截止阀阀门尺寸

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1、详细介绍：国标法兰截止阀的启闭件是圆柱形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。国标截止阀只适用于全开和全关，一般不用来调节流量，定做时允许作调节和节流。公称压力1.6MPa-16.0MPa，工作温度-29～550℃的石油、化工、制药、化肥、电力行业等各种工况的管路上，切断或接通管路介质。驱动方式有手动、齿轮传动、电动、气动等。国标法兰截止阀产品特点1、结构简单，制造和维修比较方便2、工作行程小，启闭时间短3、密封性好，密封面间磨擦力小，寿命较长国标法兰截止阀执行标准设计规范：GB/T12235结构长度：GB/T12221法兰连接：JB/T79

2、试验与检验：JB/T9002产品标识：GB/T12220供货规范：JB/T7928国标法兰截止阀性能参数型号J41H-16C～160CJ41Y-16C～160CJ41W-16P～160P工作压力（MPa）1.6～16.0适用温度（℃）≤425≤150适用介质水、蒸汽、油品弱腐蚀性介质材料阀体、阀盖碳素钢铬镍钛不锈钢阀杆铬不锈钢铬镍钛不锈钢密封面堆焊铁基合金堆焊硬基合金本体材料填料石棉石墨、柔性石墨、聚四氟乙烯国标法兰截止阀压力试验MPa公称压力1.62.54.06.410.016.0强度试验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气密封试验0.4-0.7国标法兰截止阀主要零件材料及性能体盖扳阀杆密封面垫片(环)填料工作温度℃适用介质WCB2Cr1313CrSTL增强柔性石墨1Crl3／柔性石墨柔性石墨≤425 本体材料尼龙08软钢0Cr18Ni9TiOCr18Ni12Mo2Ti增强柔性石墨SFB-260SFP-260水、蒸汽、油品WC138CrMoAI≤45025Cr2MoVWC6≤540WC9≤570ZGCr5Mo≤540ZG1Cr18Ni9Ti1Cr18Ni9Ti≤200硝酸类ZGCr18Ni12Mo2Ti1C18

4、Ni12Mo2Ti≤200醋酸类PNl．6MPa规格主要尺寸1.6MPaDNLDD1D2bn-ΦdHD0凸面法兰RFJ41HJ41YJ41WJ41FJ41N16C16P16R16I10130906040144-Φ1419812015130956545144-Φ14218120201501057555144-Φ14258140251601158565144-Φ142751403218013510078164-Φ182801604020014511085164-Φ1833018050230160125100164-Φ1835020065290180145120184

5、-Φ1837028080310195160135208-Φ18400280100350215180155208-Φ18415320125400245210185228-Φ18460360150480280240210248-Φ235104502006003352952652612-Φ237105002506504053353203012-Φ257865503007504604103753012-Φ259256002.5MPa规格主要尺寸2.5MPaDNLDD1D2bn-ΦdHD0 10130906040164-Φ1419812015130956545164-Φ1

6、4218120201501057555164-Φ14258140251601158565164-Φ142751403218013510078184-Φ182801604020014511085184-Φ1833018050230160125100204-Φ1835020065290180145125228-Φ1840028080310195160135228-Φ18355280100350230190160248-Φ23415320125400270220188288-Φ25460360150480300250218308-Φ255104502006003603

7、102783412-Φ257105002506224253703323612-Φ307865503006984854303904016-Φ309256004.0MPa规格主要尺寸4.0MPaDNLDD1D2D6bn-ΦdHD0凹凸法兰MFMJ41HJ41YJ41WJ41N4040P40R40I1013090604135144-Φ141981201513095654540164-Φ1423312020150105755551164-Φ1429514025160115856558164-Φ14285160321801351007866184-Φ18302160402

8、001451108576