國標鑄鋼截止閥結構特點及用途
1.全關時手輪按順時針方向旋轉;
.2.可以安裝在管道的任何位置上,介質(zhì)從下往上流;
3.不銹鋼截止閥適用于各類腐蝕性介質(zhì)的管道上,有良好的防腐性和足夠的強度;
4.合金鋼截止閥適用于耐高溫的蒸汽、油品管道上,具有耐高溫特點。
國標鑄鋼截止閥執(zhí)行標準
設計規(guī)范:GB/T 12235
結構長度:GB/T 12221
法蘭連接:JB/T 79
試驗與檢驗:JB/T 9002
產(chǎn)品標識:GB/T 12220
供貨規(guī)范:JB/T 7928
主要零部件材料
產(chǎn)品類型Product classification | 零件名稱Part name | |||||||
閥體、閥蓋Body bonnet | 閥桿Valve stem | 閥瓣Disc | 密封面Sealing face | 閥桿螺母Yoke nut | 填料Packing | 緊固件Fastener | 手輪Handwheel | |
J41(H.Y)-C型 J941(H.Y)-C型 | 25、WCB | 鉻不銹鋼Cr.Stainless steel | 2Cr1325 | H:不銹鋼Y:鈷基硬質(zhì)合金鋼H:Stainless steelY:Co-based carbide alloy steel | 鋁青銅Albronze | 柔性石墨Flexible graphite | 優(yōu)質(zhì)碳鋼High-grade carbon steel | 可鍛鑄鐵Forgeable cast-iron |
J41W-P型J941W-P型 | 鉻鎳鈦鋼Cr.Ni.Ti steel | 鉻鎳鈦鋼Cr.Ni.Ti steel | 鉻鎳鈦鋼Cr.Ni.Ti steel | 鉻鎳鈦鋼Cr.Ni.Ti steel | 鋁青銅Albronze | 柔性石墨Flexible graphite | 不銹鋼Stainless steel | 可鍛鑄鐵Forgeable cast-iron |
J41W-R型 | 鉻鎳鉬鈦鋼Cr.Ni.Mo.Ti steel | 鉻鎳鉬鈦鋼Cr.Ni.Mo.Ti steel | 鉻鎳鉬鈦鋼Cr.Ni.Mo.Ti steel | 鉻鎳鉬鈦鋼Cr.Ni.Mo.Ti steel | 鋁青銅Albronze | 柔性石墨Flexible graphite | 不銹鋼Stainless steel | 可鍛鑄鐵Forgeable cast-iron |
J41Y-I型J941Y-I型 | 鉻鉬鋼 Cr.Mo steel | 鉻鉬鋼Cr.Mo steel | 合金鋼Alloy steel | 鈷基硬質(zhì)合金鋼C0-based carbide alloy steel | 鋁青銅Albronze | 柔性石墨Flexible graphite | 合金鋼Alloy steel | 可鍛鑄鐵Forgeable cast-iron |
試驗壓力
公稱壓力PN(MPa)Nominal pressure | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 |
殼體強度試驗Shell strength test | 2.4 | 3.8 | 6.0 | 9.6 | 15 | 24 |
上密封試驗Back seal test | 1.8 | 2.8 | 4.4 | 7.0 | 11 | 18 |
密封試驗Seal test | 1.8 | 2.8 | 4.4 | 7.0 | 11 | 18 |
使用范圍
產(chǎn)品類型Product classification | 適用介質(zhì)Suitable medium | 適用溫度(℃)Suitable temperature |
J41(H.Y)-C型 J941(H.Y)-C型 | 水、蒸汽、油品Water,steam,oilgoods | ≤425℃ ≤450℃ |
J41W-P型 J941W-P型 | 硝酸類Nitric acid | ≤200℃ |
J41W-R弄 | 醋酸類Acetic acid | ≤200℃ |
J41Y-I型 J941Y-I型 | 水、蒸汽、油品Water,steam,oilgoods | ≤550℃ |
主要連接尺寸
公稱通徑DNNominal diameter | 主要外形尺寸和連接尺寸(mm)Main external and connecting dimensions | 重量(kg)Weight | ||||||||
L | D | D1 | D2 | b | f | z-d | H | D0 | ||
J41(H.Y.B)-16C J41W-16P J41W-16R J41Y-16I | ||||||||||
10 | 130 | 90 | 60 | 40 | 14 | 2 | 4-14 | 198 | 120 | 4.7 |
15 | 130 | 95 | 65 | 45 | 16 | 2 | 4-14 | 218 | 120 | 5.2 |
20 | 150 | 105 | 75 | 55 | 16 | 2 | 4-14 | 258 | 140 | 7.1 |
25 | 160 | 115 | 85 | 65 | 16 | 2 | 4-14 | 275 | 160 | 7.4 |
32 | 180 | 135 | 100 | 78 | 18 | 2 | 4-18 | 280 | 180 | 8.5 |
40 | 200 | 145 | 110 | 85 | 18 | 3 | 4-18 | 330 | 200 | 12.5 |
50 | 230 | 160 | 125 | 100 | 18 | 3 | 4-18 | 350 | 240 | 20 |
65 | 290 | 180 | 145 | 12 | 18 | 3 | 4-18 | 400 | 280 | 25 |
80 | 310 | 195 | 160 | 135 | 20 | 3 | 8-18 | 355 | 280 | 35 |
100 | 350 | 215 | 180 | 155 | 22 | 3 | 8-18 | 415 | 320 | 50 |
125 | 400 | 245 | 210 | 185 | 24 | 3 | 8-18 | 460 | 360 | 75 |
150 | 480 | 280 | 240 | 210 | 24 | 3 | 8-23 | 510 | 400 | 100 |
200 | 600 | 335 | 295 | 265 | 26 | 3 | 12-23 | 710 | 400 | 210 |
250 | 650 | 405 | 355 | 320 | 30 | 3 | 12-23 | 786 | 450 | 446 |
300 | 750 | 460 | 410 | 375 | 30 | 3 | 12-23 | 925 | 500 | 648 |
安裝注意事項
1. 手輪、手柄操作的截止閥可安裝在管道的任何位置上。
2. 手輪、手柄及微動機構,不允許作起吊用。
3. 介質(zhì)的流向應與閥體所示箭頭方向*。