55 |
|
16 |
2 |
|
4-14 |
100 |
85 |
270 |
25 |
20 |
115 |
85 |
|
65 |
16 |
2 |
|
4-14 |
25 |
115 |
85 |
65 |
|
16 |
2 |
|
4-14 |
100 |
85 |
270 |
32 |
25 |
140 |
100 |
|
78 |
18 |
2 |
|
4-18 |
32 |
140 |
100 |
78 |
|
18 |
2 |
|
4-18 |
115 |
100 |
312 |
40 |
32 |
150 |
110 |
|
85 |
18 |
3 |
|
4-18 |
40 |
150 |
110 |
85 |
|
18 |
3 |
|
4-18 |
120 |
110 |
320 |
50 |
40 |
165 |
125 |
|
100 |
20 |
3 |
|
4-18 |
50 |
165 |
125 |
100 |
|
20 |
3 |
|
4-18 |
135 |
120 |
390 |
65 |
50 |
185 |
145 |
|
120 |
20 |
3 |
|
4-18 |
65 |
185 |
145 |
120 |
|
20 |
3 |
|
4-18 |
140 |
130 |
395 |
80 |
65 |
200 |
160 |
|
135 |
20 |
3 |
|
8-18 |
80 |
200 |
160 |
135 |
|
20 |
3 |
|
8-18 |
160 |
135 |
400 |
100 |
80 |
220 |
180 |
|
155 |
22 |
3 |
|
8-18 |
100 |
220 |
180 |
155 |
|
22 |
3 |
|
8-18 |
170 |
160 |
600 |
125 |
100 |
250 |
210 |
|
185 |
22 |
3 |
|
8-18 |
125 |
250 |
210 |
185 |
|
22 |
3 |
|
8-18 |
190 |
190 |
620 |
150 |
125 |
285 |
240 |
|
210 |
24 |
3 |
|
8-23 |
150 |
285 |
240 |
210 |
|
24 |
3 |
|
8-23 |
205 |
195 |
625 |
200 |
150 |
340 |
295 |
|
265 |
26 |
3 |
|
12-23 |
200 |
340 |
295 |
265 |
|
26 |
3 |
|
12-23 |
240 |
230 |
798 |
250 |
200 |
405 |
355 |
|
320 |
30 |
3 |
|
12-26 |
250 |
405 |
355 |
320 |
|
30 |
3 |
|
12-26 |
350 |
320 |
981 |
300 |
250 |
460 |
410 |
|
375 |
30 |
4 |
|
12-26 |
300 |
460 |
410 |
375 |
|
30 |
4 |
|
12-26 |
350 |
320 |
1005 |
A47H-25 |
20 |
15 |
105 |
75 |
|
55 |
16 |
2 |
|
4-14 |
20 |
105 |
75 |
55 |
|
16 |
2 |
|
4-14 |
100 |
85 |
270 |
25 |
20 |
115 |
85 |
|
65 |
16 |
2 |
|
4-14 |
25 |
115 |
85 |
65 |
|
16 |
2 |
|
4-14 |
100 |
85 |
270 |
32 |
25 |
140 |
100 |
|
78 |
18 |
2 |
|
4-18 |
32 |
140 |
100 |
78 |
|
18 |
2 |
|
4-18 |
115 |
100 |
312 |
40 |
32 |
150 |
110 |
|
85 |
18 |
3 |
|
4-18 |
40 |
150 |
110 |
85 |
|
18 |
3 |
|
4-18 |
120 |
110 |
320 |
50 |
40 |
165 |
125 |
|
100 |
20 |
3 |
|
4-18 |
50 |
165 |
125 |
100 |
|
20 |
3 |
|
4-18 |
135 |
120 |
390 |
65 |
50 |
185 |
145 |
|
120 |
22 |
3 |
|
8-18 |
65 |
185 |
145 |
120 |
|
20 |
3 |
|
4-18 |
140 |
130 |
395 |
80 |
65 |
200 |
160 |
|
135 |
24 |
3 |
|
8-18 |
80 |
200 |
160 |
135 |
|
20 |
3 |
|
8-18 |
160 |
135 |
400 |
100 |
80 |
230 |
190 |
|
