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国内外液压泵和马达安装法兰有菱形、方形、矩形、多边形及圆形等,为使安装连接尺寸统一。国际标准化组织ISO已制订了菱形、方形、矩形安装法兰和轴伸国际标准ISO3019/2—1980《液压泵和马达安装法兰和轴伸尺寸系列和标记第二部分:2孔和4孔法兰和轴伸——米制》。多边形和圆形安装法兰(ISO3019/3—1981)。为使我国的液压泵和马达安装连接尺寸能与国际尺寸互换,参照ISO3019/2—1980制订了国标GB2353.1—80《液压泵和马达安装法兰和轴伸的尺寸系列和标记(一)》,它规定了菱形和方形安装法兰和轴伸。并参照ISO3019/3—1981制订了多边形、圆形安装法兰和轴伸(GB2353.2),目前正在审
Domestic and foreign hydraulic pump and motor mounting flange diamond, square, rectangular, polygonal and round, etc., in order to make the installation connection size uniform. International Organization for Standardization ISO has developed a rhombus, square, rectangular mounting flange and shaft extension ISO3019 / 2-1980 “Hydraulic Pump and Motor Mounting Flanges and Shaft Extension Dimensions Series and Markings Part 2: 2-hole and 4-hole flanges and Shaft extension - metric system. ” Polygonal and round mounting flanges (ISO3019 / 3-1981). In order to make our country’s hydraulic pump and motor installation connection size can be interchangeable with the international size, reference to ISO3019 / 2-1980 developed a national standard GB2353.1-80 “hydraulic pump and motor mounting flange and shaft extension of the size series and mark ) ”, Which provides diamond-shaped and square mounting flange and shaft extension. And with reference to ISO3019 / 3-1981 developed a polygonal, circular mounting flange and shaft extension (GB2353.2), is currently under review