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■ J41H法兰式截止阀产品概述:
截止阀(stop valve,Globe Valve)的启闭件是塞形的阀瓣,密封面呈平面或锥面,阀瓣沿流体的中心线作直线运动。阀杆的运动形式,有升降杆式(阀杆升降,手轮不升降),也有升降旋转杆式(手轮与阀杆一起旋转升降,螺母设在阀体上)。截止阀只适用于全开和全关,不允许作调节和节流。
截止阀属于强制密封式阀门,所以在阀门关闭时,必须向阀瓣施加压力,以强制密封面不泄漏。当介质由阀瓣下方进入阀门时,操作力所需要克服的阻力,是阀杆和填料的摩擦力与由介质的压力所产生的推力,关阀门的力比开阀门的力大,所以阀杆的直径要大,否则会发生阀杆**弯的故障。近年来,从自密封的阀门出现后,截止阀的介质流向就改由阀瓣上方进入阀腔,这时在介质压力作用下,关阀门的力小,而开阀门的力大,阀杆的直径可以相应地减少。同时,在介质作用下,这种形式的阀门也较严密。我国阀门“三化给”曾规定,截止阀的流向,一律采用自上而下。
截止阀开启时,阀瓣的开启高度,为公称直径的25%~30%时,流量已达到较大,表示阀门已达全开位置。所以截止阀的全开位置,应由阀瓣的行程来决定。
■ J41H法兰式截止阀结构特点:
1、法兰截止阀选材考究,符合国内、外相关标准,结构合理,造型美观。
2、法兰截止阀阀瓣、阀座密封面采用铁基合金堆焊或司太立(Stellite)钴基硬质合金堆焊而成,耐磨、耐高温、耐腐蚀、抗擦伤性能好,使用寿命长。
4、法兰截止阀阀杆经调质及表面氮化处理,有良好的抗腐蚀性和抗擦伤性。
5、法兰截止阀可采用各种配管法兰标准及法兰密封面型式,满足各种工程需要及用户要求。
6、法兰截止阀阀体材料品种齐全,填料、垫片可根据实际工况或用户要求合理选配,能适用于各种压力、温度及介质工况。
7、法兰截止阀倒密封采用螺纹连接密封座或本体堆焊奥氏体不锈钢而成,密封可靠,更换填料可在不停机情况下进行,方便快捷,不影响系统运行。
■ 法兰式截止阀执行标准 Administer Standard
设计与制造 Design and Manufacture |
结构长度 |
法兰尺寸 |
压力-温度 Pressure Temperature Lating |
试验-检验 Inspection And Test |
GB122235 |
GB12221 |
GB9113 JB79 |
GB9131 |
GB/T13927 JB/T9092 |
■ 法兰式截止阀压力试验 Pressure Test
公称压力NominalPressure |
1.6 |
2.5 |
4.0 |
6.4 |
10.0 |
16.0 |
强度试验 Shell Test |
2.4 |
3.8 |
6.0 |
9.6 |
15.0 |
24.0 |
水密封试验 Water Seal Test |
1.8 |
2.8 |
4.4 |
7.0 |
11.0 |
18.0 |
上密封试验Backseat Test |
1.8 |
2.8 |
4.4 |
7.0 |
11.0 |
18.0 |
气密封试验 Air Seal Test |
0.5-0.7 |
■ 法兰式截止阀主要零件材料及性能 Main Part Materials and Property
体、盖、板 Body Cover Disc |
阀杆 |
密封面Sealing Face |
垫片 |
填料 |
工作温度℃Working Temperature |
适用介质Suitable Medium |
WCB |
2Cr13 |
13Cr
STL
木体材料
With Body
Material
尼龙
Nylon |
增强柔性石墨
Enhanced Flexible Graphite
13Cr/柔性石墨
1Cr13/Flexible Graphite
08软钢
08 Soft Steal
0Cr18Ni9Ti
0Cr17Ni12Mo2Ti
XD550F(T)
PTFE |
柔性石墨
增强柔性石墨
Flexible Graphite
Enhanced Flexible Graphite
SFB/260
SFP/260
PTFE
|
≤425 |
水
蒸汽
油品
Water
Steam
Petroleum
Ptoducts |
WC1 |
38CrMoAl
25Cr2MoV |
≤450 |
||||
WC6 |
≤540 |
|||||
WC9 |
≤570 |
|||||
C5 C12 |
≤540 |
|||||
ZGCr5Mo |
≤200 |
硝酸类Nitric acid |
||||
ZG1Cr18Ni9Ti |
1Cr18Ni9Ti |
|||||
≤200 |
醋酸类Acetic acid |
|||||
ZG1Cr18Ni12Mo2Ti |
1Cr18Ni12Mo2Ti |
■ 法兰截止阀规格 主要尺寸和重量 Size Main Dimensions and Weight (mm kg) :
1.6MPa |
DN |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
Do |
重量Weight |
凸面
法兰
16C |
10 |
130 |
90 |
60 |
40 |
14 |
4-14 |
198 |
120 |
4.9 |
15 |
130 |
95 |
65 |
45 |
14 |
4-14 |
218 |
120 |
5.3 |
|
20 |
150 |
105 |
75 |
55 |
14 |
4-14 |
258 |
140 |
