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1、宁波圣威密封材料有限公司HG20631-97钢制管法兰用缠绕式（美洲体系）规定了钢制管法兰用缠绕式垫片的形式、尺寸和技术要求。使用于HG20615所规定的公称压力PN为2.0MPa（Class 150）26.0Mpa（Class 1500）的钢制管法兰用缠绕式垫片。缠绕式垫片的形式：型式代号适用密封面型式基本型A榫槽面带内环型B凹凸面带外环型C突面带内外环型D金属缠绕垫片的最高工作温度金属带材质非金属带材料最高工作温度名称标准名称标准304GB4239石棉和非石棉ASB和NA500316柔性石墨带ZB J22 019650316L聚四氟乙烯带ZB G33 005200HG20631-97的缠绕
2、垫片的尺寸C和D型PN2.0(150#)C和D型PN5.0(300#)PNSDND1D2D3D4D1D2D3D41/21514.219.131.846.514.219.131.852.53/42020.625.439.65620.625.439.666.512526.931.847.865.526.931.847.8731-1/43238.147.860.57538.147.860.582.51-1/24044.554.169.984.544.554.169.994.525055.669.985.9104.555.669.985.91112-1/26566.582.698.6123.566.5
3、82.698.612938081101.6120.7136.581101.6120.7148.54100106.4127149.4174.5106.4127149.41805125131.8155.7177.8196131.8155.7177.82156150157.2182.6209.6221.5157.2182.6209.62508200215.9233.4263.7278.5215.9233.4263.730610250268.2287.3317.5338268.2287.3317.5360.512300317.5339.9374.7408317.5339.9374.7421143503
4、49.3371.6406.4449349.3371.6406.4484.516400400.1422.4463.6513400.1422.4463.6538.518450449.3474.7527.1548449.3474.7527.1595.520500500.1525.5577.9605500.1525.5577.965322550552.5577.9635659552.5577.963570424600603.3628.7685.8716.5603.3628.7685.8774 | 宁波圣威密封材料有限公司 地址：浙江省慈溪市坎墩经济技术开发区兴安路98号 电话：0574-2345.0044, 传真：0574-2345.0015 网址： 邮箱：
