■特点及用途通风蝶阀采用与阀体相同材料加工成密封圈，其适用温度随阀体选材而定，公称压力≤0.6MPa，一般适用于工业、冶金、环保等管道作通风调节介质流量之用。其主要特点为：1、设计新颖、合理、结构独特，重量轻，启闭迅速。2、操作力矩小，操作方便，省力灵活。3、采用适应的材料以满足低、中、高不同介质温度及腐蚀性介质。■性能规范公称通径DN（mm）50-1200公称压力PN(MPa)0.050.250.6公称压力(MPa)强度试验0.0750.3750.9密封试验≤15%材料\材料代号CPR主要零件阀体WCB1Cr18Ni9Ti0Cr18Ni12Mo2Ti蝶板2Cr131Cr18Ni9Ti0Cr18Ni12Mo2Ti阀杆2Cr131Cr18Ni9Ti0Cr18Ni12Mo2Ti密封圈与阀体相同填料氟塑料、柔性石墨适用工况适用介质煤气、含尘气体、烟道气等适用温度-29℃～425℃-40℃～200℃执行器型号GT或AW系列气源压力0.3-0.7MPa执行标准设计制造结构长度法兰尺寸压力温度试验检验GBT/12238GB12221GB9115GB9131GB13927■安装尺寸表公称通径DN（mm）尺寸（mm）执行器型号（仅供参考）LH0.05MPa和0.25MPa0.6MPaDDD2N-dDDD2N-d5010870140110884-18140110884-14GTD-6565112801601301084-181601301084-1480114951901501244-181901501244-181001271052101701444-182101701444-181251401202402001748-182402001748-181501401322652251998-182652251998-182001521603202802548-183202801548-1825016518737533530912-1837533530912-1830017822044039536312-2244039536312-2235019024549044541312-2249044541312-2240021627054049546316-2254049546316-2245022229759555051816-2259555051816-2250022932264560056820-2264560056820-2260026737775570566720-2675570566720-2670029243086081077224-2686081077224-2680031848797592087824-3097592087824-30139003305371075102097824-301075102097824-30AW17100041058711751120107828-3011751120107828-30AW17120047068713751320128032-3014051340129532-33AW20