美標(biāo)止回閥描述
型號(hào):H41H/W、H44H/W
尺寸:1/2-20"
壓力:150LB-900LB
溫度:-20℃~+570℃
材質(zhì):鑄鐵,碳鋼,不銹鋼,鉻鉬鋼,鉻鑰釩鋼
結(jié)構(gòu):升降式,旋啟式
富林克美標(biāo)止回閥是能自動(dòng)阻止流體倒流的閥門。止回閥的閥瓣在流體壓力作用下開(kāi)啟,流體從進(jìn)口側(cè)流向出口側(cè)。當(dāng)進(jìn)口側(cè)壓力低于出口側(cè)時(shí),閥瓣在流體壓差、本身重力等因素作用下自動(dòng)關(guān)閉以防止流體倒流。
特點(diǎn)
1、升降式止回閥的結(jié)構(gòu)一般與截止閥相似,其閥瓣沿著通道中心線作升降運(yùn)動(dòng),動(dòng)作可靠,但流體阻力較大,適用于較小口徑的場(chǎng)合。升降式止回閥可分為直通式和立式兩種。直通式升降式止回閥一般只能安裝在水平管路,而立式升降止回閥一般應(yīng)安裝在垂直管路。
2、旋啟式止回閥的閥瓣繞轉(zhuǎn)軸作旋轉(zhuǎn)運(yùn)動(dòng)。其流體阻力一般小于升降式止回閥,它適用于較大口徑的場(chǎng)合。旋啟式止回閥根據(jù)閥瓣的數(shù)目可分為單瓣旋啟式、雙瓣旋啟式及多瓣旋啟式三種。單瓣旋啟式止回閥一般適用于中等口徑的場(chǎng)合。大口徑管路選用單瓣旋啟式止回閥時(shí),為減少水錘壓力,采用能減小水錘壓力的緩閉止回閥。雙瓣旋啟式止回閥適用于大中口徑管路。對(duì)夾雙瓣旋啟式止回閥結(jié)構(gòu)小、重量輕,是一種發(fā)展較快的止回閥;多瓣旋啟式止回閥適用于大口徑管道路。
名稱 | 止回閥 |
設(shè)計(jì)標(biāo)準(zhǔn) | APl6D . JlS B2074-2084 |
結(jié)構(gòu)長(zhǎng)度 | ANSIB16.10,JISB2002 |
配管法蘭 | ANSI B16.5 、 JISB2212-2214 |
對(duì)焊端尺寸 | ANSlB16.25 |
檢驗(yàn)與試 | APl6D 或 APl598,JlSB2003 |
壓力等級(jí)或公稱壓力 | 殼體試驗(yàn) (Mpa) | 密封試驗(yàn) (MPa) | |
高壓液密封 | 低壓氣密封 | ||
150Lb . PN2.0MPa | 2.94 | 2.16 | 0.6 |
300Lb . PN5.0 MPa | 7.67 | 5.62 | |
600Lb . PNl10.0MPa | 15.3 | 11.23 | |
JISlOK | 2.1 | 1.6 | |
JIS20K | 5.1 | 3.8 |
零件名稱 | 材 料 | |||||||
閥體 閥蓋 閥瓣 搖桿 | ASTM A216 WCB | ASTM A351 CFB | ASTM A351 CF8M | ASTM A351 CF3 | ASTM A351 CF3M | |||
銷軸 | 1Crl3 | OCrl8Ni9 | OCrl7Nil2M02 | OOCrl9Nil0 | OOCrl7Nil4M02 | |||
F6a | 304 | 316 | 304L | 316L | ||||
閥瓣 | 密封面 | 13Cr | 13Cr | STL | 本體 本體 STL 本體 STLR STL | |||
閥座 | 13Cr | STL | STL | |||||
閥瓣螺母 | 1Crl3 | 0Crl8Ni9 | OCrl7Nil2M02 | 00Crl9NilO | OOCrl7Ni4M02 | |||
410 | 304 | 316 | 304L | 316L | ||||
防松銷 | OCCr8Ni9 | 0Crl7Nil2M02 | 00Crl9NilO | 00Crl7Nil4M02 | ||||
304 | 316 | 304L | 316L | |||||
墊片 | 柔性石墨復(fù)合墊 ( 芯板:碳鋼或不銹鋼 ) 不銹鋼帶,柔性石墨纏繞墊 | |||||||
中法蘭螺栓 | 350CrM0 ASTM A193 B7 | OCr18Ni9 ASTMA193 B8 | ||||||
中法蘭螺母 | 45 ASTM A1 94 2H | OCr18Ni9 ASTM A194 8 | ||||||
適用 工況 | 適用介質(zhì) | 水、蒸汽、油品等 | 硝酸等腐蝕介質(zhì) | 醋酸等腐蝕介質(zhì) | 強(qiáng)氧化性介質(zhì) | 尿素等腐蝕性介質(zhì) | ||
適用溫度 (℃) | -29 ~ 425 | -40 ~ 200( 超出該溫度范圍、請(qǐng)?jiān)谟嗀洉r(shí)注明 ) |
美標(biāo)法蘭止回閥結(jié)構(gòu)圖
美標(biāo)法蘭止回閥尺寸
公稱通徑NPS | 單位 | API 150 Lb 主要外形尺寸和連接尺寸(mm) | 重量 | |||||||
