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上海精规石油设备有限公司

专业提供API石油螺纹量规、单项仪、锥度规,石墨电极量规

服务热线:021-51098802  联系人:王哲 15800691952

(LCSG)长圆扣石油螺纹量规


 

长圆扣螺纹量规:圆螺纹有套管短圆螺纹(英文简写CSG)与套管长圆螺纹套管(LCSG)之分。圆螺纹为无台肩锥管螺纹、需要有接箍连接,牙型为三角形、圆顶圆底,牙形角为60°,螺纹锥度为1:16,牙形角平分线与轴线垂直,当螺纹旋紧后,靠内外螺纹的牙侧面密封。,



规格外径中径牙数锥度紧密距
4-1/2114.30111.84681:169.525±0.635
5127.00124.546
5-1/2139.70137.246
6-5/8168.28165.821
7177.80175.346
7-5/8193.68191.114
8-5/8219.08216.514
9-5/8244.48241.914
10-3/4273.05270.489
11-3/4298.45295.889
13-3/8339.72337.164
16406.40403.839
18-5/8473.08470.514
20508.00505.439