7.0 |
|
25 |
160 |
115 |
85 |
65 |
14 |
4-14 |
275 |
160 |
7.4 |
|
32 |
180 |
135 |
100 |
78 |
16 |
4-18 |
280 |
180 |
8.3 |
|
40 |
200 |
145 |
110 |
85 |
16 |
4-18 |
330 |
200 |
12.6 |
|
50 |
230 |
160 |
125 |
100 |
16 |
4-18 |
350 |
240 |
14 |
|
65 |
290 |
180 |
145 |
120 |
18 |
4-18 |
400 |
280 |
22.7 |
|
80 |
310 |
195 |
160 |
135 |
20 |
8-18 |
355 |
280 |
29 |
|
100 |
350 |
215 |
180 |
155 |
20 |
8-18 |
415 |
320 |
32.8 |
|
125 |
400 |
245 |
210 |
185 |
22 |
8-18 |
460 |
360 |
79.5 |
|
150 |
480 |
280 |
240 |
210 |
24 |
8-23 |
510 |
400 |
93 |
|
200 |
600 |
335 |
295 |
265 |
26 |
12-23 |
710 |
400 |
179 |
|
250 |
622 |
405 |
355 |
320 |
30 |
12-25 |
786 |
450 |
441 |
|
300 |
698 |
460 |
410 |
375 |
30 |
12-25 |
925 |
500 |
646 |
■ 法兰截止阀规格 主要尺寸和重量 Size Main Dimensions and Weight (mm kg)
2.5MPa |
DN |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
Do |
重量Weight |
凸面法兰
25C |
10 |
130 |
90 |
60 |
40 |
16 |
4-14 |
198 |
120 |
4.9 |
15 |
130 |
95 |
65 |
45 |
16 |
4-14 |
218 |
120 |
5.3 |
|
20 |
150 |
105 |
75 |
55 |
16 |
4-14 |
258 |
140 |
7.0 |
|
25 |
160 |
115 |
85 |
65 |
16 |
4-14 |
275 |
160 |
7.4 |
|
32 |
180 |
135 |
100 |
78 |
18 |
4-18 |
280 |
180 |
8.3 |
|
40 |
200 |
145 |
110 |
85 |
18 |
4-18 |
330 |
200 |
12.6 |
|
50 |
230 |
160 |
125 |
100 |
20 |
8-18 |
350 |
240 |
16 |
|
65 |
290 |
180 |
145 |
120 |
22 |
8-18 |
400 |
280 |
25 |
|
80 |
310 |
195 |
160 |
135 |
22 |
8-23 |
355 |
280 |
30 |
|
100 |
350 |
230 |
190 |
160 |
24 |
8-25 |
415 |
320 |
34.8 |
|
125 |
400 |
270 |
220 |
188 |
28 |
8-25 |
460 |
360 |
89.5 |
|
150 |
480 |
300 |
250 |
218 |
30 |
12-25 |
510 |
400 |
99 |
|
200 |
600 |
360 |
310 |
278 |
34 |
12-25 |
710 |
400 |
181 |
|
250 |
622 |
425 |
370 |
332 |
36 |
12-30 |
786 |
450 |
445 |
|
300 |
698 |
485 |
430 |
390 |
40 |
16-30 |
925 |
500 |
651 |
■ 法兰截止阀规格 主要尺寸和重量 Size Main Dimensions and Weight (mm kg)
4.0MPa |
DN |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
D0 |
重量Weight |
凹凸法兰MFM
J41H J41Y J41W J41F J41N 40C 40P 40R 40I |
20 |
150 |
105 |
75 |
51 |
16 |
4-14 |
275 |
140 |
7 |
25 |
160 |
115 |
85 |
58 |
16 |
4-14 |
285 |
160 |
9 |
|
32 |
180 |
135 |
100 |
66 |
18 |
4-18 |
302 |
180 |
12 |
|
40 |
200 |
145 |
110 |
76 |
18 |
4-18 |
355 |
200 |
17 |
|
50 |
230 |
160 |
125 |
88 |
20 |
4-18 |
373 |
240 |
24 |
|
65 |
290 |
180 |
145 |
110 |
22 |
8-18 |
408 |
280 |
33 |
|
80 |
310 |
195 |
160 |
121 |
22 |
8-18 |
436 |
