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近年来结合大直径输水管线施工的需要,我公司研制了适用于预应力混凝土管安装施工的单口试压设备(亦可应用于钢、及铸铁管材)曾在天津市引滦入港DN1200mm 及山东淄博引黄DN2000mm预应力混凝土管安装,厦门特区供水DN2000mm 钢管安装等大直径输水管线施工中应用,并部分取代了分段试压。通过工程实验我们认为单口试压是检验大口径输
In recent years, combined with the needs of construction of large diameter water pipelines, our company has developed a single-port pressure test equipment (also applicable to steel and cast iron pipes) suitable for installation and construction of prestressed concrete pipe. Zibo Diversion DN2000mm prestressed concrete pipe installation, Xiamen Special Economic Zone DN2000mm steel pipe installation and other large diameter water pipeline construction and partial replacement of the sub-section pressure test. Through engineering experiments, we think that single port pressure test is to test large diameter input