升降式止回閥產(chǎn)品概述
H41H、H41Y 型 PN16~PN100 升降式止回閥是生產(chǎn)過程調(diào)節(jié)系統(tǒng)中的重要環(huán)節(jié)之一,是控制管道內(nèi)介質(zhì)單向流向的閥門,阻止介質(zhì)倒流。升降式止回閥產(chǎn)品特點(diǎn)
1、升降式止回閥是一種閥瓣沿著閥體垂直中心線滑動(dòng)的止回閥,升降式止回閥只能安裝在水平管道上,高壓小口徑的止回閥閥瓣可采用圓球形,升降式止回閥的閥體形狀與截止閥一樣(可與截止閥通用),因此它的流體阻力系數(shù)較大,但密封性較旋啟式好2、升降式鋼制止回閥具有結(jié)構(gòu)簡單,動(dòng)作可靠,維修方便等優(yōu)點(diǎn),廣泛應(yīng)用于凈化設(shè)備、石油、化工、冶金、電力、輕紡等生產(chǎn)過程中
3、當(dāng)介質(zhì)由閥體箭頭所示流向進(jìn)入閥體,介質(zhì)的壓力作用在閥瓣上產(chǎn)生向上的推力,當(dāng)介質(zhì)推力大于閥瓣重力時(shí),閥門打開,當(dāng)閥后介質(zhì)壓力作用在閥瓣上的力加上閥瓣自身重力大于閥前壓力作用在閥瓣上的力時(shí),閥門關(guān)閉,阻止介質(zhì)倒流
升降式止回閥產(chǎn)品執(zhí)行標(biāo)準(zhǔn)
產(chǎn)品規(guī)范 Product specification | 設(shè)計(jì)與制造 Design manufacture | 結(jié)構(gòu)長度 Structure length | 壓力-溫度 Pressure temperature | 法蘭尺寸 Flange size | 檢驗(yàn)與實(shí)驗(yàn) Inspection experiment |
GB/T 12235 | GB/T 12221 | GB/T 9131 | JB/T 79 GB/T 9113 HG 20592 | GB/T 13927 JB/T 9094 |
升降式止回閥零件材料及性能
序號(hào) NO. | 零件名稱 Parts name | 材料 Material | ||||
WCB | WC6 | WC9 | CF8 | CF8M | ||
1 | 閥體 Body | WCB | WC6 | WC9 | CF8 | CF8M |
2 | 閥瓣 Disc | WCB+13Cr | WC6+STL | WC9+STL | CF8 | CF8M |
3 | 閥蓋螺柱 Bonnet Stud | 35CrMo | 35CrMo | 35CrMo | 1Cr18Ni9 | 1Cr18Ni9 |
4 | 閥蓋螺母 Bonnet nut | 35CrMo | 35CrMo | 35CrMo | 1Cr18Ni9 | 1Cr18Ni9 |
5 | 墊片 Gasket | 柔性石墨 Flexible graphite | ||||
6 | 閥蓋 Bonnet | WCB | WC6 | WC9 | CF8 | CF8M |
升降式止回閥外形和連接尺寸
壓力級(jí) MPa | 公稱通徑 DN | 尺寸 Dimension | ||||||
L | D | D1 | D2 | b | f | Z-d | ||
H41H H41W H41Y 1.6MPa | 15 | 130 | 95 | 65 | 45 | 14 | 2 | 4-14 |
20 | 150 | 105 | 75 | 55 | 16 | 2 | 4-14 | |
25 | 160 | 115 | 85 | 65 | 16 | 2 | 4-14 | |
32 | 180 | 135 | 100 | 78 | 18 | 2 | 4-18 | |
40 | 200 | 145 | 110 | 85 | 18 | 2 | 4-18 | |
50 | 230 | 160 | 125 | 100 | 20 | 3 | 4-18 | |
65 | 290 | 180 | 145 | 120 | 20 | 3 | 4-18 | |
80 | 310 | 195 | 160 | 135 | 20 | 3 | 8-18 | |
100 | 350 | 215 | 180 | 155 | 22 | 3 | 8-18 | |
125 | 400 | 245 | 210 | 185 | 22 | 3 | 8-18 | |
150 | 480 | 280 | 240 | 210 | 24 | 3 | 8-23 | |
200 | 600 | 335 | 295 | 265 | 26 | 3 | 12-23 | |
