美標(biāo)止回閥用于工業(yè)管道上作阻止介質(zhì)逆流的裝置。是依靠介質(zhì)本身流動(dòng)而自動(dòng)開(kāi)、閉閥瓣，用來(lái)防止介質(zhì)倒流的閥門(mén)，止回閥主要可分為旋啟式止回閥（依重心旋轉(zhuǎn)）與升降式止回閥（沿軸線移動(dòng)）。
產(chǎn)品型號(hào)：H41W(H)
公稱(chēng)尺寸：1/2”-20”
公稱(chēng)壓力：150Lb-600Lb 10K-40K
閥體材質(zhì)：WCB、CF8、CF8M、CF3、CF3M
應(yīng)用規(guī)范
結(jié)構(gòu)長(zhǎng)度 ANSI B16.10 設(shè)計(jì)標(biāo)準(zhǔn) API6D&BS1868
法蘭尺寸 ANSI B16.5 檢驗(yàn)標(biāo)準(zhǔn) API598
美標(biāo)止回閥主要零件及材質(zhì)
|
NO.
|
零件名稱(chēng)
|
Qty.
|
材料
|
NO.
|
零件名稱(chēng)
|
Qty.
|
材料
|
|
1
|
閥體
|
1
|
WCB
|
9 | 銘牌 | 1 | 304 |
|
2
|
閥座
|
2
|
A105+HF
|
10 | 墊片 | 1 | 304不銹鋼+柔性石墨 |
|
3
|
閘瓣
|
1
|
WCB+F6
|
11 | 閥蓋 | 1 | WCB |
|
4
|
閥桿 |
1
|
WCB | 12 | 螺柱 | A193 B7 | |
|
5
|
墊片 |
1
|
A276 410 | 13 | 螺母 | A194 2H | |
|
6
|
螺母 |
1
|
A276 410 | 14 | 吊環(huán) | 1 | A29 1035 |
|
7
|
銷(xiāo)軸 |
1
|
A276 410 | 15 | 墊片 | 1 | 1008 |
|
8
|
鉚釘 |
2
|
304 | 16 | 螺塞 | 1 | A276 410 |
美標(biāo)止回閥主要連接尺寸及重量
|
NPS
d |
in
|
2
|
2-1/2
|
3
|
4
|
5
|
6
|
8
|
10
|
12
|
14
|
16
|
18
|
20
|
|
|
mm
|
51
|
64
|
76
|
102
|
127
|
152
|
203
|
254
|
305
|
337
|
387
|
438
|
489
|
||
|
L-L1
(RF-BW) |
in
|
8.00 | 8.50 | 9.50 | 11.50 | 13.00 | 14.00 | 19.50 | 24.50 | 27.50 | 31.00 | 34.00 | 38.50 | 38.50 | |
|
mm
|
203 | 216 | 241 | 292 | 330 | 356 | 495 | 622 | 698 | 787 | 864 | 978 | 978 | ||
|
L2
(RTJ) |
in
|
8.50 | 9.00 | 10.00 | 12.00 | 13.50 | 14.50 | 20.00 | 25.00 | 28.00 | 31.50 | 34.50 | 39.00 | 39.00 | |
|
mm
|
216 | 229 | 254 | 305 | 343 | 368 | 508 | 635 | 711 | 800 | 876 | 991 | 991 | ||
|
d1
|
in
|
3.62 | 4.13 | 5.00 | 6.18 | 7.32 | 8.50 | 10.63 | 12.76 | 15.00 | 16.26 | 18.50 | 20.98 | 22.99 | |
|
mm
|
92 | 105 | 127 | 157 | 186 | 216 | 270 | 324 | 381 | 413 | 470 | 533 | 584 | ||
|
d2
|
in
|
4.75 | 5.50 | 6.00 | 7.50 | 8.50 | 9.50 | 11.75 | 14.25 | 17.00 | 18.75 | 21.25 | 22.75 | 25.00 | |
|
mm
|
120.5 | 139.5 | 152.5 | 190.5 | 216 | 241.5 | 298.5 | 362 | 432 | 476 | 540 | 578 | 635 | ||
|
D
|
in
|
6.00 | 7.00 | 7.50 | 9.00 | 10.00 | 11.00 | 13.50 | 16.00 | 19.00 | 21.00 | 23.50 | 25.00 | 27.50 | |
|
mm
|
152 | 178 | 190 | 229 | 254 | 279 | 343 | 406 | 483 | 533 | 597 | 635 | 699 | ||
|
b
|
in
|
0.75 | 0.88 | 0.94 | 0.94 | 0.94 | 1.00 | 1.13 | 1.19 | 1.25 | 1.38 | 1.44 | 1.56 | 1.69 | |
|
mm
|
16 | 17.5 | 19 | 24 | 25 | 26 | 29 | 31 | 32 | 35 | 37 | 40 | 43 | ||
|
n-Φd
|
in
|
4-0.75 | 4-0.75 | 4-0.75 | 8-0.75 | 80.87 | -0.87 | 8-0.87 | 12-1.00 | 12-1.00 | 12-1.13 | 16-1.13 | 16-1.25 | 20-1.25 | |
|
mm
|
4-19 | 4-19 | 4-19 | 8-19 | 8-22 | 8-22 | 8-22 | 12-25 | 12-25 | 12-29 | 16-29 | 16-32 | 20-32 | ||
|
H
(open) |
in
|
5.31 | 6.10 | 6.61 | 9.37 | 9-80 | 10.91 | 13.35 | 15.67 | 20.67 | 21.77 | 22-99 | 26.30 | 28.03 | |
|
mm
|
135 | 155 | 168 | 235 | 249 | 277 | 339 | 398 | 525 | 553 | 584 | 688 | 712 | ||
|
WT(kg)
|
BF
|
17 | 21 | 29 | 42 | 69 | 74 | 108 | 177 | 282 | 372 | 570 | 665 | 900 | |
|
BW
|
13 | 17 | 24 | 36 | 57 | 62 | 96 | 158 | 238 | 324 | 483 | 48 | 782 |