in | mm | L | D | D1 | D2 | b | z-d | H | ||
2" | 50 | in | 9.00 | 6.00 | 4. 75 | 3.62 | 0. 75 | 4-0. 75 | 6.34 | 16.6 |
mm | 203 | 157 | 120. 7 | 92 | 19.5 | 4-19 | 161 | |||
2 1/2" | 65 | in | 8.50 | 7 .00 | 5.50 | 4.12 | 0.88 | 4-0. 75 | 7 .08 | 22.5 |
mm | 216 | 178 | 139. 7 | 105 | 22.5 | 4-19 | 180 | |||
3" | 80 | in | 9.50 | 7 .50 | 6.00 | 5.00 | 0.94 | 4-0.75 | 7 .48 | 32.5 |
mm | 241 | 190.5 | 152.4 | 127 | 24 | 4-19 | 190 | |||
4" | 100 | in | 11.50 | 9.00 | 7 .50 | 6.19 | 0.94 | 8-0. 75 | 8.66 | 53.8 |
mm | 292 | 229 | 190.5 | 157 .2 | 24 | 8-19 | 220 | |||
6" | 150 | in | 14.00 | 11.0 | 9.50 | 8.50 | 1.00 | 4-0.88 | 10.12 | 83.8 |
mm | 356 | 279 | 241.5 | 216 | 25.5 | 8-22.5 | 257 | |||
8" | 200 | in | 19.50 | 13.50 | 11. 75 | 10.62 | 1.12 | 8-0.88 | 11.50 | 141.3 |
mm | 495 | 343 | 298.5 | 270 | 29 | 8-22.5 | 292 | |||
10" | 250 | in | 24.5 | 16.00 | 14.25 | 12. 75 | 1.19 | 12-1.00 | 13. 78 | 190.5 |
mm | 622 | 406 | 362 | 324 | 30.5 | 12-25 | 350 | |||
12" | 300 | in | 27 .50 | 19.00 | 17 .00 | 15.00 | 1.25 | 12-1.00 | 15.60 | 292 |
mm | 699 | 483 | 432 | 381 | 32 | 12-25 | 398 |
公稱通徑NPS | 單位 | 主要外形尺寸和連接尺寸(mm) | 重量(kg) | |||||||
in | mm | L | D | D1 | D2 | b | z-d | H | ||
API 300Lb | ||||||||||
2" | 50 | in | 10.50 | 6.5 | 5.0 | 3.62 | 0.88 | 8-0.75 | 7 .06 | 21 |
mm | 267 | 165 | 127 | 92 | 22.5 | 8-19 | 179.5 | |||
3" | 80 | in | 12.50 | 8.25 | 6.62 | 5.00 | 1.12 | 8-0.88 | 8.36 | 47 |
mm | 318 | 210 | 168 | 127 | 29.0 | 8-22.5 | 212.4 | |||
4" | 100 | in | 14.00 | 10.00 | 7 .88 | 6.19 | 1.25 | 8-0.88 | 9.69 | 69 |
mm | 356 | 254 | 200 | 157 | 32.0 | 8-22.5 | 246 | |||
6" | 150 | in | 17 .50 | 12.50 | 10.62 | 8.50 | 1.44 | 12-0.88 | 11.50 | 133 |
mm | 445 | 317 .5 | 269. 7 | 216 | 37 .0 | 12-22.5 | 292 | |||
8" | 200 | in | 21.00 | 15.00 | 13.00 | 10.62 | 1.62 | 12-1.00 | 12. 91 | 165.5 |
mm | 533 | 381 | 330 | 270 | 41.5 | 12-25.5 | 328 | |||
10" | 250 | in | 24.50 | 17 .50 | 15.25 | 12. 75 | 1.88 | 16-1.12 | 14. 9 | 208 |
mm | 622 | 444.50 | 387 | 324 | 48.0 | 16-28.5 | 378.6 | |||
12" | 300 | in | 28.00 | 20.50 | 17. 75 | 15.00 | 2.00 | 16-1.25 | 16.53 | 296 |