320 |
44 |
|
100 |
350 |
230 |
190 |
150 |
24 |
8-23 |
480 |
360 |
60 |
|
125 |
400 |
270 |
220 |
176 |
28 |
8-25 |
588 |
400 |
90 |
|
150 |
480 |
300 |
250 |
204 |
30 |
8-25 |
611 |
400 |
100 |
|
200 |
533 |
375 |
320 |
260 |
38 |
12-30 |
720 |
400 |
190 |
|
6.4MPa |
20 |
190 |
125 |
90 |
51 |
20 |
4-18 |
228 |
160 |
13 |
凹凸法兰MFM
J41H J41Y J41W J41F J41N
64C 64P 64R 64I |
25 |
210 |
135 |
100 |
58 |
22 |
4-18 |
275 |
180 |
15 |
32 |
230 |
150 |
110 |
66 |
24 |
4-23 |
325 |
200 |
19 |
|
40 |
260 |
165 |
125 |
76 |
24 |
4-23 |
360 |
240 |
25 |
|
50 |
300 |
175 |
135 |
88 |
26 |
4-23 |
410 |
280 |
35 |
|
65 |
340 |
200 |
160 |
110 |
28 |
8-23 |
450 |
320 |
48 |
|
80 |
380 |
210 |
170 |
121 |
30 |
8-23 |
485 |
360 |
56 |
|
100 |
430 |
250 |
200 |
150 |
32 |
8-25 |
537 |
400 |
125 |
|
125 |
500 |
295 |
240 |
176 |
36 |
8-30 |
631 |
400 |
130 |
|
150 |
550 |
340 |
280 |
204 |
38 |
8-34 |
646 |
450 |
160 |
|
200 |
650 |
405 |
345 |
260 |
44 |
12-34 |
813 |
500 |
285 |
|
10.0MPa |
10 |
170 |
100 |
70 |
35 |
20 |
4-14 |
198 |
120 |
6 |
凹凸法兰MFM
J41H J41Y J41W J41F J41N
100C 100P 100R 100I
|
15 |
170 |
105 |
75 |
40 |
20 |
4-14 |
202 |
140 |
11 |
20 |
190 |
125 |
90 |
51 |
22 |
4-18 |
228 |
160 |
13 |
|
25 |
210 |
135 |
100 |
58 |
24 |
4-18 |
250 |
180 |
14 |
|
32 |
230 |
150 |
110 |
66 |
24 |
4-23 |
326 |
220 |
16 |
|
40 |
260 |
165 |
125 |
76 |
26 |
4-23 |
359 |
240 |
30 |
|
50 |
300 |
195 |
145 |
88 |
28 |
4-25 |
414 |
280 |
50 |
|
65 |
340 |
220 |
170 |
110 |
32 |
8-25 |
434 |
320 |
65 |
|
80 |
380 |
230 |
180 |
121 |
34 |
8-25 |
547 |
400 |
100 |
|
100 |
430 |
265 |
210 |
150 |
38 |
8-30 |
621 |
450 |
116 |
|
125 |
500 |
310 |
250 |
176 |
42 |
8-34 |
732 |
450 |
150 |
|
150 |
550 |
350 |
290 |
204 |
46 |
12-34 |
840 |
500 |
300 |
|
200 |
650 |
430 |
360 |
260 |
54 |
12-41 |
925 |
550 |
600 |
|
16.0 |
15 |
170 |
110 |
75 |
40 |
24 |
4-18 |
148 |
140 |
12 |
环槽法兰RTJ J41H J41Y J41W
160C 160P 160R 160I |
20 |
190 |
130 |
90 |
51 |
26 |
4-23 |
156 |
160 |
15 |
25 |
210 |
140 |
100 |
58 |
28 |
4-23 |
175 |
180 |
17 |
|
32 |
230 |
165 |
115 |
66 |
30 |
4-25 |
200 |
200 |
21 |
|
40 |
260 |
175 |
125 |
76 |
32 |
4-27 |
231 |
240 |
31 |
|
50 |
300 |
215 |
165 |
88 |
36 |
8-25 |
262 |
250 |
53 |
|
65 |
340 |
245 |
190 |
110 |
44 |
8-30 |
303 |
320 |
70 |
|
80 |
380 |
260 |
205 |
121 |
46 |
8-30 |
341 |
400 |
100 |
|
100 |
430 |
300 |
240 |
150 |
48 |
8-34 |
485 |
450 |
120
|