H41國標(biāo)升降式止回閥產(chǎn)品概述
止回閥又稱為逆流閥、逆止閥、背壓閥、單向閥。這類閥門是靠管路中介質(zhì)本身的流動產(chǎn)生的力而自動開啟和關(guān)閉的,屬于一種自動閥門。止回閥用于管路系統(tǒng),其主要作用是防止介質(zhì)倒流、防止泵及其驅(qū)動電機反轉(zhuǎn),以及容器內(nèi)介質(zhì)的泄放。止回閥還可用于給其中的壓力可能升至超過主系統(tǒng)壓力的輔助系統(tǒng)提供補給的管路上。
H41升降式止回閥執(zhí)行標(biāo)準(zhǔn)
類 型 | 設(shè)計與制造 | 結(jié)構(gòu)長度 | 法蘭尺寸 | 壓力溫度 | 試驗-檢驗 |
旋啟式止回閥 | GB12236 | GB12221 | GB9113 JB79 | GB9131 | GB/T13927 JB/9092 |
升降式止回閥 | GB12235 |
壓力試驗
公稱壓力 | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 |
強度試驗 | 2.4 | 3.8 | 6.0 | 9.6 | 15.0 | 24.0 |
水密封試驗 | 1.8 | 2.8 | 4.4 | 7.0 | 11.0 | 18.0 |
氣密封試驗 | 0.5-0.7 |
主要零件材料及性能
體、蓋、板 | 閥 桿 | 密封面 | 墊 片 | 密封面 | 工作溫度℃ | 適用介質(zhì) |
WCB | WCB | 1Cr13 | 增強柔性石墨 1Cr13/ 柔性石墨 PTFE 齒輪墊片 | 13Cr STL 本體材料 尼龍 | ≤425 | 水蒸汽油品 |
WC6 | WC6 | ≤540 | ||||
WC9 | WC9 | ≤570 | ||||
ZGCr5Mo | ZGCr5Mo | ≤550 | ||||
ZG1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ≤200 | 硝酸類 | ||
ZG1Cr18Ni12Mo9Ti | ZG1Cr18Ni12Mo9Ti | ZG1Cr18Ni12Mo9Ti | ≤200 | 醋酸類 |
H41升降式止回閥主要尺寸和重量
1.6MPa | DN | L | D | D1 | D2 | b | n-Φd | H | W(kg) |
凸面法蘭 RF H41H H41Y H41W H41N
16C | 15 | 130 | 95 | 65 | 45 | 14 | 4-14 | 58 | 2.0 |
20 | 150 | 105 | 75 | 55 | 14 | 4-14 | 63 | 2.7 | |
25 | 160 | 115 | 85 | 65 | 14 | 4-14 | 71 | 3.5 | |
32 | 180 | 135 | 100 | 78 | 16 | 4-18 | 84 | 5.4 | |
40 | 200 | 145 | 110 | 85 | 16 | 4-18 | 96 | 6.5 | |
50 | 230 | 160 | 125 | 100 | 16 | 4-18 | 115 | 9.1 | |
65 | 290 | 180 | 145 | 120 | 18 | 4-18 | 145 | 14 | |
80 | 310 | 195 | 160 | 135 | 20 | 8-18 | 156 | 25 | |
100 | 350 | 215 | 180 | 155 | 20 | 8-18 | 170 | 40 | |
125 | 400 | 245 | 210 | 185 | 22 | 8-18 | 201 | 56 | |
150 | 480 | 280 | 240 | 210 | 24 | 8-23 | 238 | 90 | |
2.5MPa | 15 | 130 | 95 | 65 | 45 | 16 | 4-14 | 60 | 4 |
凸面法蘭 RF H41H H41Y H41W H41N
25 | 20 | 150 | 105 | 75 | 55 | 16 | 4-14 | 64 | 5 |
25 | 160 | 115 | 85 | 65 | 16 | 4-14 | 68 | 6 | |
32 | 180 | 135 | 100 | 78 | 18 | 4-18 | 79 | 9 | |
40 | 200 | 145 | 110 | 85 | 18 | 4-18 | 98 | 12 | |
50 | 230 | 160 | 125 | 100 | 20 | 4-18 | 110 | 16 | |
65 | 290 | 180 | 145 | 120 | 22 | 8-18 | 160 | 24 | |
80 | 310 | 195 | 160 | 135 | 22 | 8-18 | 170 | 31 | |
100 | 350 | 230 | 190 | 160 | 24 | 8-23 | 195 | 45 | |
125 | 400 | 270 | 220 | 188 | 28 | 8-25 | 225 | 68 | |
150 | 480 | 300 | 250 | 210 | 30 | 8-25 | 255 | 100 |