250 | 730 | 405 | 355 | 320 | 28 | 3 | 12-25 | |
300 | 850 | 460 | 410 | 375 | 30 | 4 | 12-25 | |
H41H H41W H41Y 2.5MPa | 15 | 130 | 95 | 65 | 45 | 14 | 2 | 4-14 |
20 | 150 | 105 | 75 | 55 | 16 | 2 | 4-14 | |
25 | 160 | 115 | 85 | 65 | 16 | 2 | 4-14 | |
32 | 180 | 135 | 100 | 78 | 18 | 2 | 4-18 | |
40 | 200 | 145 | 110 | 85 | 18 | 2 | 4-18 | |
50 | 230 | 160 | 125 | 100 | 22 | 3 | 4-18 | |
65 | 290 | 180 | 145 | 120 | 22 | 3 | 8-18 | |
80 | 310 | 195 | 160 | 135 | 24 | 3 | 8-18 | |
100 | 350 | 230 | 190 | 160 | 26 | 3 | 8-23 | |
125 | 400 | 270 | 220 | 188 | 26 | 3 | 8-25 | |
150 | 480 | 300 | 250 | 218 | 28 | 3 | 8-25 | |
200 | 600 | 360 | 310 | 278 | 30 | 3 | 12-25 | |
250 | 730 | 425 | 370 | 332 | 32 | 3 | 12-30 | |
300 | 850 | 485 | 430 | 390 | 34 | 4 | 16-30 | |
H41H H41W H41Y 4.0MPa | 15 | 130 | 95 | 65 | 45 | 14 | 2 | 4-14 |
20 | 150 | 105 | 75 | 55 | 16 | 2 | 4-14 | |
25 | 160 | 115 | 85 | 65 | 16 | 2 | 4-14 | |
32 | 180 | 135 | 100 | 78 | 18 | 2 | 4-18 | |
40 | 200 | 145 | 110 | 85 | 18 | 2 | 4-18 | |
50 | 230 | 160 | 125 | 100 | 20 | 3 | 4-18 | |
65 | 290 | 180 | 145 | 120 | 22 | 3 | 8-18 | |
80 | 310 | 195 | 160 | 135 | 24 | 3 | 8-18 | |
100 | 350 | 230 | 190 | 160 | 24 | 3 | 8-23 | |
125 | 400 | 270 | 220 | 188 | 26 | 3 | 8-25 | |
150 | 480 | 300 | 250 | 218 | 28 | 3 | 8-25 | |
200 | 600 | 375 | 320 | 282 | 34 | 3 | 12-30 | |
250 | 730 | 445 | 385 | 345 | 38 | 3 | 12-34 | |
300 | 850 | 510 | 450 | 408 | 42 | 4 | 16-34 | |
H41H H41W H41Y 6.4MPa | 15 | 210 | 105 | 75 | 55 | 18 | 2 | 4-14 |
20 | 230 | 125 | 90 | 68 | 20 | 2 | 4-14 | |
25 | 230 | 135 | 100 | 78 | 22 | 2 | 4-18 | |
32 | 260 | 150 | 110 | 82 | 24 | 2 | 4-18 | |
40 | 260 | 165 | 125 | 95 | 24 | 2 | 4-23 | |
50 | 300 | 175 | 135 | 105 | 26 | 3 | 4-23 | |
65 | 340 | 200 | 160 | 130 | 26 | 3 | 8-23 | |
80 | 380 | 210 | 170 | 140 | 28 | 3 | 8-23 | |
100 | 430 | 250 | 200 | 168 | 30 | 3 | 8-25 | |
125 | 500 | 295 | 240 | 202 | 34 | 3 | 8-30 | |
150 | 550 | 340 | 280 | 240 | 36 | 3 | 8-34 | |
200 | 650 | 405 | 345 | 300 | 42 | 3 | 12-34 |