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1、可调单向节流阀 5.2.19以强制性条文规定“室外管网应进行水力平衡计算，各并联环路之间的压力损失值不应大于15%，但室外管网水力平衡计算达不到上述要求时，应在热力站和建筑物热力入口处设置手动水力平衡阀”。因此在设计中会经常采用水力平衡阀。1水力平衡阀设置循环水泵是按最不利环路配置的，其余各环路压力降相对较小，称其为“有利环路”。由于各环路压力降不同，在运行时系统会自动分配流量使并联各环路的压降相同、导致“最不利环路”以外的环路过流，使水系统处于大流量小温差中运行。为达到各环路静态水力平衡，在经济比摩阻范围内尽量提高有利环路的流速，使压降与最不利一、产品国际电动法兰截止阀的详细资料：产品型号：
2、J941H产品名称：国际电动法兰截止阀产品特点：国标电动法兰截止阀,国标截止阀,电动法兰截止阀二、电装型号规格主要尺寸：1.6MPaDNLDD1bn-d电装型号L1HD0凸面法兰RFJ941HJ941YJ941WJ941FJ941N16C16P16R16I50230160125164-18DZW1059064536565290180145184-18DZW1059069036580310195160208-18DZW20590715365100350215180208-18DZW20590770365125400245210228-18DZW30590780365150480280240248
3、-23DZW455908753652006003352952612-23DZW608109674702506504053353012-25DZW9081011534703007504604103012-25DZW12083012925502.5MPa50230160125204-18DZW10590645365凸面法兰RFJ941HJ941YJ941W2525P25R25I65290180145228-18DZW1029069036580310195160228-18DZW20590715365100350230190248-23DZW20590770365125400270220288-25
4、DZW30590780365150480300250308-25DZW458108754702006003603103412-25DZW608109674702506504253703612-30DZW9083011535503007504854304012-30DZW1208301292550三、工洲牌PN4.0MPa-6.4MPa 国标电动法兰截止阀-电装型号规格主要尺寸：4.0MPaDNLDD1D2D6bn-d电装型号L1HD0凹凸法兰MFMJ941HJ941YJ941W4040P40R40I5023016012510088204-18ZDW10590645365652901801451
5、20110228-18ZDW1059069036580310195160135121228-18ZDW20590715365100350230190160150248-23ZDW30590770365125400270220188176288-25ZDW45810782470150480300250218204308-25ZDW608108754702006003753202822603812-30ZDW9083011605506.4MPa5030017513510588264-23ZDW10590710365凹凸法兰MFMJ941HJ941YJ941W6464P64R64I653402001
6、60130110288-23ZDW2059075036580380210170140121308-23ZDW30590785365100430250200168150328-25ZDW45810837470125500295240202176368-30ZDW608101031470150550340280240204388-34ZDW9083010665502006504053453002604412-34ZDW1208301213550一、产品低温截止（节流）阀的详细资料:产品名称：低温截止（节流）阀产品特点：国标低温截止阀,国标低温节流阀,低温截止阀二、执行标准：设计与制造结构长度浩兰尺
7、寸压力-温度试验-检验JB/T7749GB12221JB79GB9131JB/T9092三、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0.4-0.7四、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
8、.6MPaDNLDD1D2bn-dHD0-464-101-196凸面法兰RFDJ41Y-16LDJ41Y-16L C1DJ41Y-16L C2 DJ41Y-16L C3DJ41Y-16L C4 DJ41Y-16PDJ41Y-16R50230160125100164-1846048052024065290180145120184-1847550552528080310195160135208-18520550590280100350215180155208-18545575615320125400245210185228-18590620660360150480280240210248-2365
9、06807304002006003352952652612-238508809304002507304053553203012-2595698610364503008504604103753012-251095112511755002.5MPa50230160125100204-18460460520240凸面法兰RFDJ41Y-25LDJ41Y-25L C1DJ41Y-25L C2 DJ41Y-25L C3DJ41Y-25L C4 DJ41Y-25PDJ41Y-25R65290180145120228-1847550552528080310195160135228-1852055059028
10、0100350230190160248-23545575615320125400270220188288-25590620660360150480300250218308-256506807304002006003603102783412-258508809304002507304253703323612-3095698610364503008504854303904016-301095112511755004.0MPa50230160125100204-18483504546240凸面法兰RFDJ41Y-40LDJ41Y-40L C1DJ41Y-40L C2 DJ41Y-40L C3DJ41Y-40L C4 DJ41Y-40PDJ41Y-40R65290180145120228-1849953055128080310195160135228-18546578620280100350230190160248-23572604646320125400270220188288-256206516933601504803302850218308-256837417674002006003753202823812-308939249774002507304453853454212-341004103510884503008505104504084616-3411
