低温法兰截止阀产品概述：适用于低温液体贮运设备的管理系统，具有开关灵活、密封可靠的特点，也可用于其他低温和深冷介质的管理系统低温法兰截止阀执行标准设计与制造：JB/T7749-95结构长度：GB/T12221-89连接端：GB/T9113-2000，HG20592-97，SH3406-96GB/T12224-89检验与试验：JB/T7749-95低温法兰截止阀执行标准：设计与制造结构长度浩兰尺寸压力-温度试验-检验JB/T7749GB12221JB79GB9131JB/T9092低温法兰截止阀压力试验：公称压力PN1.62.54.0强度试验2.43.86.0水密封试验1.82.84.4上密封试验1.82.84.4气密封试验0.4-0.7低温法兰截止阀主要零件材料及性能：体盖板阀杆密封面垫片埴料工作温度℃适用介质LCB1Cr17Ni12DTL/DTL1Cr13/柔性石墨低温石棉PTFE浸四氟乙烯石棉绳柔性石墨-46丙烷/丙烯甲醇,乙烷煤气/液氨LC1-60LC2-73LC31Cr18Ni9Ti-101LC4-115LC8-196五、国标低温截止阀(节流)阀PNl.6MPa一4.0MPa规格主要尺寸：1.6MPaDNLDD1D2bn-ΦdHD0-46℃4-101℃-196℃凸面法兰RFDJ41Y-16LDJ41Y-16LC1DJ41Y-16LC2DJ41Y-16LC3DJ41Y-16LC4DJ41Y-16PDJ41Y-16R50230160125100164-Φ1846048052024065290180145120184-Φ1847550552528080310195160135208-Φ18520550590280100350215180155208-Φ18545575615320125400245210185228-Φ18590620660360150480280240210248-Φ236506807304002006003352952652612-Φ238508809304002507304053553203012-Φ2595698610364503008504604103753012-Φ251095112511755002.5MPa50230160125100204-Φ18460460520240凸面法兰RFDJ41Y-25LDJ41Y-25LC1DJ41Y-25LC2DJ41Y-25LC3DJ41Y-25LC4DJ41Y-25PDJ41Y-25R65290180145120228-Φ1847550552528080310195160135228-Φ18520550590280100350230190160248-Φ23545575615320125400270220188288-Φ25590620660360150480300250218308-Φ256506807304002006003603102783412-Φ258508809304002507304253703323612-Φ3095698610364503008504854303904016-Φ301095112511755004.0MPa50230160125100204-Φ18483504546240凸面法兰RFDJ41Y-40LDJ41Y-40LC1DJ41Y-40LC2DJ41Y-40LC3DJ41Y-40LC4DJ41Y-40PDJ41Y-40R65290180145120228-Φ1849953055128080310195160135228-Φ18546578620280100350230190160248-Φ23572604646320125400270220188288-Φ256206516933601504803302850218308-Φ256837417674002006003753202823812-Φ308939249774002507304453853454212-Φ341004103510884503008505104504084616-Φ34115011811234500)