上海冠環(huán)閥門制造有限公司生產(chǎn)的焊接真空截止閥,NKJ61焊接真空截止閥主體采用鑄鍛結(jié)構(gòu),具有平行雙密封副半強(qiáng)制雙向密封,密封面到位運(yùn)動(dòng)和楔形塊楔緊運(yùn)動(dòng)分步作用,實(shí)現(xiàn)零泄漏,適用于工作溫度≤425℃和≤550℃,工作介質(zhì)為水、空氣、蒸汽的管路上,作為起閉裝置。尤其適用于火電廠汽機(jī)冷凝和真空負(fù)壓系統(tǒng),起到真空密封隔離作用。
NKJ61焊接真空截止閥技術(shù)參數(shù):
產(chǎn)品類型 | 殼體強(qiáng)度試驗(yàn)/MPa | 上密封試驗(yàn)/MPa | 密封試驗(yàn)/MPa | 適用介質(zhì) | 適用溫度/℃ |
NKJ61H-40 | 6.0 | 4.4 | 4.4 | 水、蒸汽、空氣 | ≤425 |
NKJ61H-64 | 96 | 7.0 | 7.0 | ||
NKJ61H-100 | 15.0 | 11.0 | 11.0 | ||
NKJ61Y-40l | 6.0 | 4.4 | 4.4 | 水、蒸汽、空氣 | ≤550 |
NKJ61Y-64l | 9.6 | 7.0 | 7.0 | ||
NKJ61Y-100I | 15.0 | 11.0 | 11.0 |
主要零件材質(zhì):
零件名稱 | 閥體、閥蓋 | 閥桿 | 閥瓣 | 密封面 | 閥桿螺母 | 填料 | 緊固件 |
NKJ61H-C型 | 25或WCB | 鉻不銹鋼 | 鉻不銹鋼 | H:合金鋼 | 鋁青銅 | 膨脹復(fù)合石墨 | 優(yōu)質(zhì)碳鋼 |
NKJ61Y-l型 | 鉻鉬鋼 | 20CrlM01vA或38CrM0AlA | 12CrlM0 1VA | Y:硬質(zhì)合金 | 鉻鉬鋼 |
外形及連接尺寸:
公稱通徑 | 公稱壓力 | 主要外形尺寸和連接尺寸/mm | |||||||
L | H | D | D0 | D1 | L1 | α | W | ||
10 | 4.0 | 130 | 245 | 36 | 11 | 18.4 | 10 | - | 120 |
15 | 130 | 245 | 36 | 16 | 22.5 | 10 | - | 120 | |
20 | 150 | 265 | 44 | 21 | 28.5 | 11 | - | 160 | |
25 | 160 | 270 | 48 | 26 | 34.5 | 12 | - | 200 | |
32 | 180 | 285 | 48 | 34 | - | - | 37030’ | 200 | |
40 | 200 | 320 | 55 | 40 | - | - | 37030’ | 240 | |
50 | 230 | 365 | 64 | 48 | - | - | 37030’ | 320 | |
65 | 290 | 410 | 82 | 66 | - | - | 37030’ | 300 | |
80 | 310 | 430 | 95 | 78 | - | - | 37030’ | 300 | |
100 | 350 | 470 | 117 | 100 | - | - | 37030’ | 350 | |
125 | 400 | 500 | 143 | 126 | - | - | 37030’ | 350 | |
150 | 480 | 533 | 167 | 150 | - | - | 37030’ | 400 | |
10 | 6.4 | 130 | 245 | 36 | 10 | 18.4 | 10 | - | 120 |
15 | 130 | 245 | 36 | 15 | 22.5 | 10 | - | 120 | |
20 | 150 | 265 | 44 | 20 | 28.5 | 11 | - | 160 | |
25 | 160 | 270 | 48 | 25 | 34.5 | 12 | - | 200 | |
32 | 180 | 280 | 48 | 33 | - | - | 37030’ | 200 | |
40 | 200 | 320 | 55 | 39 | - | - | 37030’ | 240 | |
50 | 230 | 365 | 64 | 48 | - | - | 37030’ | 320 | |
65 | 290 | 410 | 82 | 65 | - | - | 37030’ | 320 | |
80 | 310 | 430 | 95 | 76 | - | - | 37030’ | 360 | |
100 | 350 | 470 | 117 | 98 | - | - | 37030’ | 400 | |
125 | 480 | 500 | 143 | 123 | - | - | 37030’ | 400 | |
150 | 480 | 533 | 167 | 148 | - | - | 37030’ | 500 | |
10 | 10.0 | 130 | 245 | 36 | 10 | 18.4 | 10 | - | 120 |
15 | 130 | 245 | 36 | 14 | 22.5 | 10 | - | 120 | |
20 | 150 | 265 | 44 | 20 | 28.5 | 11 | - | 160 | |
25 | 160 | 270 | 48 | 25 | 34.5 | 12 | - | 200 | |
32 | 180 | 285 | 48 | 32 | - | - | 37030’ | 200 | |
40 | 200 | 320 | 55 | 38 | - | - | 37030’ | 240 | |
50 | 230 | 355 | 64 | 48 | - | - | 37030’ | 320 | |
65 | 290 | 410 | 82 | 63 | - | - | 37030’ | 320 | |
80 | 310 | 430 | 95 | 74 | - | - | 37030’ | 360 | |
100 | 350 | 470 | 117 | 97 | - | - | 37030’ | 400 | |
125 | 400 | 500 | 143 | 123 | - | - | 37030’ | 400 | |
150 | 480 | 533 | 167 | 148 | - | - | 37030’ | 500 |
上海冠環(huán)閥門制造有限公司http://www.ghval。。com/product/dzfm/352.html