1、中华人民共和国国家标准UDC621.643:669.131.8可锻铸铁管路连接件型式尺寸GB3289.5-82异径内外丝弯头Malleable cast iron pipe fittings-Type size-Male and female reducing elbows本标准适用于公称通径Dg6150mm,公称压力Pg小于或等于16kgf/cm2,试验压力24kgf/cm2,介质最高工作温度不超过200的输送水、油、空气、煤气、蒸汽等一般管路上的管路连接件。1型式尺寸如图表。公称通径Dg称通径Dgab公6mminmmmminmm1083/g1/a2033251511/2158/2/4243
2、4252013/434521510123/s263732814/43020834a253832101l43/s335020103/43/828403215141/2345320153/41/2294532201/43/438572581/4274232251/41406125101米3/830444081/2/43149国家标准局1982-11-15发布1983-10-01实施GB3289.5-82续表公称通径Dgb公称通径Dgaabmminmmmminmm401011/23/834518032311/45592401511/2 1/235578040311/25894402011/23/43
3、8608050326298402511/2141648065321272105403211/211/44570901531/21/2478650821/43456902031/2 3/45090501023/g3758902531/215494501521/23863903231/211/45799502023/44166904031/211/26010050252144709050312265106503221448906531/221/274112755040211/252908031/2380119651521/21/24172100154125094652021/2 3/4447510
4、020434549765252/214879100254157102653221/211/45210032411/46184108654021/211/25510040411/26365502226091100504269113801531/2438010065421/278120802033/44683100804383125802531508710090431/290130GB3289.5-82续表公称通径g公称通径DgQabmminmmmminmm125205%551131502561641291252551601161503261%671351253251%62150406127013612125405x12661505062751411255052721291506562285148125655212811351508063921541258053871411509063h9716012590532931441501006410216512510054100151150125651161721502063斯601252结构尺寸按GB3289.1-82。3技术条件按GB3287-82。4检验规则按GB3288一-82。