国标法兰铸钢球阀概述

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1、国标法兰铸钢球阀概述：国标法兰铸钢球阀用于截断或接通管路中的介质，选用不同的材质，可分别适用于水、蒸汽、油品、液化气、天然气、煤气、硝酸、醋酸、氧化性介质、尿素等多种介质。标准设计与制造按GB/T12237结构长度按GB/T12221法兰连接尺寸按JB/T79检验按JB/T9092试验项目壳体试验密封试验上密封试验气密封试验介质水气单位MPaMPaMPaMPa公称压力PN(MPa)1.62.418180.5-0.72.53.82.82.84.06.04.44.46.49.67.07.010.015.011.011.0

2、16.024.018.018.0主要零件材料名称材料阀体/阀盖CF8CF3CF8MCF3MWCBLCBWC6WC9C5球体CF8CF3CF8MCF3MWCBHCrCF8CF8CF8CF8阀杆F304F304LF316F316L2C13F304F304F304F304阀座PTFE/PPL填料/垫片PTFE/PPL石墨螺栓不锈钢35CrMoA螺母不锈钢45、35CrMoA手柄铸钢主要连接尺寸型号公称通径DN(mm)尺寸(mm)LDD1D2b-fz-ΦdHWQ41C-16Q341C-16Q641C-161513095654

3、514-24-Φ146511520140105755514-24-Φ147513025150115856514-24-Φ1485150321651351007816-24-Φ1895190401801451108516-34-Φ181052305020016012510016-34-Φ181152406522018014512018-34-Φ181452808025019516013520-38-Φ1816031010028021518015520-38-Φ1818533012532024521018522-38-Φ

4、1821560015036028024021024-38-中2324580020040033529526526-312-Φ23300100025045040535532030-312-Φ253801200主要连接尺寸型号公称通径DN(mm)尺寸(mm)LDD1D2b-fz-ΦdHWQ41C-25Q341-25Q641C-251513095654514-24-Φ146511520140105755514-24-Φ147513025150115856514-24-Φ1485150321651351007816-24-Φ1

5、895190401801451108518-34-Φ181052305020016012510020-34-Φ181152406522018014512022-38-Φ181452808025019516013522-38-Φ1816031010028023019016024-38-Φ2318533012532027022018828-38-Φ2521560015036030025021830-38-Φ2524580020040036031027834-312-Φ25300100025045042537033236-

6、312-Φ303801200主要连接尺寸型号公称通径DN(mm)尺寸(mm)LDD1D2D6b-fz-ΦdHWQ41C-40Q341C-40Q641C-40151309565454016-24-Φ14701152014010575555116-24-Φ14801302515011585655816-24-Φ149015032180135100786618-34-Φ1810019040200145110857618-34-Φ18110230502201601251008820-34-Φ18120240652501801

7、4512011022-38-Φ181502808028019516013512122-38-Φ1817031010032023019016015024-38-Φ2319033012536027022018817628-38-Φ2522060015040030025021820430-38-Φ2525080020055037532028226038-312-Φ303901200主要连接尺寸型号Type公称通径DN(mm)尺寸(mm)LDD1D2D6b-fz-ΦdHWQ41C-64Q341-64Q641C-6415140

8、10575554018-24-Φ14751152016012590685120-24-Φ188513025180135100785822-24-Φ189515032200150110826624-24-Φ2310519040220165125957624-34-Φ23120230502501751351058826-34-Φ2313024065