【主要用途】
法蘭連接的截止閥適用于公稱壓力PN1.6~16MPa,工作溫度-29~550℃的石油、化工、制藥、化肥、電力行業(yè)等各種工況的管路上,切斷或接通管路介質(zhì)。驅(qū)動方式有手動、齒輪傳動、電動、氣動等。
標準 STD
設(shè)計與制造 Design and Manufacture | 結(jié)構(gòu)長度 Face to face/End to end | 法蘭尺寸 Flange Dimension | 對焊連接尺寸Butt welding dimension | 壓力-溫度 Pressure Temperature Lating | 試驗-檢驗Inspection and Test |
ANSI B16.34 BS1873 | ANSI B16.10 | ANSI B16.5 | ANSI B16.25 | ANSI B16.34 | API 598 |
壓力試驗 Pressure Test
公稱壓力PN(Lb) NominalPressure | 強度試驗 Shell Test | 水密封試驗 Water Seal Test | 氣密封試驗 Air Seal Test | |||
MPa | Lbf/in2 | MPa | Lbf/in2 | MPa | Lbf/in2 | |
150 | 3.0 | 430 | 2.2 | 315 | 0.4-0.7 | 60-100 |
300 | 7.7 | 1110 | 5.7 | 815 | ||
600 | 15.3 | 2220 | 11.3 | 1630 | ||
900 | 23.0 | 3330 | 17.0 | 2445 | ||
1500 | 38.4 | 5560 | 28.2 | 4080 | ||
2500 | 64.0 | 9255 | 47.0 | 6790 |
主要零件材料及性能 Main Part Materials and Property
體、蓋 Body Cover Disc | 閥桿 Stem | 密封面 Sealing Face | 墊片(環(huán)) Sealing Shim | 填料 Packing | 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 | 增強柔性石墨 13Cr/柔性石墨 Enhanced Flexible Graphite 1Cr13/Flexible Graphite SFB-2 08軟鋼 08 Soft Steal F304 F316 F304L F316L | 柔性石墨 增強柔性石墨 Flexible Graphite Enhanced Flexible Graphite SFB/260 SFP/260 PTFE | ≤425 | 水 蒸汽 油品 Water Steam Petroleum Products |
WC1 | 38CrMoAl 25Cr2MoV | ≤425 | ||||
WC6 | ≤540 | |||||
WC9 | ≤570 | |||||
C5 C12 | ≤540 | |||||
CF8 | F304 | ≤200 | 硝酸 醋酸 尿素 Nitric acid Acetic acid | |||
CF8M | F316 | |||||
CF3 | F304L | |||||
CF3M | F316L |