截止阀阀门尺寸#特选借鉴

1、详细介绍：国家标准法兰截止阀的开闭是圆柱形襟翼，密封面是平面或圆锥形，襟翼沿流体中心线直线运动。国家标准截止阀仅适用于全开和全关，一般不控制流量，在定制时允许调整和节流。在标称压力1.6MPa-16.0MPa、作业温度-29 550 的石油、化学、制药、肥料、电气工业等各种条件下切断或打开管路介质。驱动方式包括手动、齿轮传动、电气、气动等。国家标准法兰截止阀产品功能1、结构简单，制造和维护更加方便2、小作业日程，短开闭时间3、密封性好，密封面之间的摩擦力小，寿命长国家标准法兰截止阀执行标准设计规范：GB/T 12235结构长度：GB/T 12221凸缘连接：JB/T 79测试和测试：JB/T

2、9002产品标志：GB/T 12220供应规格：JB/T 7928国家标准法兰截止阀性能参数型号J41H-16C至160c至160CJ41Y-16C至160c至160CJ41W-16P至160p至160P工作压力(MPa)1.6-16.0适用温度(c)425150适用的介质水、蒸汽、油弱腐蚀性介质材料阀体，阀盖碳钢铬-镍-钛不锈钢系统铬不锈钢铬-镍-钛不锈钢密封面铁基合金表面处理硬质基合金表面处理本体材料包装石棉石墨、柔性石墨、聚四氟乙烯国家标准法兰截止阀压力测试MPa公称压力1.62.54.06.410.016.0强度测试2.43.86.09.615.024.0水密封试验1.82.84.47

3、.411.018.0上密封试验1.82.84.47.0411.018.0气体密封试验0.4-0.7国家标准法兰截止阀主要部件材料和特性体盖拉系统密封面垫片(环)包装工作温度c适用的介质WCB2Cr1313CrSTL本体材料尼龙增强延性石墨1 CRL 3/柔性石墨08低碳钢0Cr18Ni9TiOCr18Ni12Mo2Ti柔性石墨增强延性石墨SFB-260SFP-260425水、蒸汽、油WC138CrMoAI25Cr2MoV450WC6540WC9570ZGCr5Mo540ZG1Cr18Ni9Ti1Cr18Ni9Ti200硝酸类ZGCr18Ni12Mo2Ti1C18Ni12Mo2Ti200乙酸PN

4、 l.6MPa规格主要尺寸1.6MPaDNldD1D2bN- dhD0凸凸缘RFJ41HJ41YJ41WJ41FJ41N16C16P16R16I10130906040144- 1419812015130956545144- 14218120201501057555144- 14258140251601158565144- 142751403218013510078164- 182801604020014511085164- 1833018050230160125100164- 1835020065290180145120184- 1837028080310195160135208- 18400

5、280100350215180155208- 18415320125400245210185228- 18460360150480280240210248- 235104502006003352952652612- 237105002506504053353203012- 257865503007504604103753012- 259256002.5MPa规格主要尺寸2.5MPaDNldD1D2bN- dhD010130906040164- 1419812015130956545164- 14218120201501057555164- 14258140251601158565164- 14

6、2751403218013510078184- 182801604020014511085184- 1833018050230160125100204- 1835020065290180145125228- 1840028080310195160135228- 18355280100350230190160248- 23415320125400270220188288- 25460360150480300250218308- 255104502006003603102783412- 257105002506224253703323612- 307865503006984854303904016

7、- 309256004.0MPa规格主要尺寸4.0MPaDNldD1D2D6bN- dhD0凹凸凸缘MFMJ41HJ41YJ41WJ41N4040P40R40I1013090604135144- 141981201513095654540164- 1423312020150105755551164- 1429514025160115856558164- 14285160321801351007866184- 18302160402001451108576184- 183552005023016012510088204- 1837320065290180145120110228- 1840828

8、080310195160135121228- 18436280100350230190160150248- 234803201254001270220188176288- 25588360150480300250218204308- 256114002006003753202822603812- 307204006.4MPa规格主要尺寸6.4MPa15170105755540184-14 195400凹凸凸缘MFMJ41HJ41YJ41WJ41N6464P64R64I20190125906851204- 18228160252101351007858224- 18275180322301501108266244- 23325200402601651259576244- 233602405030017513510588264- 2341028065340200160130110288- 2345032080380210170140121308- 234853