160 |
24 |
3 |
|
8-23 |
100 |
220 |
180 |
155 |
|
20 |
3 |
|
8-18 |
170 |
160 |
600 |
125 |
100 |
270 |
220 |
|
188 |
28 |
3 |
|
8-26 |
125 |
250 |
210 |
185 |
|
22 |
3 |
|
8-18 |
190 |
190 |
620 |
150 |
125 |
300 |
250 |
|
218 |
30 |
3 |
|
8-26 |
150 |
285 |
240 |
210 |
|
24 |
3 |
|
8-23 |
205 |
195 |
625 |
200 |
150 |
360 |
310 |
|
278 |
34 |
3 |
|
12-26 |
200 |
340 |
295 |
265 |
|
26 |
3 |
|
12-23 |
240 |
230 |
798 |
250 |
200 |
425 |
370 |
|
332 |
36 |
3 |
|
12-30 |
250 |
405 |
355 |
320 |
|
30 |
3 |
|
12-26 |
350 |
320 |
981 |
300 |
250 |
485 |
430 |
|
390 |
40 |
4 |
|
16-30 |
300 |
460 |
410 |
375 |
|
30 |
4 |
|
12-26 |
350 |
320 |
1005 |
A47H-40 |
20 |
15 |
105 |
75 |
51 |
55 |
16 |
2 |
4 |
4-14 |
20 |
105 |
75 |
55 |
|
16 |
2 |
|
4-14 |
100 |
85 |
270 |
25 |
20 |
115 |
85 |
58 |
65 |
16 |
2 |
4 |
4-14 |
25 |
115 |
85 |
65 |
|
16 |
2 |
|
4-14 |
100 |
85 |
270 |
32 |
25 |
140 |
100 |
66 |
78 |
18 |
2 |
4 |
4-18 |
32 |
140 |
100 |
78 |
|
18 |
2 |
|
4-18 |
115 |
100 |
312 |
40 |
32 |
150 |
110 |
76 |
85 |
18 |
3 |
4 |
4-18 |
40 |
150 |
110 |
85 |
|
18 |
3 |
|
4-18 |
120 |
110 |
320 |
50 |
40 |
165 |
125 |
88 |
100 |
20 |
3 |
4 |
4-18 |
50 |
165 |
125 |
100 |
|
20 |
3 |
|
4-18 |
135 |
120 |
390 |
65 |
50 |
185 |
145 |
110 |
120 |
22 |
3 |
4 |
8-18 |
65 |
185 |
145 |
120 |
|
20 |
3 |
|
4-18 |
140 |
130 |
395 |
80 |
65 |
200 |
160 |
121 |
135 |
22 |
3 |
4 |
8-18 |
80 |
200 |
160 |
135 |
|
20 |
3 |
|
8-18 |
160 |
135 |
400 |
100 |
80 |
235 |
190 |
150 |
160 |
24 |
3 |
4.5 |
8-23 |
100 |
220 |
180 |
155 |
|
22 |
3 |
|
8-18 |
170 |
160 |
600 |
125 |
100 |
270 |
220 |
176 |
188 |
28 |
3 |
4.5 |
8-26 |
125 |
250 |
210 |
185 |
|
22 |
3 |
|
8-18 |
190 |
190 |
620 |
150 |
125 |
300 |
250 |
204 |
218 |
30 |
3 |
4.5 |
8-26 |
150 |
285 |
240 |
210 |
|
24 |
3 |
|
8-23 |
205 |
195 |
625 |
200 |
150 |
375 |
320 |
260 |
282 |
38 |
3 |
4.5 |
12-30 |
200 |
340 |
295 |
265 |
|
26 |
3 |
|
12-23 |
240 |
230 |
798 |
250 |
200 |
450 |
385 |
313 |
345 |
42 |
3 |
4.5 |
12-34 |
250 |
405 |
355 |
320 |
|
30 |
3 |
|
12-26 |
350 |
320 |
981 |
300 |
250 |
515 |
450 |
364 |
408 |
46 |
4 |
4.5 |
16-34 |
300 |
460 |
410 |
375 |
|
30 |
4 |
|
12-26 |
