共找到 518 条与 化工设备 相关的标准,共 35 页
Technical specifications of plane grinding machine
本标准适用于以碳钢、低合金钢制造的无缝对焊管件。包括三通(等径与异径),90°弯头(长半径和短半径),异径管(同心与偏心)和管帽四种,分公制和英制两个系列。 根据目前国内生产情况和使用情况,这四种管件的直径范围定为:等径三通、异径三通主管;90°弯头;同心异径管、偏心异径管大端;管帽的公称直径为50~600mm(2″~24″),异径三通其支管的最小公称直径为大端公称直径之半。公制管件公称压力分为PN25。40、64、100kgf/cm2(即2.5MPa,4.0MPa,6.4MPa、10MPa)四档。璧厚按材料许用应力〔σ〕=1310kgf/cm2,介质腐蚀裕度取1.5mm算出,英制管件接管标号(Schedule Number简写为Sch××)分为Sch40,Sch80、Sch160兰种。 本标准中所采用的单位:长度为mm(注明cm除外)、荚寸:压力为kgf/cm^(2)(1kgf/cm^(2)≈O.1MPa);重量为kg。 所有管件的管接口厚度见管件接管规格表,订货者如有特殊要求可另提。
Carbon steel, low alloy steel seamless butt welding pipe fittings
Fiberglass/polyvinyl chloride (FRP/PVC) composite pipes and fittings
Specifications for construction and acceptance of tube furnace installation engineering
Pressure vessel sight glass with neck sight glass
F-46.lined carbon steel glassfloater level indicator
Methods of performance tests for oil burners
Specification for construction and acceptance of wet-type gas holders with metal welded structure
Atmospheric pressure quick opening hand hole
Horizontal ceiling butt welding flange entry hole
Rotary cover butt welding flange access hole
Flat cover butt welding flange hand hole
Rotary cover butt welding flange hand hole
Oblong rotary cover quick opening manhole
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