mm | 711 | 521 | 451 | 381 | 51.0 | 16-32 | 420 | |||
API 400Lb | ||||||||||
2" | 50 | in | 11.50 | 6.50 | 5.00 | 3.62 | 1.00 | 8-0.75 | 7 .55 | 26 |
mm | 292 | 165 | 127 | 92 | 25.5 | 8-19 | 192 | |||
3" | 80 | in | 14.00 | 8.25 | 6.62 | 5.00 | 1.25 | 8-0.88 | 8.66 | 53 |
mm | 356 | 210 | 168 | 127 | 32 | 8-22.5 | 220 | |||
4" | 100 | in | 16.00 | 10.00 | 7 .88 | 6.19 | 1.38 | 8-1.00 | 9.64 | 72 |
mm | 406 | 254 | 200 | 157 | 35 | 8-25.5 | 245 | |||
6" | 150 | in | 19.50 | 12.50 | 10.62 | 8.50 | 1.62 | 12-1.00 | 11.61 | 136.5 |
mm | 495 | 317 .5 | 270 | 216 | 41.5 | 12-25.5 | 295 | |||
8" | 200 | in | 23.50 | 15.00 | 13.00 | 10.62 | 1.88 | 12-1.12 | 12.99 | 207.3 |
mm | 597 | 381 | 330 | 270 | 48 | 12-28.5 | 330 | |||
10" | 250 | in | 26.50 | 17 .50 | 15.52 | 12. 75 | 2.12 | 16-1.25 | 14.96 | 300.9 |
mm | 673 | 445 | 387 | 324 | 54 | 16-32 | 380 | |||
12" | 300 | in | 30.00 | 20.50 | 17. 75 | 15.00 | 2.25 | 16-1.38 | 16. 73 | 390 |
mm | 762 | 520 | 450.8 | 381 | 57 .5 | 16-35 | 425 |
API 600Lb | ||||||||||||
公稱通徑NPS | 單位 | 主要外形尺寸和連接尺寸(mm) | 重量(kg) | |||||||||
in | mm | L | D | D1 | D2 | D8 | b | Z-d | H |
| ||
2" | 50 | in | 11.61 | 6.50 | 5.0 | 425 | 3.25 | 0. 98 | 8-0. 75 | 7 .99 | 34 | |
mm | 295 | 165 | 127 .0 | 108 | 82.6 | 25 | 8-19 | 203 | ||||
3" | 80 | in | 14.13 | 8.27 | 6.62 | 5. 75 | 4.87 | 1.26 | 8-0.88 | 9.25 | 63 | |
mm | 359 | 210 | 168.1 | 146 | 123 .8 | 32 | 8-22 | 235 | ||||
4" | 100 | in | 17 .13 | 10. 75 | 8.50 | 6.89 | 5.87 | 1.50 | 8-1.00 | 11.26 | 114 | |
mm | 435 | 273 | 215. 9 | 175 | 149.2 | 38 | 8-25 | 286 | ||||
6" | 150 | in | 22.13 | 14.0 | 11.5 | 9.49 | 8.31 | 1.89 | 12-1.14 | 13.00 | 207 | |
mm | 562 | 356 | 292.1 | 241 | 211.1 | 48 | 12-29 | 330 | ||||
8" | 200 | in | 26.14 | 16.50 | 13. 74 | 11.89 | 10.63 | 2.20 | 12-1.26 | 15.00 | 387 | |
mm | 664 | 419 | 349.1 | 302 | 269.9 | 56 | 12-32 | 381 | ||||
10" | 250 | in | 31.14 | 20.0 | 17 .0 | 14.02 | 12. 75 | 2.25 | 16-1.38 | 18.00 | 580 | |
mm | 791 | 508 | 431.8 | 356 | 323.8 | 64 | 16-35 | 457 | ||||
12" | 300 | in | 33.15 | 22.00 | 19.25 | 16.26 | 15.0 | 2.64 | 20-1.38 | 23.00 | 778 | |
mm | 842 | 559 | 489 | 413 | 381.0 | 67 | 20-35 | 584 |