HDPE双壁波纹管管材的接口处理规定.doc

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HDPE双壁波纹管管材的接口处理规定

HDPE双壁波纹管管材的接口处理规定 HDPE双壁波纹管管材的接口处理规定提要:接口时,先将承口的内壁清理干净,并在承口内壁及插口橡胶圈上涂润滑剂,然后将承插口端面的中心轴线对齐 HDPE双壁波纹管管材的接口处理规定 承插式连接如下(DN≤500): HDPE双壁波纹管管道接头应采用弹性密封橡胶圈连接的承插式接口,橡胶圈接口应遵守下列规定: 1、接口前,应先检查橡胶圈是否配套完好,确认橡胶圈安放位置及插口的插入深度。 2、接口时,先将承口的内壁清理干净,并在承口内壁及插口橡胶圈上涂润滑剂,然后将承插口端面的中心轴线对齐。 3、接口方法应按下述程序进行:DN400及其以下管道,先由一人用棉纱绳吊住被安装管道的插口,另一人用长撬棒斜插入基础,并抵住该管端部中心位置的横挡板,然后用力将该管缓缓插入待安装HDPE双壁波纹管管道的承口至预定位置;DN400以上管道可用两台手扳葫芦将管节拉动就位。接口合拢时,管节两侧的手扳葫芦应同步拉动,使橡胶密封圈正确就位,不扭曲、不脱落。 Measures for the routine management of moral education in Middle SchoolsMethod of conventional management of moral education in middle schoolFirst, the guiding ideology:School moral education is an organic whole of the whole education work, always adhere to the school adhere to the moral education, education for this product, and actively promote the quality education, the school building efficient curriculum system of moral education, moral education, improve the sense of attraction and appeal, enhance the moral education work for through and timeliness. Teach everyone, service education and management education, and school moral education work must be with family education and community education closely together, to form a concerted pattern, and strive to create a good atmosphere for education, and to promote the all-round development of students, to establish a scientific moral education full of vigor the For long-term mechanism.Two, the goal of moral education:To guide the students to form the correct world outlook, outlook on life, values, to cultivate students unity and mutual assistance, honest and trustworthy, law-abiding, good quality, hard work, set a good XX students ideological quality, psychological quality and image quality. The formation of excellent moral education curriculum system and management system, the construction of school. The society, family moral education network, to achieve full member education, environment education, education service people, educating people. Traditional mo

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