H41升降式止回閥 PN 4.0MPa~10.0MPa
主要尺寸和重量
4.0MPa | DN | L | D | D1 | D2 | b | n-d | H | 重量 |
凹凸法蘭 MFM H41H H41Y H41W H41N
40 | 15 | 130 | 95 | 65 | 40 | 16 | 4-14 | 100 | 4 |
20 | 150 | 105 | 75 | 51 | 16 | 4-14 | 105 | 5 | |
25 | 160 | 115 | 85 | 58 | 16 | 4-14 | 120 | 6 | |
32 | 180 | 135 | 100 | 66 | 18 | 4-18 | 130 | 9 | |
40 | 200 | 145 | 110 | 76 | 18 | 4-18 | 135 | 12 | |
50 | 230 | 160 | 125 | 88 | 20 | 4-18 | 149 | 15 | |
65 | 290 | 180 | 145 | 110 | 22 | 8-18 | 164 | 18 | |
80 | 310 | 195 | 160 | 121 | 22 | 8-18 | 169 | 25 | |
100 | 350 | 230 | 190 | 150 | 24 | 8-23 | 194 | 35 | |
125 | 400 | 270 | 220 | 176 | 28 | 8-25 | 225 | 65 | |
150 | 480 | 300 | 250 | 204 | 30 | 8-25 | 255 | 100 | |
6.4MPa | 15 | 210 | 105 | 75 | 40 | 18 | 4-14 | 100 | 7 |
凹凸法蘭 MFM H41H H41Y H41W H41N
64 | 20 | 230 | 125 | 90 | 51 | 20 | 4-18 | 110 | 11 |
25 | 230 | 135 | 100 | 58 | 22 | 4-18 | 125 | 13 | |
32 | 260 | 150 | 110 | 66 | 24 | 4-23 | 152 | 14 | |
40 | 260 | 165 | 125 | 76 | 24 | 4-23 | 168 | 20 | |
50 | 300 | 175 | 135 | 88 | 26 | 4-23 | 170 | 23 | |
65 | 340 | 200 | 160 | 110 | 28 | 8-23 | 188 | 37 | |
80 | 380 | 210 | 170 | 121 | 30 | 8-23 | 205 | 46 | |
100 | 430 | 250 | 200 | 150 | 32 | 8-25 | 230 | 68 | |
125 | 500 | 295 | 240 | 176 | 36 | 8-30 | 245 | 93 | |
150 | 550 | 340 | 280 | 204 | 38 | 8-34 | 265 | 120 | |
10.0MPa | 15 | 210 | 105 | 75 | 40 | 20 | 4-14 | 100 | 7 |
凹凸法蘭 MFM H41H H41Y H41W H41N
100 | 20 | 230 | 125 | 90 | 51 | 22 | 4-18 | 110 | 11 |
25 | 230 | 135 | 100 | 58 | 24 | 4-18 | 125 | 13 | |
32 | 260 | 150 | 110 | 66 | 24 | 4-23 | 140 | 14 | |
40 | 260 | 165 | 125 | 76 | 26 | 4-23 | 168 | 25 | |
50 | 300 | 195 | 145 | 88 | 28 | 4-25 | 170 | 28 | |
65 | 340 | 200 | 170 | 110 | 32 | 8-25 | 188 | 42 | |
80 | 380 | 230 | 180 | 121 | 34 | 8-25 | 205 | 65 | |
100 | 430 | 265 | 210 | 150 | 38 | 8-30 | 230 | 95 | |
125 | 500 | 310 | 250 | 176 | 42 | 8-34 | 245 | 115 | |
150 | 550 | 350 | 290 | 204 | 46 | 12-34 | 265 | 142 | |
160 160P 160R 160I | 32 | 260 | 165 | 115 | 85 | 30 | 4-25 | 170 | |
40 | 260 | 175 | 125 | 92 | 32 | 4-27 | 190 | ||
50 | 300 | 215 | 165 | 132 | 36 | 8-25 | 300 | ||
65 | 340 | 245 | 190 | 152 | 44 | 8-30 | 300 | ||
80 | 380 | 260 | 205 | 168 | 46 | 8-30 | 370 | ||
100 | 430 | 300 | 240 | 200 | 48 | 8-34 | 410 |