350 |
320 |
1005 |
A47H-64 A47Y-64 |
20 |
15 |
130 |
90 |
51 |
68 |
20 |
2 |
4 |
4-18 |
20 |
105 |
75 |
55 |
51 |
16 |
2 |
4 |
4-14 |
100 |
95 |
301 |
25 |
20 |
140 |
100 |
58 |
78 |
22 |
2 |
4 |
4-18 |
25 |
115 |
85 |
65 |
58 |
16 |
2 |
4 |
4-14 |
100 |
95 |
301 |
32 |
25 |
155 |
110 |
66 |
82 |
24 |
2 |
4 |
4-23 |
32 |
140 |
100 |
78 |
66 |
18 |
2 |
4 |
4-18 |
115 |
105 |
312 |
40 |
32 |
170 |
125 |
76 |
95 |
24 |
3 |
4 |
4-23 |
40 |
150 |
110 |
85 |
76 |
18 |
3 |
4 |
4-18 |
135 |
115 |
366 |
50 |
40 |
180 |
135 |
88 |
105 |
26 |
3 |
4 |
4-23 |
50 |
165 |
125 |
100 |
88 |
20 |
3 |
4 |
4-18 |
160 |
125 |
396 |
65 |
50 |
205 |
160 |
110 |
130 |
28 |
3 |
4 |
8-23 |
65 |
185 |
145 |
120 |
110 |
22 |
3 |
4 |
8-18 |
175 |
160 |
570 |
80 |
65 |
215 |
170 |
121 |
140 |
30 |
3 |
4 |
8-23 |
80 |
200 |
160 |
135 |
121 |
22 |
3 |
4 |
8-18 |
175 |
160 |
565 |
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 |
597 |
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 |
738 |
A47H-10 A47Y-100 |
20 |
15 |
130 |
90 |
51 |
68 |
22 |
2 |
4 |
4-18 |
20 |
105 |
75 |
55 |
51 |
16 |
2 |
4 |
4-14 |
100 |
95 |
301 |
25 |
20 |
140 |
100 |
58 |
78 |
24 |
2 |
4 |
4-18 |
25 |
115 |
85 |
65 |
58 |
16 |
2 |
4 |
4-14 |
100 |
95 |
301 |
32 |
25 |
155 |
110 |
66 |
82 |
24 |
2 |
4 |
4-23 |
32 |
140 |
100 |
78 |
66 |
18 |
2 |
4 |
4-18 |
115 |
105 |
312 |
40 |
32 |
170 |
125 |
76 |
95 |
26 |
3 |
4 |
4-23 |
40 |
150 |
110 |
85 |
76 |
18 |
3 |
4 |
4-18 |
135 |
115 |
366 |
50 |
40 |
195 |
145 |
88 |
112 |
28 |
3 |
4 |
4-26 |
50 |
165 |
125 |
100 |
88 |
20 |
3 |
4 |
4-18 |
160 |
125 |
396 |
65 |
50 |
220 |
170 |
110 |
138 |
32 |
3 |
4 |
8-26 |
65 |
185 |
145 |
120 |
110 |
22 |
3 |
4 |
8-18 |
175 |
160 |
570 |
80 |
65 |
230 |
180 |
121 |
148 |
34 |
3 |
4 |
8-26 |
80 |
200 |
160 |
135 |
121 |
22 |
3 |
4 |
8-18 |
175 |
160 |
565 |
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 |
597 |
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 |
738 |
正鋼溫馨提示:
1、請在訂貨時提供詳細型號、壓力、口徑、材質、介質、溫度、交貨地、交貨時間。
2、根據管道工況需要:決定選用(彈簧全啟式)或(彈簧微啟式)還是先導式,脈沖式等。
3、對安全閥的連接方式:可選用螺紋(內螺紋或外螺紋)法蘭式,焊接式等。
4、正鋼專業為你打造適合您的安全閥產品,歡迎你的來電400 6868 625 或瀏覽正鋼官方網站http://www.xacct.net.cn