J41H截止閥|法蘭高壓截止閥:
截止閥的啟閉件是塞形的閥瓣,密封面呈平面或錐面,閥瓣沿流體的中心線作直線運(yùn)動(dòng)。閥桿的運(yùn)動(dòng)形式,有升降桿式(閥桿升降,手輪不升降),也有升降旋轉(zhuǎn)桿式(手輪與閥桿一起旋轉(zhuǎn)升降,上海科襖實(shí)業(yè)有限公司螺母設(shè)在閥體上)。截止閥只適用于全開和全關(guān),不允許作調(diào)節(jié)和節(jié)流。
執(zhí)行標(biāo)準(zhǔn) Administer Standard
設(shè)計(jì)與制造 Design and Manufacture |
結(jié)構(gòu)長(zhǎng)度 |
法蘭尺寸 |
壓力-溫度 Pressure Temperature Lating |
試驗(yàn)-檢驗(yàn) Inspection And Test |
GB122235 |
GB12221 |
GB9113 JB79 |
GB9131 |
GB/T13927 JB/T9092 |
壓力試驗(yàn) Pressure Test
公稱壓力NominalPressure |
1.6 |
2.5 |
4.0 |
6.4 |
10.0 |
16.0 |
強(qiáng)度試驗(yàn) Shell Test |
2.4 |
3.8 |
6.0 |
9.6 |
15.0 |
24.0 |
水密封試驗(yàn) Water Seal Test |
1.8 |
2.8 |
4.4 |
7.0 |
11.0 |
18.0 |
上密封試驗(yàn)Backseat Test |
1.8 |
2.8 |
4.4 |
7.0 |
11.0 |
18.0 |
氣密封試驗(yàn) Air Seal Test |
0.5-0.7 |
主要零件材料及性能 Main Part Materials and Property
體、蓋、板 Body Cover Disc |
閥桿 |
密封面 Sealing Face |
墊片 |
填料 |
工作溫度℃ Working Temperature |
適用介質(zhì)Suitable Medium |
|
WCB |
2Cr13 |
13Cr STL 木體材料 With Body Material 尼龍 Nylon |
增強(qiáng)柔性石墨 Enhanced Flexible Graphite 13Cr/柔性石墨 1Cr13/Flexible Graphite 08軟鋼 08 Soft Steal 0Cr18Ni9Ti 0Cr17Ni12Mo2Ti XD550F(T) PTFE |
柔性石墨 增強(qiáng)柔性石墨 Flexible Graphite Enhanced Flexible Graphite SFB/260 SFP/260 PTFE
|
≤425 |
水 蒸汽 油品 Water Steam Petroleum Ptoducts |
|
WC1 |
38CrMoAl 25Cr2MoV |
≤450 |
|||||
WC6 |
≤540 |
||||||
WC9 |
≤570 |
||||||
C5 C12 |
≤540 |
||||||
ZGCr5Mo |
≤200 |
硝酸類Nitric acid |
|||||
ZG1Cr18Ni9Ti |
1Cr18Ni9Ti |
||||||
≤200 |
醋酸類Acetic acid |
||||||
ZG1Cr18Ni12Mo2Ti |
1Cr18Ni12Mo2Ti |